sharepoint中的ListViewWebPart和ViewToolBar的操作
本文内容参考了园子中【涟漪勇】的博客
http://www.cnblogs.com/rippleyong/archive/2008/10/28/1321412.html
感谢作者的贡献
上面的这个ViewToolBar是可以添加到任何地方的，添加的代码如下，他就是一个控件，继承了System.Web.UI.Control
Code
/// <summary>
/// 添加ViewToolBar
/// </summary>
private void addViewToolbar()
{
_toolbar = new ViewToolBar();
SPContext context = SPContext.GetContext(this.Context, _spview.ID, SPContext.Current.List.ID, SPContext.Current.Web);
toolbar.RenderContext = context;
Controls.Add(toolbar);
}
还有就是SharePoint中常见到的显示列表条目的那个ListViewWebPart，就是一进入一个列表，在toolbar下面的那个，上面还有列表项的操作菜单
，代码如下
Code
/// <summary>
/// 添加ListViewWebPart
/// </summary>
private void addListViewWebPart()
{
_lvwp = new ListViewWebPart();
lvwp.ListName = SPContext.Current.List.ID.ToString("B").ToUpper();
lvwp.ViewGuid = _spview.ID.ToString("B").ToUpper();
lvwp.ViewType = ViewType.Html;
Controls.Add(lvwp);
}
有谁知道这个webpart上的列表项的操作菜单（就是，那个单击标题弹出来的，修改，工作流啊，什么的）是否可以移植呢，比如说也像toolbar一样，我想移植到gridview上面去，不知道可以不，希望有答案的人可以共享一下，谢谢了。
Code
using System;
using System.Runtime.InteropServices;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Serialization;
using System.Xml;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;
using Microsoft.SharePoint.WebPartPages;
using CodeArt.SharePoint.CamlQuery;
namespace MainPage
{
[Guid("03580f1e-5fa4-467b-b7e9-3a4caa0563a1")]
public class VirusSmartQueryWebPart :BaseSPWebPart
{
private ICamlProvider _CamlProvider;
private string _LayoutControlPath = "";
private ViewToolBar _toolbar = null;
private ListViewWebPart _lvwp = null;
private SPView _spview = null;
public VirusSmartQueryWebPart()
{
_spview = SPContext.Current.List.DefaultView;
}
private void ChangeSchemaXmlQuery(XmlDocument doc, string query)
{
if (!string.IsNullOrEmpty(query))
{
string innerQuery = this.GetInnerQuery(query);
if (innerQuery != "")
{
XmlNode node = doc.DocumentElement.SelectSingleNode("Query");
XmlNode oldChild = node.SelectSingleNode("Where");
if (oldChild != null)
{
node.RemoveChild(oldChild);
}
XmlNode newChild = doc.CreateElement("Where");
newChild.InnerXml = innerQuery;
node.AppendChild(newChild);
doc.DocumentElement.SelectSingleNode("ViewEmpty").InnerXml = "<HTML><![CDATA[<font color='red'><b>AA Say:未找到符合查询条件的记录</b></font>]]></HTML>";
}
}
}
protected override void CreateChildControls()
{
base.CreateChildControls();
if (_toolbar == null)
{
addViewToolbar();
}
if (_lvwp == null)
{
addListViewWebPart();
}
QueryField title = new QueryField("Title");
this.SetCurrentListViewSchemaQuery(CamlBuilder.Where(title.Contains("1")));
try
{
if (!string.IsNullOrEmpty(this._LayoutControlPath))
{
Control child = this.Page.LoadControl(this._LayoutControlPath);
this._CamlProvider = child as ICamlProvider;
this.Controls.Add(child);
}
else
{
base.RegisterShowToolPanelControl("请打开工具窗格", "设置“布局控件路径（LayoutControlPath）”", "如“~/_CONTROLTEMPLATES/CodeArt_ExampleQueryLayout.ascx");
}
}
catch (Exception exception)
{
base.RegisterError(exception);
}
// TODO: add custom rendering code here.
// Label label = new Label();
// label.Text = "Hello World";
// this.Controls.Add(label);
}
private string GetInnerQuery(string q)
{
XmlDocument document = new XmlDocument();
document.LoadXml(q);
return document.DocumentElement.InnerXml;
}
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
this.EnableViewState = true;
this.EnsureChildControls();
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
if (this.Page.IsPostBack)
{
//CamlExpression expr = null;
//try
//{
// expr = this.QueryExpression;
//}
//catch (Exception exception)
//{
// base.RegisterError(exception);
// return;
//}
//if (expr != null)
//{
// string qxml = CamlBuilder.Where(this.List, expr);
// this.SetCurrentListViewSchemaQuery(qxml);
//}
QueryField targetTo = new QueryField("TargetTo");
QueryField title = new QueryField("Title");
this.SetCurrentListViewSchemaQuery(CamlBuilder.Where(title.Contains("1")));
}
}
/// <summary>
/// 添加ViewToolBar
/// </summary>
private void addViewToolbar()
{
_toolbar = new ViewToolBar();
SPContext context = SPContext.GetContext(this.Context, _spview.ID, SPContext.Current.List.ID, SPContext.Current.Web);
toolbar.RenderContext = context;
Controls.Add(toolbar);
}
/// <summary>
/// 添加ListViewWebPart
/// </summary>
private void addListViewWebPart()
{
_lvwp = new ListViewWebPart();
lvwp.ListName = SPContext.Current.List.ID.ToString("B").ToUpper();
lvwp.ViewGuid = _spview.ID.ToString("B").ToUpper();
lvwp.ViewType = ViewType.Html;
Controls.Add(lvwp);
}
private void SetCurrentListViewSchemaQuery(string qxml)
{
if (!string.IsNullOrEmpty(qxml))
{
string strB = "{" + this.List.ID.ToString() + "}";
foreach (System.Web.UI.WebControls.WebParts.WebPart part in base.Zone.WebParts)
{
if (part is ListViewWebPart)
{
ListViewWebPart part2 = (ListViewWebPart)part;
if (string.Compare(part2.ListName, strB, true) != 0)
{
continue;
}
if (string.IsNullOrEmpty(qxml))
{
part2.ListViewXml = this.List.Views[new Guid(part2.ViewGuid)].HtmlSchemaXml;
}
else
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(part2.ListViewXml);
this.ChangeSchemaXmlQuery(doc, qxml);
part2.ListViewXml = doc.InnerXml;
}
return;
}
}
}
}
[Personalizable(PersonalizationScope.Shared), WebBrowsable]
public string LayoutControlPath
{
get
{
return this._LayoutControlPath;
}
set
{
this._LayoutControlPath = value;
}
}
private SPList List
{
get
{
return SPContext.Current.List;
}
}
public CamlExpression QueryExpression
{
get
{
this.EnsureChildControls();
if (this._CamlProvider != null)
{
return this._CamlProvider.QueryExpression;
}
return null;
}
}
}
}
下面是上面用到的BaseSPWebPart和ICamlProvider的源代码，是我反编译了园子中jianyi0115的SmartQuery之后的代码，谢谢了
关于CamlQuery和SmartQuery的详细信息可以访问，这两个是作者写的caml辅助工具和列表查询（目前是单列表，希望作者可以升级为兼容多个列表的查询）辅助工具.
http://www.cnblogs.com/jianyi0115/archive/2008/02/15/1070158.html
Code
using System;
using System.Collections.Generic;
using System.Web.UI;
using System.Web.UI.WebControls.WebParts;
namespace MainPage
{
public abstract class BaseSPWebPart : WebPart
{
private bool _EnableShowErrorMessage = true;
private IList<Exception> _Exceptions = new List<Exception>();
protected BaseSPWebPart()
{
}
protected void AddHtml(string html)
{
LiteralControl child = new LiteralControl
{
EnableViewState = false,
Text = html
};
this.Controls.Add(child);
}
protected void AddHtml(string html, Control ctl)
{
LiteralControl child = new LiteralControl
{
EnableViewState = false,
Text = html
};
ctl.Controls.Add(child);
}
protected string GeyShowToolPanelScript()
{
return ("MSOTlPn_ShowToolPane2Wrapper('Edit','129','" + this.ID + "')");
}
protected override void OnUnload(EventArgs e)
{
base.OnUnload(e);
}
protected void RegisterError(Exception ex)
{
this._Exceptions.Add(ex);
}
protected void RegisterShowToolPanelControl(string msg1, string msg2, string msg3)
{
LiteralControl child = new LiteralControl
{
Text = "<P><DIV class=\"UserGeneric\">" + msg1 + "<A HREF=\"javascript:" + this.GeyShowToolPanelScript() + "\">" + msg2 + "</A>" + msg3 + "</DIV></P>"
};
this.Controls.Add(child);
}
protected override void RenderContents(HtmlTextWriter writer)
{
base.RenderContents(writer);
this.RenderErrors(writer);
}
protected void RenderError(Exception ex, HtmlTextWriter w)
{
if (this._EnableShowErrorMessage)
{
w.Write(ex.Message);
w.Write("<br/>");
w.Write(ex.StackTrace);
w.Write("<br/>");
if (ex.InnerException != null)
{
this.RenderError(ex.InnerException, w);
}
}
else
{
w.Write("鍙戠敓閿欒");
}
}
protected void RenderErrors(HtmlTextWriter w)
{
if (this._EnableShowErrorMessage && (this._Exceptions.Count != 0))
{
foreach (Exception exception in this._Exceptions)
{
w.Write(exception.Message);
w.Write("<br/>");
w.Write(exception.StackTrace);
w.Write("<br/>");
}
this._Exceptions.Clear();
}
}
[WebBrowsable, Personalizable(PersonalizationScope.Shared)]
public bool EnableShowErrorMessage
{
get
{
return this._EnableShowErrorMessage;
}
set
{
this._EnableShowErrorMessage = value;
}
}
}
}
using CodeArt.SharePoint.CamlQuery;
public interface ICamlProvider
{
CamlExpression QueryExpression { get; }
}
下面的代码是一个查询的webpart，列表开启了访问群体控制，使得用户进入显示列表项页面的时候看到自己可以看到的列表项，要把过滤条件写在
createchildcontrols方法中才可以实现，这个我实验了一个星期啊，
下面的图示为管理员进入列表之后看到的列表项
下面的图示为普通用户进入列表之后的查询界面和看到的列表项，用户所属的sharepoint用户组为“开发部”
Code
using System;
using System.Runtime.InteropServices;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Serialization;
using System.Xml;
using System.Collections.Generic;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;
using Microsoft.SharePoint.WebPartPages;
using CodeArt.SharePoint.CamlQuery;
namespace MainPage
{
[Guid("03580f1e-5fa4-467b-b7e9-3a4caa0563a1")]
public class VirusSmartQueryWebPart : System.Web.UI.WebControls.WebParts.WebPart
{
private QueryField _bulletinTitle;
private QueryField _bulletinContent;
private QueryField _bulletinReleaseBeginDT;
private QueryField _bulletinReleaseEndDT;
private QueryField _bulletinExpireBeginDT;
private QueryField _bulletinExpireEndDT;
private QueryField _bulletinTargetTo;
private Table table = null;
private TextBox bulletinTitle = null;
private TextBox bulletinContent = null;
private DateTimeControl bulletinReleaseDTBegin = null;
private DateTimeControl bulletinExpireDTBegin = null;
private Button btnQuery = null;
private DateTimeControl bulletinReleaseDTEnd = null;
private DateTimeControl bulletinExpireDTEnd = null;
private ICamlProvider _CamlProvider;
private string _LayoutControlPath = "";
/// <summary>
/// 过滤条件表达式
/// </summary>
private CamlExpression _camlExpression;
private ViewToolBar _toolbar = null;
private ListViewWebPart _lvwp = null;
private SPView _spview = null;
/// <summary>
/// 当前用户所在的SharePoint用户组
/// </summary>
private List<string> currUserGroups = null;
/// <summary>
/// 当前用户是否公告管理员
/// </summary>
private bool IsBulletinAdmin = false;
public VirusSmartQueryWebPart()
{
_spview = SPContext.Current.List.DefaultView;
addCurrentUserGroup();
isBulletinAdmin();
}
/// <summary>
/// 将当前用户所在的用户组添加到currUserGroup集合
/// </summary>
private void addCurrentUserGroup()
{
currUserGroups = new List<string>();
currUserGroups.Clear();
SPGroupCollection groups = SPContext.Current.Web.CurrentUser.Groups;
foreach (SPGroup g in groups)
{
currUserGroups.Add(g.Name);
}
}
/// <summary>
/// 判断当前用户是否公告管理员
/// </summary>
/// <returns></returns>
private void isBulletinAdmin()
{
if (currUserGroups.Count > 0)
{
foreach (string s in currUserGroups)
{
if (s.Equals("公告管理员"))
{
IsBulletinAdmin = true;
break;
}
}
}
}
private void ChangeSchemaXmlQuery(XmlDocument doc, string query)
{
if (!string.IsNullOrEmpty(query))
{
string innerQuery = this.GetInnerQuery(query);
if (innerQuery != "")
{
XmlNode node = doc.DocumentElement.SelectSingleNode("Query");
XmlNode oldChild = node.SelectSingleNode("Where");
if (oldChild != null)
{
node.RemoveChild(oldChild);
}
XmlNode newChild = doc.CreateElement("Where");
newChild.InnerXml = innerQuery;
node.AppendChild(newChild);
doc.DocumentElement.SelectSingleNode("ViewEmpty").InnerXml = "<HTML><![CDATA[<font color='red'><b>AA Say:未找到符合查询条件的记录</b></font>]]></HTML>";
}
}
}
protected override void CreateChildControls()
{
base.CreateChildControls();
_bulletinTargetTo = new QueryField(SPContext.Current.List.Fields["目标访问群体"].InternalName);
if (!IsBulletinAdmin)
{
_camlExpression = _bulletinTargetTo.Contains(SPContext.Current.Web.CurrentUser.Groups[0].Name);
}
if (_camlExpression != null)
{
this.SetCurrentListViewSchemaQuery(CamlBuilder.Where(_camlExpression));
}
if (table != null)
{
this.Controls.Add(table);
}
else
{
createTable();
this.Controls.Add(table);
}
}
private string GetInnerQuery(string q)
{
XmlDocument document = new XmlDocument();
document.LoadXml(q);
return document.DocumentElement.InnerXml;
}
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
this.EnableViewState = true;
this.EnsureChildControls();
}
/// <summary>
/// 创建查询界面布局
/// </summary>
private void createTable()
{
table = new Table();
TableRow tr1 = new TableRow();
TableCell cell11 = new TableCell();
cell11.Text = "公告标题";
tr1.Cells.Add(cell11);
TableCell cell12 = new TableCell();
bulletinTitle = new TextBox();
bulletinTitle.ID = "bulletinTitle";
bulletinTitle.Text = "";
cell12.Controls.Add(bulletinTitle);
tr1.Cells.Add(cell12);
TableCell cell13 = new TableCell();
cell13.Text = "公告发布时间";
tr1.Cells.Add(cell13);
TableCell cell14 = new TableCell();
bulletinReleaseDTBegin = new DateTimeControl();
bulletinReleaseDTBegin.ID = "bulletinReleaseDT";
bulletinReleaseDTBegin.DateOnly = true;
cell14.Controls.Add(bulletinReleaseDTBegin);
tr1.Cells.Add(cell14);
TableCell cell15 = new TableCell();
cell15.Text = "公告过期时间";
tr1.Cells.Add(cell15);
TableCell cell16 = new TableCell();
bulletinExpireDTBegin = new DateTimeControl();
bulletinExpireDTBegin.DateOnly = true;
bulletinExpireDTBegin.ID = "bulletinExpireDTBegin";
cell16.Controls.Add(bulletinExpireDTBegin);
tr1.Cells.Add(cell16);
TableCell cell17 = new TableCell();
btnQuery = new Button();
btnQuery.ID = "btnQuery";
btnQuery.Text = "查询";
btnQuery.Click += new EventHandler(btnQuery_Click);
cell17.Controls.Add(btnQuery);
tr1.Cells.Add(cell17);
table.Rows.Add(tr1);
TableRow tr2 = new TableRow();
TableCell cell21 = new TableCell();
cell21.Text = "公告内容";
tr2.Cells.Add(cell21);
TableCell cell22 = new TableCell();
bulletinContent = new TextBox();
bulletinContent.ID = "bulletinContent";
bulletinContent.Text = "";
cell22.Controls.Add(bulletinContent);
tr2.Cells.Add(cell22);
TableCell cell23 = new TableCell();
cell23.Text = "到";
tr2.Cells.Add(cell23);
TableCell cell24 = new TableCell();
bulletinReleaseDTEnd = new DateTimeControl();
bulletinReleaseDTEnd.ID = "bulletinReleaseDTEnd";
bulletinReleaseDTEnd.DateOnly = true;
cell24.Controls.Add(bulletinReleaseDTEnd);
tr2.Cells.Add(cell24);
TableCell cell25 = new TableCell();
cell25.Text = "到";
tr2.Cells.Add(cell25);
TableCell cell26 = new TableCell();
bulletinExpireDTEnd = new DateTimeControl();
bulletinExpireDTEnd.DateOnly = true;
bulletinExpireDTEnd.ID = "bulletinExpireDTEnd";
cell26.Controls.Add(bulletinExpireDTEnd);
tr2.Cells.Add(cell26);
TableCell cell27 = new TableCell();
cell27.Text = "";
tr2.Cells.Add(cell27);
table.Rows.Add(tr2);
}
/// <summary>
/// 单击查询按钮
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void btnQuery_Click(object sender, EventArgs e)
{
_bulletinTitle = new QueryField("Title");
_bulletinContent = new QueryField(List.Fields["公告内容"].InternalName);
_bulletinReleaseBeginDT = new QueryField(List.Fields["公告发布时间"].InternalName);
_bulletinReleaseEndDT = new QueryField(List.Fields["公告发布时间"].InternalName);
_bulletinExpireBeginDT = new QueryField(List.Fields["公告过期时间"].InternalName);
_bulletinExpireEndDT = new QueryField(List.Fields["公告过期时间"].InternalName);
//throw new NotImplementedException();
if (!string.IsNullOrEmpty(bulletinTitle.Text))
{
if (_camlExpression == null)
{
_camlExpression = _bulletinTitle.Contains(bulletinTitle.Text.Trim());
}
else
{
_camlExpression = _camlExpression && _bulletinTitle.Contains(bulletinTitle.Text.Trim());
}
}
if (!string.IsNullOrEmpty(bulletinContent.Text))
{
if (_camlExpression == null)
{
_camlExpression = _bulletinContent.Contains(bulletinContent.Text.Trim());
}
else
{
_camlExpression = _camlExpression && _bulletinContent.Contains(bulletinContent.Text.Trim());
}
}
if (!bulletinReleaseDTBegin.IsDateEmpty && !bulletinReleaseDTEnd.IsDateEmpty)
{
if (_camlExpression == null)
{
_camlExpression = _bulletinReleaseBeginDT.MoreEqual(bulletinReleaseDTBegin.SelectedDate) && _bulletinReleaseEndDT.LessEqual(bulletinReleaseDTEnd.SelectedDate);
}
else
{
_camlExpression = _camlExpression && _bulletinReleaseBeginDT.MoreEqual(bulletinReleaseDTBegin.SelectedDate) && _bulletinReleaseEndDT.LessEqual(bulletinReleaseDTEnd.SelectedDate);
}
}
if (!bulletinExpireDTBegin.IsDateEmpty && !bulletinExpireDTEnd.IsDateEmpty)
{
if (_camlExpression == null)
{
_camlExpression = _bulletinExpireBeginDT.MoreEqual(bulletinExpireDTBegin.SelectedDate) && _bulletinExpireEndDT.LessEqual(bulletinExpireDTEnd.SelectedDate);
}
else
{
_camlExpression = _camlExpression && _bulletinExpireBeginDT.MoreEqual(bulletinExpireDTBegin.SelectedDate) && _bulletinExpireEndDT.LessEqual(bulletinExpireDTEnd.SelectedDate);
}
}
if (QueryExpression != null)
{
this.SetCurrentListViewSchemaQuery(CamlBuilder.Where(QueryExpression));
}
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
}
/// <summary>
/// 添加ViewToolBar
/// </summary>
private void addViewToolbar()
{
_toolbar = new ViewToolBar();
SPContext context = SPContext.GetContext(this.Context, _spview.ID, SPContext.Current.List.ID, SPContext.Current.Web);
_toolbar.RenderContext = context;
Controls.Add(_toolbar);
}
/// <summary>
/// 添加ListViewWebPart
/// </summary>
private void addListViewWebPart()
{
_lvwp = new ListViewWebPart();
_lvwp.ListName = SPContext.Current.List.ID.ToString("B").ToUpper();
_lvwp.ViewGuid = _spview.ID.ToString("B").ToUpper();
_lvwp.ViewType = ViewType.Html;
Controls.Add(_lvwp);
}
private void SetCurrentListViewSchemaQuery(string qxml)
{
if (!string.IsNullOrEmpty(qxml))
{
string strB = "{" + this.List.ID.ToString() + "}";
foreach (System.Web.UI.WebControls.WebParts.WebPart part in base.Zone.WebParts)
{
if (part is ListViewWebPart)
{
ListViewWebPart part2 = (ListViewWebPart)part;
if (string.Compare(part2.ListName, strB, true) != 0)
{
continue;
}
if (string.IsNullOrEmpty(qxml))
{
part2.ListViewXml = this.List.Views[new Guid(part2.ViewGuid)].HtmlSchemaXml;
}
else
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(part2.ListViewXml);
this.ChangeSchemaXmlQuery(doc, qxml);
part2.ListViewXml = doc.InnerXml;
}
return;
}
}
}
}
[Personalizable(PersonalizationScope.Shared), WebBrowsable]
public string LayoutControlPath
{
get
{
return this._LayoutControlPath;
}
set
{
this._LayoutControlPath = value;
}
}
private SPList List
{
get
{
return SPContext.Current.List;
}
}
public CamlExpression QueryExpression
{
get
{
this.EnsureChildControls();
if (this._camlExpression != null)
{
return this._camlExpression;
}
return null;
}
}
}
}
http://www.cnblogs.com/rippleyong/archive/2008/10/28/1321412.html
感谢作者的贡献
上面的这个ViewToolBar是可以添加到任何地方的，添加的代码如下，他就是一个控件，继承了System.Web.UI.Control
Code
/// <summary>
/// 添加ViewToolBar
/// </summary>
private void addViewToolbar()
{
_toolbar = new ViewToolBar();
SPContext context = SPContext.GetContext(this.Context, _spview.ID, SPContext.Current.List.ID, SPContext.Current.Web);
toolbar.RenderContext = context;
Controls.Add(toolbar);
}
还有就是SharePoint中常见到的显示列表条目的那个ListViewWebPart，就是一进入一个列表，在toolbar下面的那个，上面还有列表项的操作菜单
，代码如下
Code
/// <summary>
/// 添加ListViewWebPart
/// </summary>
private void addListViewWebPart()
{
_lvwp = new ListViewWebPart();
lvwp.ListName = SPContext.Current.List.ID.ToString("B").ToUpper();
lvwp.ViewGuid = _spview.ID.ToString("B").ToUpper();
lvwp.ViewType = ViewType.Html;
Controls.Add(lvwp);
}
有谁知道这个webpart上的列表项的操作菜单（就是，那个单击标题弹出来的，修改，工作流啊，什么的）是否可以移植呢，比如说也像toolbar一样，我想移植到gridview上面去，不知道可以不，希望有答案的人可以共享一下，谢谢了。
Code
using System;
using System.Runtime.InteropServices;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Serialization;
using System.Xml;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;
using Microsoft.SharePoint.WebPartPages;
using CodeArt.SharePoint.CamlQuery;
namespace MainPage
{
[Guid("03580f1e-5fa4-467b-b7e9-3a4caa0563a1")]
public class VirusSmartQueryWebPart :BaseSPWebPart
{
private ICamlProvider _CamlProvider;
private string _LayoutControlPath = "";
private ViewToolBar _toolbar = null;
private ListViewWebPart _lvwp = null;
private SPView _spview = null;
public VirusSmartQueryWebPart()
{
_spview = SPContext.Current.List.DefaultView;
}
private void ChangeSchemaXmlQuery(XmlDocument doc, string query)
{
if (!string.IsNullOrEmpty(query))
{
string innerQuery = this.GetInnerQuery(query);
if (innerQuery != "")
{
XmlNode node = doc.DocumentElement.SelectSingleNode("Query");
XmlNode oldChild = node.SelectSingleNode("Where");
if (oldChild != null)
{
node.RemoveChild(oldChild);
}
XmlNode newChild = doc.CreateElement("Where");
newChild.InnerXml = innerQuery;
node.AppendChild(newChild);
doc.DocumentElement.SelectSingleNode("ViewEmpty").InnerXml = "<HTML><![CDATA[<font color='red'><b>AA Say:未找到符合查询条件的记录</b></font>]]></HTML>";
}
}
}
protected override void CreateChildControls()
{
base.CreateChildControls();
if (_toolbar == null)
{
addViewToolbar();
}
if (_lvwp == null)
{
addListViewWebPart();
}
QueryField title = new QueryField("Title");
this.SetCurrentListViewSchemaQuery(CamlBuilder.Where(title.Contains("1")));
try
{
if (!string.IsNullOrEmpty(this._LayoutControlPath))
{
Control child = this.Page.LoadControl(this._LayoutControlPath);
this._CamlProvider = child as ICamlProvider;
this.Controls.Add(child);
}
else
{
base.RegisterShowToolPanelControl("请打开工具窗格", "设置“布局控件路径（LayoutControlPath）”", "如“~/_CONTROLTEMPLATES/CodeArt_ExampleQueryLayout.ascx");
}
}
catch (Exception exception)
{
base.RegisterError(exception);
}
// TODO: add custom rendering code here.
// Label label = new Label();
// label.Text = "Hello World";
// this.Controls.Add(label);
}
private string GetInnerQuery(string q)
{
XmlDocument document = new XmlDocument();
document.LoadXml(q);
return document.DocumentElement.InnerXml;
}
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
this.EnableViewState = true;
this.EnsureChildControls();
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
if (this.Page.IsPostBack)
{
//CamlExpression expr = null;
//try
//{
// expr = this.QueryExpression;
//}
//catch (Exception exception)
//{
// base.RegisterError(exception);
// return;
//}
//if (expr != null)
//{
// string qxml = CamlBuilder.Where(this.List, expr);
// this.SetCurrentListViewSchemaQuery(qxml);
//}
QueryField targetTo = new QueryField("TargetTo");
QueryField title = new QueryField("Title");
this.SetCurrentListViewSchemaQuery(CamlBuilder.Where(title.Contains("1")));
}
}
/// <summary>
/// 添加ViewToolBar
/// </summary>
private void addViewToolbar()
{
_toolbar = new ViewToolBar();
SPContext context = SPContext.GetContext(this.Context, _spview.ID, SPContext.Current.List.ID, SPContext.Current.Web);
toolbar.RenderContext = context;
Controls.Add(toolbar);
}
/// <summary>
/// 添加ListViewWebPart
/// </summary>
private void addListViewWebPart()
{
_lvwp = new ListViewWebPart();
lvwp.ListName = SPContext.Current.List.ID.ToString("B").ToUpper();
lvwp.ViewGuid = _spview.ID.ToString("B").ToUpper();
lvwp.ViewType = ViewType.Html;
Controls.Add(lvwp);
}
private void SetCurrentListViewSchemaQuery(string qxml)
{
if (!string.IsNullOrEmpty(qxml))
{
string strB = "{" + this.List.ID.ToString() + "}";
foreach (System.Web.UI.WebControls.WebParts.WebPart part in base.Zone.WebParts)
{
if (part is ListViewWebPart)
{
ListViewWebPart part2 = (ListViewWebPart)part;
if (string.Compare(part2.ListName, strB, true) != 0)
{
continue;
}
if (string.IsNullOrEmpty(qxml))
{
part2.ListViewXml = this.List.Views[new Guid(part2.ViewGuid)].HtmlSchemaXml;
}
else
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(part2.ListViewXml);
this.ChangeSchemaXmlQuery(doc, qxml);
part2.ListViewXml = doc.InnerXml;
}
return;
}
}
}
}
[Personalizable(PersonalizationScope.Shared), WebBrowsable]
public string LayoutControlPath
{
get
{
return this._LayoutControlPath;
}
set
{
this._LayoutControlPath = value;
}
}
private SPList List
{
get
{
return SPContext.Current.List;
}
}
public CamlExpression QueryExpression
{
get
{
this.EnsureChildControls();
if (this._CamlProvider != null)
{
return this._CamlProvider.QueryExpression;
}
return null;
}
}
}
}
下面是上面用到的BaseSPWebPart和ICamlProvider的源代码，是我反编译了园子中jianyi0115的SmartQuery之后的代码，谢谢了
关于CamlQuery和SmartQuery的详细信息可以访问，这两个是作者写的caml辅助工具和列表查询（目前是单列表，希望作者可以升级为兼容多个列表的查询）辅助工具.
http://www.cnblogs.com/jianyi0115/archive/2008/02/15/1070158.html
Code
using System;
using System.Collections.Generic;
using System.Web.UI;
using System.Web.UI.WebControls.WebParts;
namespace MainPage
{
public abstract class BaseSPWebPart : WebPart
{
private bool _EnableShowErrorMessage = true;
private IList<Exception> _Exceptions = new List<Exception>();
protected BaseSPWebPart()
{
}
protected void AddHtml(string html)
{
LiteralControl child = new LiteralControl
{
EnableViewState = false,
Text = html
};
this.Controls.Add(child);
}
protected void AddHtml(string html, Control ctl)
{
LiteralControl child = new LiteralControl
{
EnableViewState = false,
Text = html
};
ctl.Controls.Add(child);
}
protected string GeyShowToolPanelScript()
{
return ("MSOTlPn_ShowToolPane2Wrapper('Edit','129','" + this.ID + "')");
}
protected override void OnUnload(EventArgs e)
{
base.OnUnload(e);
}
protected void RegisterError(Exception ex)
{
this._Exceptions.Add(ex);
}
protected void RegisterShowToolPanelControl(string msg1, string msg2, string msg3)
{
LiteralControl child = new LiteralControl
{
Text = "<P><DIV class=\"UserGeneric\">" + msg1 + "<A HREF=\"javascript:" + this.GeyShowToolPanelScript() + "\">" + msg2 + "</A>" + msg3 + "</DIV></P>"
};
this.Controls.Add(child);
}
protected override void RenderContents(HtmlTextWriter writer)
{
base.RenderContents(writer);
this.RenderErrors(writer);
}
protected void RenderError(Exception ex, HtmlTextWriter w)
{
if (this._EnableShowErrorMessage)
{
w.Write(ex.Message);
w.Write("<br/>");
w.Write(ex.StackTrace);
w.Write("<br/>");
if (ex.InnerException != null)
{
this.RenderError(ex.InnerException, w);
}
}
else
{
w.Write("鍙戠敓閿欒");
}
}
protected void RenderErrors(HtmlTextWriter w)
{
if (this._EnableShowErrorMessage && (this._Exceptions.Count != 0))
{
foreach (Exception exception in this._Exceptions)
{
w.Write(exception.Message);
w.Write("<br/>");
w.Write(exception.StackTrace);
w.Write("<br/>");
}
this._Exceptions.Clear();
}
}
[WebBrowsable, Personalizable(PersonalizationScope.Shared)]
public bool EnableShowErrorMessage
{
get
{
return this._EnableShowErrorMessage;
}
set
{
this._EnableShowErrorMessage = value;
}
}
}
}
using CodeArt.SharePoint.CamlQuery;
public interface ICamlProvider
{
CamlExpression QueryExpression { get; }
}
下面的代码是一个查询的webpart，列表开启了访问群体控制，使得用户进入显示列表项页面的时候看到自己可以看到的列表项，要把过滤条件写在
createchildcontrols方法中才可以实现，这个我实验了一个星期啊，
下面的图示为管理员进入列表之后看到的列表项
下面的图示为普通用户进入列表之后的查询界面和看到的列表项，用户所属的sharepoint用户组为“开发部”
Code
using System;
using System.Runtime.InteropServices;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Serialization;
using System.Xml;
using System.Collections.Generic;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;
using Microsoft.SharePoint.WebPartPages;
using CodeArt.SharePoint.CamlQuery;
namespace MainPage
{
[Guid("03580f1e-5fa4-467b-b7e9-3a4caa0563a1")]
public class VirusSmartQueryWebPart : System.Web.UI.WebControls.WebParts.WebPart
{
private QueryField _bulletinTitle;
private QueryField _bulletinContent;
private QueryField _bulletinReleaseBeginDT;
private QueryField _bulletinReleaseEndDT;
private QueryField _bulletinExpireBeginDT;
private QueryField _bulletinExpireEndDT;
private QueryField _bulletinTargetTo;
private Table table = null;
private TextBox bulletinTitle = null;
private TextBox bulletinContent = null;
private DateTimeControl bulletinReleaseDTBegin = null;
private DateTimeControl bulletinExpireDTBegin = null;
private Button btnQuery = null;
private DateTimeControl bulletinReleaseDTEnd = null;
private DateTimeControl bulletinExpireDTEnd = null;
private ICamlProvider _CamlProvider;
private string _LayoutControlPath = "";
/// <summary>
/// 过滤条件表达式
/// </summary>
private CamlExpression _camlExpression;
private ViewToolBar _toolbar = null;
private ListViewWebPart _lvwp = null;
private SPView _spview = null;
/// <summary>
/// 当前用户所在的SharePoint用户组
/// </summary>
private List<string> currUserGroups = null;
/// <summary>
/// 当前用户是否公告管理员
/// </summary>
private bool IsBulletinAdmin = false;
public VirusSmartQueryWebPart()
{
_spview = SPContext.Current.List.DefaultView;
addCurrentUserGroup();
isBulletinAdmin();
}
/// <summary>
/// 将当前用户所在的用户组添加到currUserGroup集合
/// </summary>
private void addCurrentUserGroup()
{
currUserGroups = new List<string>();
currUserGroups.Clear();
SPGroupCollection groups = SPContext.Current.Web.CurrentUser.Groups;
foreach (SPGroup g in groups)
{
currUserGroups.Add(g.Name);
}
}
/// <summary>
/// 判断当前用户是否公告管理员
/// </summary>
/// <returns></returns>
private void isBulletinAdmin()
{
if (currUserGroups.Count > 0)
{
foreach (string s in currUserGroups)
{
if (s.Equals("公告管理员"))
{
IsBulletinAdmin = true;
break;
}
}
}
}
private void ChangeSchemaXmlQuery(XmlDocument doc, string query)
{
if (!string.IsNullOrEmpty(query))
{
string innerQuery = this.GetInnerQuery(query);
if (innerQuery != "")
{
XmlNode node = doc.DocumentElement.SelectSingleNode("Query");
XmlNode oldChild = node.SelectSingleNode("Where");
if (oldChild != null)
{
node.RemoveChild(oldChild);
}
XmlNode newChild = doc.CreateElement("Where");
newChild.InnerXml = innerQuery;
node.AppendChild(newChild);
doc.DocumentElement.SelectSingleNode("ViewEmpty").InnerXml = "<HTML><![CDATA[<font color='red'><b>AA Say:未找到符合查询条件的记录</b></font>]]></HTML>";
}
}
}
protected override void CreateChildControls()
{
base.CreateChildControls();
_bulletinTargetTo = new QueryField(SPContext.Current.List.Fields["目标访问群体"].InternalName);
if (!IsBulletinAdmin)
{
_camlExpression = _bulletinTargetTo.Contains(SPContext.Current.Web.CurrentUser.Groups[0].Name);
}
if (_camlExpression != null)
{
this.SetCurrentListViewSchemaQuery(CamlBuilder.Where(_camlExpression));
}
if (table != null)
{
this.Controls.Add(table);
}
else
{
createTable();
this.Controls.Add(table);
}
}
private string GetInnerQuery(string q)
{
XmlDocument document = new XmlDocument();
document.LoadXml(q);
return document.DocumentElement.InnerXml;
}
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
this.EnableViewState = true;
this.EnsureChildControls();
}
/// <summary>
/// 创建查询界面布局
/// </summary>
private void createTable()
{
table = new Table();
TableRow tr1 = new TableRow();
TableCell cell11 = new TableCell();
cell11.Text = "公告标题";
tr1.Cells.Add(cell11);
TableCell cell12 = new TableCell();
bulletinTitle = new TextBox();
bulletinTitle.ID = "bulletinTitle";
bulletinTitle.Text = "";
cell12.Controls.Add(bulletinTitle);
tr1.Cells.Add(cell12);
TableCell cell13 = new TableCell();
cell13.Text = "公告发布时间";
tr1.Cells.Add(cell13);
TableCell cell14 = new TableCell();
bulletinReleaseDTBegin = new DateTimeControl();
bulletinReleaseDTBegin.ID = "bulletinReleaseDT";
bulletinReleaseDTBegin.DateOnly = true;
cell14.Controls.Add(bulletinReleaseDTBegin);
tr1.Cells.Add(cell14);
TableCell cell15 = new TableCell();
cell15.Text = "公告过期时间";
tr1.Cells.Add(cell15);
TableCell cell16 = new TableCell();
bulletinExpireDTBegin = new DateTimeControl();
bulletinExpireDTBegin.DateOnly = true;
bulletinExpireDTBegin.ID = "bulletinExpireDTBegin";
cell16.Controls.Add(bulletinExpireDTBegin);
tr1.Cells.Add(cell16);
TableCell cell17 = new TableCell();
btnQuery = new Button();
btnQuery.ID = "btnQuery";
btnQuery.Text = "查询";
btnQuery.Click += new EventHandler(btnQuery_Click);
cell17.Controls.Add(btnQuery);
tr1.Cells.Add(cell17);
table.Rows.Add(tr1);
TableRow tr2 = new TableRow();
TableCell cell21 = new TableCell();
cell21.Text = "公告内容";
tr2.Cells.Add(cell21);
TableCell cell22 = new TableCell();
bulletinContent = new TextBox();
bulletinContent.ID = "bulletinContent";
bulletinContent.Text = "";
cell22.Controls.Add(bulletinContent);
tr2.Cells.Add(cell22);
TableCell cell23 = new TableCell();
cell23.Text = "到";
tr2.Cells.Add(cell23);
TableCell cell24 = new TableCell();
bulletinReleaseDTEnd = new DateTimeControl();
bulletinReleaseDTEnd.ID = "bulletinReleaseDTEnd";
bulletinReleaseDTEnd.DateOnly = true;
cell24.Controls.Add(bulletinReleaseDTEnd);
tr2.Cells.Add(cell24);
TableCell cell25 = new TableCell();
cell25.Text = "到";
tr2.Cells.Add(cell25);
TableCell cell26 = new TableCell();
bulletinExpireDTEnd = new DateTimeControl();
bulletinExpireDTEnd.DateOnly = true;
bulletinExpireDTEnd.ID = "bulletinExpireDTEnd";
cell26.Controls.Add(bulletinExpireDTEnd);
tr2.Cells.Add(cell26);
TableCell cell27 = new TableCell();
cell27.Text = "";
tr2.Cells.Add(cell27);
table.Rows.Add(tr2);
}
/// <summary>
/// 单击查询按钮
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void btnQuery_Click(object sender, EventArgs e)
{
_bulletinTitle = new QueryField("Title");
_bulletinContent = new QueryField(List.Fields["公告内容"].InternalName);
_bulletinReleaseBeginDT = new QueryField(List.Fields["公告发布时间"].InternalName);
_bulletinReleaseEndDT = new QueryField(List.Fields["公告发布时间"].InternalName);
_bulletinExpireBeginDT = new QueryField(List.Fields["公告过期时间"].InternalName);
_bulletinExpireEndDT = new QueryField(List.Fields["公告过期时间"].InternalName);
//throw new NotImplementedException();
if (!string.IsNullOrEmpty(bulletinTitle.Text))
{
if (_camlExpression == null)
{
_camlExpression = _bulletinTitle.Contains(bulletinTitle.Text.Trim());
}
else
{
_camlExpression = _camlExpression && _bulletinTitle.Contains(bulletinTitle.Text.Trim());
}
}
if (!string.IsNullOrEmpty(bulletinContent.Text))
{
if (_camlExpression == null)
{
_camlExpression = _bulletinContent.Contains(bulletinContent.Text.Trim());
}
else
{
_camlExpression = _camlExpression && _bulletinContent.Contains(bulletinContent.Text.Trim());
}
}
if (!bulletinReleaseDTBegin.IsDateEmpty && !bulletinReleaseDTEnd.IsDateEmpty)
{
if (_camlExpression == null)
{
_camlExpression = _bulletinReleaseBeginDT.MoreEqual(bulletinReleaseDTBegin.SelectedDate) && _bulletinReleaseEndDT.LessEqual(bulletinReleaseDTEnd.SelectedDate);
}
else
{
_camlExpression = _camlExpression && _bulletinReleaseBeginDT.MoreEqual(bulletinReleaseDTBegin.SelectedDate) && _bulletinReleaseEndDT.LessEqual(bulletinReleaseDTEnd.SelectedDate);
}
}
if (!bulletinExpireDTBegin.IsDateEmpty && !bulletinExpireDTEnd.IsDateEmpty)
{
if (_camlExpression == null)
{
_camlExpression = _bulletinExpireBeginDT.MoreEqual(bulletinExpireDTBegin.SelectedDate) && _bulletinExpireEndDT.LessEqual(bulletinExpireDTEnd.SelectedDate);
}
else
{
_camlExpression = _camlExpression && _bulletinExpireBeginDT.MoreEqual(bulletinExpireDTBegin.SelectedDate) && _bulletinExpireEndDT.LessEqual(bulletinExpireDTEnd.SelectedDate);
}
}
if (QueryExpression != null)
{
this.SetCurrentListViewSchemaQuery(CamlBuilder.Where(QueryExpression));
}
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
}
/// <summary>
/// 添加ViewToolBar
/// </summary>
private void addViewToolbar()
{
_toolbar = new ViewToolBar();
SPContext context = SPContext.GetContext(this.Context, _spview.ID, SPContext.Current.List.ID, SPContext.Current.Web);
_toolbar.RenderContext = context;
Controls.Add(_toolbar);
}
/// <summary>
/// 添加ListViewWebPart
/// </summary>
private void addListViewWebPart()
{
_lvwp = new ListViewWebPart();
_lvwp.ListName = SPContext.Current.List.ID.ToString("B").ToUpper();
_lvwp.ViewGuid = _spview.ID.ToString("B").ToUpper();
_lvwp.ViewType = ViewType.Html;
Controls.Add(_lvwp);
}
private void SetCurrentListViewSchemaQuery(string qxml)
{
if (!string.IsNullOrEmpty(qxml))
{
string strB = "{" + this.List.ID.ToString() + "}";
foreach (System.Web.UI.WebControls.WebParts.WebPart part in base.Zone.WebParts)
{
if (part is ListViewWebPart)
{
ListViewWebPart part2 = (ListViewWebPart)part;
if (string.Compare(part2.ListName, strB, true) != 0)
{
continue;
}
if (string.IsNullOrEmpty(qxml))
{
part2.ListViewXml = this.List.Views[new Guid(part2.ViewGuid)].HtmlSchemaXml;
}
else
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(part2.ListViewXml);
this.ChangeSchemaXmlQuery(doc, qxml);
part2.ListViewXml = doc.InnerXml;
}
return;
}
}
}
}
[Personalizable(PersonalizationScope.Shared), WebBrowsable]
public string LayoutControlPath
{
get
{
return this._LayoutControlPath;
}
set
{
this._LayoutControlPath = value;
}
}
private SPList List
{
get
{
return SPContext.Current.List;
}
}
public CamlExpression QueryExpression
{
get
{
this.EnsureChildControls();
if (this._camlExpression != null)
{
return this._camlExpression;
}
return null;
}
}
}
}
来源：http://www.cnblogs.com/virusswb/archive/2009/01/14/1375682.html