gridView事件示例

GridView事件大全2008年08月20日 星期三 13：43

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using IOIOT.DataControl;

public partial class Admin_LinksOperation : System.Web.UI.Page
{
DCAdmin dcadmin=new DCAdmin();
DCPublic dcpub=new DCPublic();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
GVBind();
}
}

//绑定
private void GVBind()
{
DataTable dt = dcpub.SelectAllTable("Links", "", "", "CreateDate");
GridView1.DataSource = dt.DefaultView;
GridView1.DataBind();
}
//分页,需要设置AllowPaging="true"
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
GVBind();
}

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
GVBind();
}
//取ID值需要设置DataKeyNames="LinkID"
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
int LID = Convert.ToInt32(GridView1.DataKeys[e.RowIndex].Value);
string LinkText = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("Elinktext")).Text;
string LinkIMG = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("Elinkimg")).Text;
string LinkURL = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("Elinkurl")).Text;
try
{
dcadmin.Table_UPDATE("Links","LinkText='" + LinkText + "',LinkImg='" + LinkIMG + "',Address='" + LinkURL + "'", "LinkID=" + LID);
PublichClass.MsgBox("更新成功", this.Page);
}
catch(Exception ex)
{
errmessage.Text="更新失败"+ex.Message;
}
GridView1.EditIndex = -1;
GVBind();
}
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
GVBind();
}
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int LID = Convert.ToInt32(GridView1.DataKeys[e.RowIndex].Value);
try
{
dcadmin.Table_DELETE("Links", "LinkID=" + LID);
errmessage.Text = "删除成功";
PublichClass.MsgBox("删除成功", this.Page);
GVBind();
}
catch (Exception ex)
{
errmessage.Text = "删除失败" + ex.Message;
}
}
//排序,需要设置AllowSorting="true",同时在项里需要设置 SortExpression="LinkID"
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
if ((string)ViewState["Sort"] != e.SortExpression)
{
ViewState["Sort"] = e.SortExpression;
}
else
{
ViewState["Sort"] = e.SortExpression + " " + "DESC";
}
DataTable dt = dcpub.SelectAllTable("Links", "", "", "CreateDate");
dt.DefaultView.Sort = ViewState["Sort"].ToString();
GridView1.DataSource = dt.DefaultView;
GridView1.DataBind();
}
//全选
protected void AllLinkSelect_Click(object sender, EventArgs e)
{
CheckBox chkEbox;
if (AllLinkSelect.Text == "全选")
{
foreach (GridViewRow gvrow in GridView1.Rows)
{
chkEbox = (CheckBox)gvrow.FindControl("chbk");
chkEbox.Checked = true;
}
AllLinkSelect.Text = "取消";
}
else
{
foreach (GridViewRow gvrow in GridView1.Rows)
{
chkEbox = (CheckBox)gvrow.FindControl("chbk");
chkEbox.Checked = false;
}
AllLinkSelect.Text = "全选";
}
}
//删除选择项
protected void LinkDel_Click(object sender, EventArgs e)
{
//删除其中选择项
CheckBox chkbox;
int LID;
string DelStr = "";
#region
try
{
foreach (GridViewRow gridview in GridView1.Rows)
{
chkbox = (CheckBox)gridview.FindControl("chbk");
if (chkbox.Checked == true)
{
LID = Convert.ToInt32(((HiddenField)gridview.FindControl("hfd_linkid")).Value);
DelStr += "LinkID=" + LID + " or ";
//dcadmin.Table_DELETE("News", "NewsID=" + NID);
}
}
if (DelStr.ToString().Trim().Length == 0)
{
errmessage.Text = "没有选择任何项";
PublichClass.MsgBox("没有选择任何项", this.Page);
}
else
{
DelStr = DelStr.Substring(0, DelStr.LastIndexOf("or"));
//删除选中的数据项
dcadmin.Table_DELETE("Links", DelStr);
//errmessage.Text = DelStr;
errmessage.Text = "选择项删除成功！";
PublichClass.MsgBox("选择项删除成功！", this.Page);
GVBind();
}
}
catch (Exception ex)
{
errmessage.Text = "出错了！" + ex.Message;
}
AllLinkSelect.Text = "全选";
#endregion
}
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
int TTID;
if (e.CommandName.ToString() == "topstep")
{
//向上移,Sort+1
if (e.CommandArgument != null && e.CommandArgument.ToString() != "")
{
//errmessage.Text = e.CommandArgument.ToString();
TTID = Convert.ToInt32(GridView1.DataKeys[Convert.ToInt32(e.CommandArgument)].Value);
int NowSort = Convert.ToInt32((dcpub.SelectAllTable("Links", "LinkID=" + TTID, "Sort", "")).Rows[0]["Sort"]);
int UpSort = NowSort + 1;
dcadmin.Table_UPDATE("Links", "Sort=" + UpSort, "LinkID=" + TTID);
DataTable dt = dcpub.SelectAllTable("Links", "", "", "Sort desc");
GridView1.DataSource = dt.DefaultView;
GridView1.DataBind();
}
else
//errmessage.Text = "没有参数";
errmessage.Text = "没有参数";
}
if (e.CommandName.ToString() == "bottomstep")
{
//向下移,Sort-1
errmessage.Text = "22";
}
}
//RowCommand事件需要添加CommandArgument
protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
{
LinkButton totop;
LinkButton tobottom;
if (e.Row.RowType == DataControlRowType.DataRow)
{
totop = (LinkButton)e.Row.FindControl("totop");
tobottom = (LinkButton)e.Row.FindControl("tobottom");
if (totop != null)
{
if (totop.CommandName == "topstep")
totop.CommandArgument = e.Row.RowIndex.ToString();
if (tobottom.CommandName == "bottomstep")
tobottom.CommandArgument = e.Row.RowIndex.ToString();
}
}
}
}