为List配置一个搜索按钮

查询前的List首页，只有一个cusotmer

customer下面有个Project文件夹和Cusotmer Complaint文件

其中Customer Complaint.txt文件是有多个属性的

现在开始针对文档库中所有的文件 和文件夹进行模糊查询

前段代码

<% @ Control Language = " C# "  AutoEventWireup = " true "  CodeBehind = " SearchList.ascx.cs "  Inherits = " MySharePointDev.Public.SearchList "   %>
< table >
     < tr >
         < td >
             < asp:Label  ID ="labKeyWord"  runat ="server"  Text ="KeyWord:"  Font-Bold ="True"   ></ asp:Label >
             < asp:TextBox  ID ="tbKeyWord"  runat ="server"   ></ asp:TextBox >
             < asp:Button  ID ="btnSearch"  runat ="server"  onclick ="btnSearch_Click"  
                Text ="Search"   />
         </ td >
     </ tr >
</ table >

 

后端代码

using  System;
using  System.Collections.Generic;
using  System.Linq;
using  System.Web;
using  System.Web.UI;
using  System.Web.UI.WebControls;
using  Microsoft.SharePoint;
using  Microsoft.SharePoint.WebPartPages;
using  System.Xml;
using  System.Web.UI.WebControls.WebParts;

namespace  MySharePointDev.Public
{
     public   partial   class  SearchList : BaseSPWebPart
    {
         private   string  _QueryFields  =   " Title; " ;
        [Personalizable(PersonalizationScope.Shared)]
        [WebBrowsable]
        [WebDisplayName( " 查询的字段显示名，以分号分隔开 " )]
         public   string  QueryFields
        {
             get  
            {
                 if  (_QueryFields.EndsWith( " ; " )) // 防止以;结束
                {
                     return  _QueryFields.Substring( 0 , _QueryFields.Length  -   2 );
                }
                 else
                {
                     return  _QueryFields;
                }
            }
             set  { _QueryFields  =  value; }
        }


         private  SPList List
        {
             get
            {
                 return  SPContext.Current.List;
            }
        }

         protected   void  Page_Load( object  sender, EventArgs e)
        {
             // this.ExportMode = WebPartExportMode.All;
            tbKeyWord.ToolTip  =   " Please input:  "   +  QueryFields;
        }

         ///   <summary>
         ///  search
         ///   </summary>
         ///   <param name="sender"></param>
         ///   <param name="e"></param>

         protected   void  btnSearch_Click( object  sender, EventArgs e)
        {
             if  ( this .tbKeyWord.Text  !=   "" )
            {
                 string [] fields  =  QueryFields.Split( ' ; ' );
                 string  cmal  =   "" ;
                 foreach  ( string  field  in  fields)
                {
                     if  (cmal  ==   "" )  // 第一个参数
                    {
                        cmal  =   string .Format( @" <Contains>
                                                              <FieldRef Name='{0}' />
                                                              <Value Type='{1}'>{2}</Value>
                                                           </Contains>
                                                            " , List.Fields[field].InternalName, List.Fields[field].Type.ToString(),  this .tbKeyWord.Text.ToString());
                    }
                     else
                    {
                        cmal  =   " <Or> "   +  cmal  +   string .Format( @" <Contains>
                                                              <FieldRef Name='{0}' />
                                                              <Value Type='{1}'>{2}</Value>
                                                           </Contains></Or>
                                                            " , List.Fields[field].InternalName, List.Fields[field].Type.ToString(),  this .tbKeyWord.Text.ToString());
                    }
                    
                }
                cmal  =   " <Where> "   +  cmal  +   " </Where> " ;
                 this .SetCurrentListViewSchemaQuery(cmal);
                
            }

        }

         ///   <summary>
         ///  设置当前list的视图 schema query 
         ///   </summary>
         ///   <param name="cmal"></param>
         private   void  SetCurrentListViewSchemaQuery( string  cmal)
        {
             if  ( ! string .IsNullOrEmpty(cmal))
            {
                 string  str  =   " { "   +   this .List.ID.ToString()  +   " } " ;

                ControlCollection cc  =   this .Page.Controls;
                GetControls( ref   cc, str, cmal);


            }
        }
         ///   <summary>
         ///  遍历所有页面中所有控件
         ///   </summary>
         ///   <param name="cs"> 页面控件集 </param>
         ///   <param name="str"></param>
         ///   <param name="cmal"></param>
         private   void  GetControls( ref  ControlCollection cs,  string  str,  string  cmal)
        {
             foreach  (Control webPart  in  cs)
            {
                 if  (webPart.HasControls())
                {
                    ControlCollection cc  =  webPart.Controls;
                    GetControls( ref   cc, str, cmal);
                }

                 if  (webPart  is  ListViewWebPart)
                {
                    ListViewWebPart listViewWebPart  =  (ListViewWebPart)webPart;
                     if  ( string .Compare(listViewWebPart.ListName, str,  true )  !=   0 )
                    {
                         continue ;
                    }

                     if  ( string .IsNullOrEmpty(cmal))
                    {
                        listViewWebPart.ListViewXml  =   this .List.Views[ new  Guid(listViewWebPart.ViewGuid)].HtmlSchemaXml;

                    }
                     else
                    {
                         // 申明个新的XmlDocument，将listViewWebPart的ListViewXml装载进去
                        XmlDocument xmlDocument  =   new  XmlDocument();
                        xmlDocument.LoadXml(listViewWebPart.ListViewXml);

                         // 用cmal替换掉原有的查询语句
                         this .ChangeSchemaXmlCaml(xmlDocument, cmal);
                        listViewWebPart.ListViewXml  =  xmlDocument.InnerXml;
                    }
                }
            }
        }

         ///   <summary>
         ///  move where 去除外部的Where和/Where
         ///   </summary>
         ///   <param name="q"></param>
         ///   <returns></returns>
         private   string  GetInnerQuery( string  q)
        {
            XmlDocument docuemnt  =   new  XmlDocument();
            docuemnt.LoadXml(q);
             return  docuemnt.DocumentElement.InnerXml;
        }
         ///   <summary>
         ///  change schema xml query 
         ///   </summary>
         ///   <param name="xmlDocument"></param>
         ///   <param name="query"></param>
         private   void  ChangeSchemaXmlCaml(XmlDocument xmlDocument,  string  query)
        {
             if  ( ! string .IsNullOrEmpty(query))
            {
                 string  innerXml  =   this .GetInnerQuery(query);
                 if  (innerXml  !=   "" )
                {
                     // 获得Query部分的XmlNode
                    XmlNode node  =  xmlDocument.DocumentElement.SelectSingleNode( " Query " );
                    XmlNode oldChild  =  node.SelectSingleNode( " Where " );

                     // 如果有Where，去除它
                     if  (oldChild  !=   null )
                    {
                        node.RemoveChild(oldChild);
                    }
                     // 新建一个Where，并将我们的query的主体内容赋值给其InnerXml，并在QuerNode中添该Node
                    XmlNode newChild  =  xmlDocument.CreateElement( " Where " );
                    newChild.InnerXml  =  innerXml;
                    node.AppendChild(newChild);

                     // 将搜索文件的类型修改为list中的所有文件和文件夹，默认为只搜索当前目录下的文件
                     if  (xmlDocument.DocumentElement.Attributes[ " Scope " ]  ==   null )
                    {
                        XmlAttribute attScope  =  xmlDocument.CreateAttribute( " Scope " );
                        attScope.Value  =   " RecursiveAll " ;
                        xmlDocument.DocumentElement.Attributes.Append(attScope);
                    }
                     else
                    {
                        xmlDocument.DocumentElement.Attributes[ " Scope " ].Value  =   " RecursiveAll " ;
                    }
                        
                        
                     // 替换XML中的ViewEmpty部分，该部分显示没有数据的时候的内容
                    xmlDocument.DocumentElement.SelectSingleNode( " ViewEmpty " ).InnerXml  =   " <HTML><![CDATA[<font color='red'><b>No Results match keyword!</b></font>]]></HTML> " ;
                }

            }
        }


    }
}