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datalist嵌套制作树状结构非常好的东西!

Posted on 2006-07-06 18:44  小鱼儿  阅读(765)  评论(2编辑  收藏  举报

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

namespace sdit
{
 /// <summary>
 ///  marchant_search_new的摘要说明。
 /// </summary>
 public class marchant_search_new : System.Web.UI.Page
 {
  private SqlConnection Sqlconn;
  private SqlDataAdapter da;
  protected System.Web.UI.WebControls.DataList dlst;
  protected System.Web.UI.WebControls.DataList dlstBig;
  protected System.Web.UI.WebControls.Label lblBigname;
  protected System.Web.UI.WebControls.TextBox txtBigID1;
  protected sdit.sjkweb.sqlb Sqlb1 =new sdit.sjkweb.sqlb();
  
 
  private void Page_Load(object sender, System.EventArgs e)
  {
   if(!IsPostBack)
   {
    DlstbigBind();
       DlstBind(Request["BigType_ID"]);
       txtBigID1.Text=Request["BigType_ID"];
    Sqlb1.BindList1(txtBigID1.Text,Request["SmallType_ID"],Request["bbid"],"","");
   
   }
   // 在此处放置用户代码以初始化页面
  }
  private void DlstbigBind()
  { 
   string strqg="Select * from BigType";
   this.Sqlconn=new SqlConnection(database.conStr);
   this.da=new SqlDataAdapter(strqg,this.Sqlconn);
   DataSet dsqg=new DataSet();
   this.da.Fill(dsqg,"temp");
   DataTable dtqg=new DataTable();
   dtqg=dsqg.Tables[0];
   this.dlstBig.DataSource=dtqg;
   this.dlstBig.DataBind();
   DlstBind(dtqg.Rows[0].ItemArray[0].ToString());
   this.lblBigname.Text=dtqg.Rows[0].ItemArray[1].ToString();
  }
  private void DlstBind(string bigid)
  { 
   string strqg="Select SmallType_ID as aa ,SmallType_Name as b from SmallType where BigType_ID='" + bigid + "'";
   this.Sqlconn=new SqlConnection(database.conStr);
   this.da=new SqlDataAdapter(strqg,this.Sqlconn);
   DataSet dsqg=new DataSet();
   this.da.Fill(dsqg,"temp");
   DataTable dtqg=new DataTable();
   dtqg=dsqg.Tables[0];
   this.dlst.DataSource=dtqg;
   this.dlst.DataBind();
  }

  private void Dlst2Bind(DataList dlst,string strID)
  { 
   string strqg="Select id as aa ,name as b from bankbrand where smalltype_ID='"+ strID +"'";
   this.Sqlconn=new SqlConnection(database.conStr);
   this.da=new SqlDataAdapter(strqg,this.Sqlconn);
   DataSet dsqg=new DataSet();
   this.da.Fill(dsqg,"temp");
   DataTable dtqg=new DataTable();
   dtqg=dsqg.Tables[0];
   dlst.DataSource=dtqg;
   dlst.DataBind();
  }
  #region Web 窗体设计器生成的代码
  override protected void OnInit(EventArgs e)
  {
   ////程序设计:小鱼儿
   //QQ:313116937
   // 联系方式:313116937@163.com
   // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
   //
   InitializeComponent();
   base.OnInit(e);
  }
  
  /// <summary>
  /// 设计器支持所需的方法 - 不要使用代码编辑器修改
  /// 此方法的内容。
  /// </summary>
  private void InitializeComponent()
  {   
   this.dlstBig.ItemCommand += new System.Web.UI.WebControls.DataListCommandEventHandler(this.dlstBig_ItemCommand);
   this.dlstBig.ItemDataBound += new System.Web.UI.WebControls.DataListItemEventHandler(this.dlstBig_ItemDataBound);
   this.dlst.ItemCreated += new System.Web.UI.WebControls.DataListItemEventHandler(this.dlst_ItemCreated);
   this.dlst.ItemCommand += new System.Web.UI.WebControls.DataListCommandEventHandler(this.dlst_ItemCommand);
   this.dlst.ItemDataBound += new System.Web.UI.WebControls.DataListItemEventHandler(this.dlst_ItemDataBound);
   this.Load += new System.EventHandler(this.Page_Load);

  }
  #endregion

 

  private void dlst_ItemDataBound(object sender, System.Web.UI.WebControls.DataListItemEventArgs e)
  {
   if (e.Item.ItemType==ListItemType.Item || e.Item.ItemType==ListItemType.AlternatingItem)
   {
    DataList dlstChild =(DataList)e.Item.FindControl("dlstChild");
    TextBox txtID = (TextBox)e.Item.FindControl("txtID");
    Dlst2Bind(dlstChild,txtID.Text );
    //LinkButton LinkButton1=(LinkButton)e.Item.FindControl("LinkButton1");
    //LinkButton1.Attributes.Add("onclick","window.open('http://www.hao123.com');return false;");
   }
   DataList DataList1 =(DataList)e.Item.FindControl("DataList1");
           

  }

  private void dlst_ItemCreated(object sender, System.Web.UI.WebControls.DataListItemEventArgs e)
  {   
   if (e.Item.ItemType==ListItemType.Item || e.Item.ItemType==ListItemType.AlternatingItem)
   {
    DataList dlstChild =(DataList)e.Item.FindControl("dlstChild");
    dlstChild.ItemDataBound += new System.Web.UI.WebControls.DataListItemEventHandler(this.dlstChild_ItemDataBound);
    dlstChild.ItemCommand += new System.Web.UI.WebControls.DataListCommandEventHandler(this.dlstChild_ItemCommand);
   }
  }
  private void dlstChild_ItemDataBound(object sender, System.Web.UI.WebControls.DataListItemEventArgs e)
  {
   if (e.Item.ItemType==ListItemType.Item || e.Item.ItemType==ListItemType.AlternatingItem)
   {
    //LinkButton LinkButton1=(LinkButton)e.Item.FindControl("LinkButton2");
    //LinkButton1.Attributes.Add("onclick","window.open('http://www.sina.com')");
   }

  }

  private void dlst_ItemCommand(object source, System.Web.UI.WebControls.DataListCommandEventArgs e)
  {
           
   if(e.CommandName=="imagebutton1")
   {
    DataList dlstChild =(DataList)e.Item.FindControl("dlstChild");
    dlstChild.Visible=!dlstChild.Visible;
    ImageButton img1 =(ImageButton)e.Item.FindControl("img1");
    if(dlstChild.Visible)
    {
     img1.ImageUrl="images/m_list_oo.gif";
    }
    else
    {
     img1.ImageUrl="images/m_list_pp.jpg";
    }
   }
    if(e.CommandName=="lbt1")
    {
     DataList dlstChild=(DataList)e.Item.FindControl("dlstChild");
        LinkButton lbt1=(LinkButton)e.Item.FindControl("lbt1");
     TextBox txtID =(TextBox) e.Item.FindControl("txtID");
         Sqlb1.BindList1(txtBigID1.Text,txtID.Text,"","","");
    }
      
     
  }
  private void dlstChild_ItemCommand(object source, System.Web.UI.WebControls.DataListCommandEventArgs e)
  {
//   if(e.CommandName=="LinkButton2")
//   {  
//    LinkButton LinkButton2=(LinkButton)e.Item.FindControl("LinkButton2");
//    TextBox txtchid=(TextBox)e.Item.FindControl("txtchid");
//    Sqlb1.BindList1("","",txtchid.Text,"","");
//    LinkButton LinkButton2=(LinkButton)LinkButton2.Parent.Parent.FindControl("LinkButton2");
//          string sdf1="marchant_search_new.aspx?pid=txtchid.Text";     
//   }
  }


  private void dlstBig_ItemCommand(object source, System.Web.UI.WebControls.DataListCommandEventArgs e)
  {
   if(e.CommandName=="lkbBIGName")
   {
    TextBox txtbigid=(TextBox)e.Item.FindControl("txtbigid");
    LinkButton lkbBIGName = (LinkButton) e.Item.FindControl("lkbBIGName"); 
    DlstBind(txtbigid.Text);
    this.lblBigname.Text=lkbBIGName.Text;
    txtBigID1.Text=txtbigid.Text; 
   }
  }

  private void dlstBig_ItemDataBound(object sender, System.Web.UI.WebControls.DataListItemEventArgs e)
  {
   if (e.Item.ItemType==ListItemType.Item || e.Item.ItemType==ListItemType.AlternatingItem)
   {
    
    LinkButton lkbBIGName =(LinkButton)e.Item.FindControl("lkbBIGName");
    lkbBIGName.Attributes.Add("onclick","chgCol('"+lkbBIGName.ClientID + "');");
    
   }
   
   
  }
 }
}

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