相于Repeater中使用绑定下拉列表一事 .

关于其它控件绑定这一块网上有很多,但发现repeater这一块很少,结合网上知识总结如下:

    1,在repeater上抓取控件及进行数据绑定;

      一般是在数据绑定后,或着是在ItemDataBound事件中来处理,下面介绍两种方法:

 

       第一种在数据手动绑定后用for循环来查找下拉列表控件(其它控件原理一样),

     

private void DateBindView()
 {
     DataSet ds = new DataSet();
     ds = BLL.UserInfoManager.GetList();
     rptContent.DataSource = ds;
     rptContent.DataBind();
     DropDownList dllOperator;
     for (int j = 0; j < this.rptContent.Items.Count; j++)
     {
         dllOperator = (DropDownList)this.rptContent.Items[j].FindControl("dllOperator");
         dllOperator.DataSource = BLL.StateInfoManager.GetList().Tables[0].DefaultView;
         dllOperator.DataTextField = "Remark";
         dllOperator.DataValueField = "stateid";
         dllOperator.DataBind();

         DataRowView rowv = (DataRowView)this.rptContent.Items[j].DataItem;
         //设置初始项
         dllOperator.Items.Add(new ListItem("-Choose-", ""));
         dllOperator.SelectedValue = ds.Tables[0].Rows[j][4].ToString();//获到当前列的状态ID用于绑定下拉列表
     }
 }

<textarea style="DISPLAY: none" class="c-sharp" rows="15" cols="76" name="code"> private void DateBindView() { DataSet ds = new DataSet(); ds = BLL.UserInfoManager.GetList(); rptContent.DataSource = ds; rptContent.DataBind(); DropDownList dllOperator; for (int j = 0; j &lt; this.rptContent.Items.Count; j++) { dllOperator = (DropDownList)this.rptContent.Items[j].FindControl(&quot;dllOperator&quot;); dllOperator.DataSource = BLL.StateInfoManager.GetList().Tables[0].DefaultView; dllOperator.DataTextField = &quot;Remark&quot;; dllOperator.DataValueField = &quot;stateid&quot;; dllOperator.DataBind(); DataRowView rowv = (DataRowView)this.rptContent.Items[j].DataItem; //设置初始项 dllOperator.Items.Add(new ListItem(&quot;-Choose-&quot;, &quot;&quot;)); dllOperator.SelectedValue = ds.Tables[0].Rows[j][4].ToString();//获到当前列的状态ID用于绑定下拉列表 } }</textarea>

    

     第二种有ItemDataBound方法中进行查找下拉列表,并进行当前数据的绑定.这个地方很关键!

   

    

protected void rptContent_ItemDataBound(object sender, RepeaterItemEventArgs e)
   {
       if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
       {
               DropDownList dllOperator = (DropDownList)e.Item.FindControl("dllOperator");

               dllOperator.DataTextField = "Remark";
               dllOperator.DataValueField = "stateid";
               dllOperator.DataSource = BLL.StateInfoManager.GetList().Tables[0].DefaultView;
               //BLL.StateInfoManager.GetList().Tables[0].DefaultView;
               dllOperator.DataBind();
               dllOperator.Items.Add(new ListItem("-Choose-", ""));
               //找到分类Repeater关联的数据项
               DataRowView rowv = (DataRowView)e.Item.DataItem;//获取当前项行数据再去访问那一列.注意坐标索引是从0开始

               dllOperator.SelectedValue =rowv[4].ToString();
       }
   }

<textarea style="DISPLAY: none" class="c-sharp" rows="15" cols="76" name="code"> protected void rptContent_ItemDataBound(object sender, RepeaterItemEventArgs e) { if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) { DropDownList dllOperator = (DropDownList)e.Item.FindControl(&quot;dllOperator&quot;); dllOperator.DataTextField = &quot;Remark&quot;; dllOperator.DataValueField = &quot;stateid&quot;; dllOperator.DataSource = BLL.StateInfoManager.GetList().Tables[0].DefaultView; //BLL.StateInfoManager.GetList().Tables[0].DefaultView; dllOperator.DataBind(); dllOperator.Items.Add(new ListItem(&quot;-Choose-&quot;, &quot;&quot;)); //找到分类Repeater关联的数据项 DataRowView rowv = (DataRowView)e.Item.DataItem;//获取当前项行数据再去访问那一列.注意坐标索引是从0开始 dllOperator.SelectedValue =rowv[4].ToString(); } }</textarea>

 

 

     而前台只需一句代码就OK了

        <asp:DropDownList ID="dllOperator" runat="server"></asp:DropDownList>