datalist中的获得某个控件的值

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前台           

          <td colspan="2">
                    <asp:DataList ID="DataList1" runat="server" RepeatColumns="6"
                        onitemcommand="DataList1_ItemCommand">
                        <ItemTemplate>
                            <table class="Tb_Dl_Item">
                                <tr>
                                    <td align="center">
                                        <img class="Img" border="0" src='../../uploadfile/product/<%# Eval("cInvPicUrl") %>'
                                            width="80px" height="80px" />
                                    </td>
                                </tr>
                                <tr>
                                   <td>
                                       <asp:Label ID="PicColorName" runat="server" Text='<%# Eval("cColorname") %>'></asp:Label>                                  
                                   </td>
                                </tr>
                                <tr>  
                                <td align="center">
                                      <asp:Label ID="LInvWCode" runat="server" Visible="false"  Text='<%# Eval("cInvWCode") %>'></asp:Label> 
                                      <asp:DropDownList ID="ColorDropList" runat="server"></asp:DropDownList>
                                      <asp:LinkButton ID="UpdateColor" runat="server" Text="修改" OnCommand="PicUpdate" CommandName="UpdatePic" CommandArgument='<%# Eval("cinvpiccode") %>'></asp:LinkButton> 
                                 </td>
                               </tr>
                                <tr>  
                                <td align="center">
                                       <asp:LinkButton ID="DelPic" runat="server" Text="删除" OnCommand="PicDel" OnClientClick="return Del();" CommandArgument='<%# Eval("cinvpiccode")%>'></asp:LinkButton> 
                                 </td>
                               </tr>
                            </table>
                        </ItemTemplate>
                    </asp:DataList>
                </td>

 

 

 

后台

protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e)
    {

        if (e.CommandName == "UpdatePic")
        {
            int index = (int)e.Item.ItemIndex;
            DropDownList ddl = (DropDownList)DataList1.Items[index].FindControl("ColorDropList");
            string colorcode = ddl.SelectedValue.ToString();
            Response.Write("colorcode");
            string m_Sql = "update  tb_inventoryPic set cColorCode ='" + colorcode + "'  where cinvpicCode='" + WCodeUpdate.Text + "' ";
            Dal m_Dal = new Dal();
            bool m_Ret = m_Dal.ExecuteSql(m_Sql);

            if (m_Ret)
            {
                Common.AlertMessage("修改成功!", "WebProductPic.aspx?invwcode=" + titletxt.Text + "");
            }
            else
            {
                Common.AlertMessage("修改失败!", "WebProductPic.aspx?invwcode=" + titletxt.Text + "");
            }
        }
    }

 

 

 

ps:最近非常忙,从此以后会多写点自己的心得的.....

 

ps: 相关资料点滴

 

CommandArgument= <%# "参数1&"+"参数2&"+DataBinder.Eval(Container.DataItem,"id","{0}") % >
string tempId = e.CommandArgument.ToString();


 开发网站过程中遇到LinkButton需要传两个参数的问题,经查互联网,现已成功:

<asp:LinkButton ID="lbEdit" runat="server" Text="通过审核" CommandArgument='<%# Eval("UserName")+","+Eval("yhlx")%>'
                                                OnCommand="LinkButtonClick" ForeColor="blue"></asp:LinkButton>

 

CS:

  protected void LinkButtonClick(object sender, CommandEventArgs e)
    {

        string[] ab = e.CommandArgument.ToString().Split(',');
        string UserName=ab[0];
        string yhlx=ab[1];

这样就可以取出值了。


DropDown1.Items.FindByValue(value).Selected=true  

 

我在GridView中会弄`但到DataList中就不会  
  在GridView中的   ID   也是   int   的`  
   
  下面是我在GridView中的部分代码:  
  GridViewRow   row   =   ProductGird   .SelectedRow   ;  
  int   ID   =   (int)ProductGird.SelectedDataKey.Value;  
  string   Name   =   row.Cells[1].Text;  
   
  但不知道到了Datalist   中要怎么调用?GridView运行正常


通常是这样:  
   
  1.把<%#   Eval("Name")%>换成Label控件:  
  <asp:Label   id="lab"   ...   Text='<%#   Eval("Name")%>'></asp:Label>  
   
  2.把"购买"按钮的CommandName属性设一个值,如:  
  <asp:Button   ...   CommandName="buy"></asp:Button>  
   
  3.为"购买"按钮添加事件,即在DataList的ItemCommand事件中添加:  
  if(e.CommandName   ==   "buy")  
  {  
          //此处仅示例如何获取绑定值  
          Label   lab   =   (Label)e.Item.FindControl("lab");  
          if(lab   !=   null)  
                  Response.Write(lab.Text);  
  }  

 

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