protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) 
{
  LinkButton linkbutton1 = sender as LinkButton ; 
  int index = (linkbutton1.NamingContainer as GridViewRow).RowIndex;
  string name= GridView1.Rows[index].Cells["Name"].InnerText; 
}

------解决方案--------------------
LinkButton_OnClick

------解决方案--------------------
HTML code
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" DataKeyNames="ID" >
    <Columns>
        <asp:TemplateField>
          <ItemTemplate>
              <asp:LinkButton ID="LinkButton1" runat="server" AutoPostBack="true" 
                  OnClick="LinkButton_OnClick" >                        
            
           </ItemTemplate>
        </asp:TemplateField>               
        <asp:BoundField ShowHeader="true" DataField="ID" HeaderText="ID" />
        <asp:BoundField ShowHeader="true" DataField="name" HeaderText="姓名" />
    </Columns>
</asp:GridView> 
<span>评价：</span>
<asp:TextBox ID="SelectedRLText" runat="server" Text=""></asp:TextBox>

------解决方案--------------------

你继承gridview自定义控件里
public event EventHandler BeforeSelectIndexchanged;
       protected override void OnSelectedIndexChanged(EventArgs e)
       {
           BeforeSelectIndexchanged(this, EventArgs.Empty);
           base.OnSelectedIndexChanged(e);
       }
页面使用
 this.YourGridView1.BeforeSelectIndexchanged += new EventHandler(YourGridView1_BeforeSelectIndexchanged);
或者直接在设计试图里添加事件

自定义事件参数参考http://topic.csdn.net/u/20090218/16/18d574da-71ba-42f3-88fe-821b68fb32de.html


------解决方案--------------------
on Button_OnClick
on   text_change