selectedindexchanged事件未在单选按钮列表上触发

Question

我在单选按钮列表上应用了onselectedindexchangedevent，但当我单击

  radiobuttton  ,radiobutton is not selecting for a movement, it select,and then

  deselect .I also set postback=true.but it is not firing ..

**.aspx** 

      <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false">
                    <Columns>
                    <asp:TemplateField>
                    <ItemTemplate>
                        <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
                        <asp:RadioButtonList ID="RadioButtonList1" runat="server"   
    AutoPostBack="true"RepeatDirection="Horizontal"OnSelectedIndexChanged="clicked"> 

                    <asp:ListItem Value="agree" Selected="True" ></asp:ListItem>
                       <asp:ListItem Value="agree"></asp:ListItem>
                        </asp:RadioButtonList>

                    </ItemTemplate>

                    </asp:TemplateField>

                    </Columns>
                    </asp:GridView>


    **.aspx.cs**



     public void clicked(object sender, EventArgs arg)
        {

            test t = new test();
            questiondal d = new questiondal();

            GridViewRow row= (( RadioButtonList  )sender).NamingContainer as GridViewRow;
      RadioButtonList list= (RadioButtonList )row.FindControl("Radio");
    list.SelectedIndexChanged();
     Label4.Text= list.SelectedValue;




        }

Answer 1

确保回发发生时网格视图没有重新加载。确保您的代码如下所示：

protected void Page_Load(object sender, EventArgs e)
{
    If(!IsPostBack)
    {
       GridView1.DataSource = dataTable;
       GridView1.DataBind();
    }
}

当单选按钮事件被激发时，Page_Load事件被再次激发，但是网格不会刷新，Clicked方法将被激发。

Answer 2

尝试更改您的代码：

RadioButtonList list= (RadioButtonList )row.FindControl("Radio");

至：

RadioButtonList list= (RadioButtonList )row.FindControl("RadioButtonList1");

因为在您的网格视图中没有名为“Radio”的控件。希望这能解决你的问题。