Question

我在radiobuttonlist上申请onselectedindexchangedevent，但是当我点击
时 radiobuttton，radiobutton不选择运动，它选择，然后
取消选择。我还设置了postback = true。但它没有触发..

**.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

确保在发生回发时不重新加载gridview。确保您的代码是这样的：

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

当触发单选按钮事件时，会再次触发Page_Load事件，但网格不会刷新，并且会触发Clicked方法。

Answer 2

尝试更改您的代码：

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

要：

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

由于您的gridview中没有名为“Radio”的控件。希望这能解决你的问题。

selectedindexchanged事件未在radiobuttonlist上触发

2 个答案: