Get datakeyvalue/primary key of selected row upon clicking RadioButton inside RadGrid

[Priyanka]

Trying to get the DataKeyValue/Primary key of selected row of RadGrid upon clicking Radiobutton

I tried below code but everytime its returning null in "string key"

<telerik:RadGrid ID="RadGrid1" EnableViewState="false" runat="server" AllowPaging="true" AllowSorting="False" AllowFilteringByColumn="true" GridLines="None" OnInit="RadGrid1_Init" OnDeleteCommand="RadGrid1_DeleteCommand">
        <ItemStyle Wrap="false"></ItemStyle>
         <MasterTableView AllowMultiColumnSorting="true" TableLayout="Fixed" DataKeyNames="Id" ClientDataKeyNames="Id">
                 <Columns>
                        <telerik:GridNumericColumn DataField="Id" HeaderText="Id" HeaderStyle-Width="100px" AllowFiltering="False" FilterControlWidth="50px">
                         <telerik:GridTemplateColumn UniqueName="" HeaderText="Select">
                                <ItemTemplate>
                                        <asp:RadioButton ID="rbdSelect" runat="server" AutoPostBack="true" OnCheckedChanged="rbdSelect_CheckedChanged"></asp:RadioButton>
                                 </ItemTemplate>
                          </telerik:GridTemplateColumn>
                  </Columns>
            </MasterTableView>

protected void rbdSelect_CheckedChanged(object sender, EventArgs e)
        {
            foreach (GridDataItem item in RadGrid1.MasterTableView.Items)
            {
                RadioButton rbd = (RadioButton)item.FindControl("rbdSelect");
                if (rbd.Checked == true)
                {
                    string key = item.GetDataKeyValue("Id").ToString();
                    Response.Redirect("~/Default.aspx");
                }
            }
        }

Please reply what is wrong in my code

[Eyup]

Hi Priyanka,

You can achieve that using the following approach:

Copy Code

protected void rbtnlStatus_SelectedIndexChanged(object sender, EventArgs e)
{
    GridDataItem item = (sender as RadioButtonList).NamingContainer as GridDataItem;
    item.Selected = true;
}

If you want to implement this logic on the client-side for better performance, you can add the following:

Copy Code

<asp:RadioButtonList ... onclick='<%# "radioListClick(this);" %>'>

JavaScript:

Copy Code

function radioListClick(radioList) {


    ...

}

Hope this helps. Please give it a try and let me know about the result.

Regards,
Eyup
Telerik