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How to check atleast one checkbox is checked?

Anonymous User200202-Sep-2014

I want to check at least one checkbox should be checked before unload the page or clicking on btn save.

<asp:GridView ID="grdTest" runat="server" DataKeyNames="Id" AutoGenerateColumns="False" HorizontalAlign="Center" GridLines="None" onrowcreated="grdTest_RowCreated">

  <asp:TemplateField >

      <ItemTemplate>

        <asp:TextBox ID="txtText" Rows="10" Columns="40" runat="server" TextMode="MultiLine"   Height="55px" Text='<%# Eval("Text") %>'></asp:TextBox>

        <asp:Button ID="btnSave" runat="server" Text="Save" CommandName="Save"/>           

        <span id="checkbox">

        <asp:RadioButton ID="rbtnTest"  runat="server" Checked='<%# Eval("Correct") %>' TextAlign="Left"  Height="28px" />

        </span>

      </ItemTemplate>

    <EditItemTemplate>

        <asp:TextBox ID="txtText" Rows="10" Columns="40" runat="server" TextMode="MultiLine" />

        <asp:Button ID="btnSave" runat="server" Text="Save" CommandName="Save"/>

        <asp:CheckBox ID="rbtnTest" runat="server"  Enabled="true" TextAlign="Left"/>

    </EditItemTemplate>

  </asp:TemplateField>

</asp:GridView>

plz some one help me?


Updated on 02-Sep-2014
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