在ASP.NET GridView中未选中复选框

我有一个项目,我正试图检查 GridView

ASP.NET

<asp:GridView ID="grdAssignMenu" runat="server" AutoGenerateColumns="False" CssClass="custListTBL" Height="298px" Width="324px">
      <Columns>
            <asp:TemplateField>
                  <ItemTemplate>
                       <asp:CheckBox ID="chkControl" runat="server" />
                  </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Menu Name">
                  <ItemTemplate>
                       <asp:Label ID="lblMenu" runat="server" Text='<%# Eval("roleName").ToString() %>'></asp:Label>
                  </ItemTemplate>
            </asp:TemplateField>
      </Columns>
</asp:GridView>

C#

protected void btnSave_Click(object sender, EventArgs e)
{
    foreach (GridViewRow row in grdAssignMenu.Rows)
    {
        System.Web.UI.WebControls.CheckBox cb = (System.Web.UI.WebControls.CheckBox)row.FindControl("chkControl");
        bool status = cb.Checked;

        if (cb.Checked) //Returns false every time, even though checked
        {
           System.Web.UI.WebControls.Label lbl = (System.Web.UI.WebControls.Label)row.FindControl("lblMenu");
           string lblValue = lbl.Text;

           lblMsg.Text = lblValue;
        }
    }
}

基本上,我想从 CheckBox