在ASP:GridView中插入隐藏列,但客户端仍然可用

<style>
.hidden {display:none;}
</style>

...

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false">
    <Columns>
        <asp:BoundField DataField="Id" ItemStyle-CssClass="hidden"
            HeaderStyle-CssClass="hidden" />
        <asp:BoundField DataField="Title" />
    </Columns>
</asp:GridView>

ItemStyle-CssClass="hidden"

.hidden{ display: none; }

TemplateField .aspx

<asp:TemplateField>
  <ItemTemplate>
    <asp:HiddenField ID="ITEM_VAL" runat="server" Value='<%# Bind("ITEM_VAL") %>' />
  </ItemTemplate>
</asp:TemplateField>

protected Sub gvHist_RowDataBound()
  Dim val as Integer
  Dim hiddenCol As HiddenField = e.Row.FindControl("ITEM_VAL")
  val = Convert.ToInt32(hiddenCol.Value)
End Sub

display:none