Question

Is there a way to create a message box with Yes / No buttons in a webform without the use of Javascript or System.Windows.Forms.MessageBox ?

Answer 1

Yes of course – just create an appropriately styled panel with a couple of buttons; obviously you’ll have to contend with postbacks so it won’t be nearly as performant but definitely do-able. Something like:

<asp:Panel runat="server" ID="myDialogBox">
    <p>Are you sure you want to continue?</p>
    <div>
        <asp:Button runat="server" ID="btnYes" Text="Yes" OnClick="btnYes_Click" />
        <asp:Button runat="server" ID="btnNo" Text="Yes" OnClick="btnNo_Click" />
    </div>
</asp:Panel>

with the event handlers left for you to implement