My website includes an ASP.NET button control and a textbox. I need to set up a confirm message box that will appear when someone changes the content of the textbox and then clicks on the button. Ideally, if the user clicks "yes" in the confirmation box, the button event should fire; otherwise, nothing should happen. I have attempted to implement AJAX callback for this functionality, as using the ASP.NET button control directly has not been successful.
Simply insert the provided code snippet into your aspx file:
<asp:Button ID="btn1" OnClientClick="return confirm('Are you sure?');" runat="server" Text="Submit" />
If you're looking to add a confirmation button on your web application, the ConfirmButtonExtender from the AjaxControlToolkit is a great tool for achieving this functionality.
For more information and examples, check out: http://www.asp.net/ajax/ajaxcontroltoolkit/Samples/ConfirmButton/ConfirmButton.aspx
Another method to achieve this is through the use of Client Callback in ASP.Net, a valuable feature that enhances functionality in ASP.Net.
For more information, please visit http://msdn.microsoft.com/en-us/library/ms178208.aspx. I hope this resource proves to be useful for you :)
Employing the combination of OnClientClick along with the confirm feature in javascript as recommended by Pilgerstorfer Franz, and incorporating an update panel for the ajax request you referenced...
<asp:UpdatePanel runat="server">
<ContentTemplate>
<asp:TextBox ID="txtInput" runat="server"/>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnSubmit" />
</Triggers>
</asp:UpdatePanel>
<asp:Button ID="btnSubmit" OnClientClick="return confirm('Are you sure you want to submit?');" runat="server" Text="Submit" />
This setup should provide you with the functionality you are looking for.
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