How I can make js confirmation without postback?

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Hi everyone. I have asp.net page and confirmation message when I click on button. But when i click yes to this my page refreshing( do postback). How can I make confirmation message without resfreshing my page?
Asp.net C# Framework 2.0 JS

ASP.NET

<asp:Button ID="SaveBtn" runat="server"  Text="Save" CssClass="btngo" OnClientClick="javascript:return confirm('Do you want to Save?');" OnClick="SaveBtn_Click" />

Posted 11-Mar-15 4:51am

Andrey Golubtsov

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3 solutions

Solution 2

You can make an ajax call to the server side method when the user click yes in the js confirm box. Refer: AJAX for Beginners (Part 3) - Calling Server Side Methods and Consuming Web Services from JavaScript in an ASP.NET website[^] so that there will be no page refresh.

Posted 11-Mar-15 5:15am

Peter Leow

Updated 11-Mar-15 5:16am

v2

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Andrey Golubtsov 11-Mar-15 11:27am

Thanks)

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Kornfeld Eliyahu Peter · Accepted Answer · 2015-03-11T04:56:00

When you hit a button that has as server side event attached to it (in your case SaveBtn_Click) the page will do a postback automatically...
The confirmation has nothing to do with it, the only connection is that the client side even handler called BEFORE the server side one, and can stop postback if it returns false...
So, if you choose No/Cancel in your confirmation dialog, it will return false and the process will not continue - no postback.
However if you choose Yes/OK the confirmation dialog will return true and the server side event handler will be called - postback!

F-ES Sitecore · Accepted Answer · 2015-03-11T05:39:00

Solution 3

The simplest way is to put your controls inside an asp:UpdatePanel. That will submit the form asynchronously with no page refresh and you don't need to do any coding.

Posted 11-Mar-15 5:39am

F-ES Sitecore