How To Make A Simple Yes/no Popup In Asp.net That Return The Result Back To My C#?

With ASP.NET, how do I prompt the user for a yes/no question and getting the result back to my .ascx? So far I can open a confirmation dialog with use of Javascript, but I can't re

Solution 1:

You can use standart JavaScript confirm() function to show popup and do Post Back in case of Yes or No. For example:

if (confirm('Question')) {
    __doPostBack('', 'Yes_clicked');
} else {
    __doPostBack('', 'No_clicked')
}  

Then on server in Page_Load() method do:

if (IsPostBack)
{
    var result = Request.Params["__EVENTARGUMENT"];
}

You can also do it async by specifying the first parameter of __doPostBack() function as ID of any update panel.

Solution 2:

This is not a good practice to do this. you can get your confirm using javascript and postback or callback result to server.

but if you want to do this, this will help you :

A Simple ASP.NET Server Control: Message Box & Confirmation Box

Solution 3:

If you insist on using webforms, another solution could be the AJAX Control kit. Simply create a ModalPopup and have you confirm buttons inside that.

Read more here: http://www.asp.net/ajax/ajaxcontroltoolkit/Samples/ModalPopup/ModalPopup.aspx

Solution 4:

You need to use ajax, or to make a postback to the server. Your c# code is server side and the javascript is client side. If you use the ajax extensions for asp .net you can use javascript page methods:

PageMethods.YourMethod(confirm('your text'), OnSuccess, OnFailure);

Solution 5:

I use this. As far as I know it prevents the rest of the button event from executing.

btnMyButton.Attributes.Add("onClick", "return confirm('Are you really sure?')");