Empty text box conformation <ok> or <cancle>.if it is ok do something else reject the application

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Am using the below message box in asp.net web application. Now i want to convert this message box as a confirmation message box and do something when it is true else means reject the application.
How do I use If condition here

What I have tried:

ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "confirm('Address,Phone Number,Email ID Is Empty Do You Want To Continue');", true);

Posted 31-May-16 20:41pm

balu18425

Updated 31-May-16 20:58pm

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Sergey Alexandrovich Kryukov 1-Jun-16 2:52am

What do you mean by "how to use If"? The way it is defined in JavaScript. You have to learn JavaScript before doing some programming. "if" is one of the most basic programming features.
—SA

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Sergey Alexandrovich Kryukov · Answer 1 · 2016-05-31T20:58:00

The use of JavaScript window.confirm with if (if not with if then why?) is quite clearly explained, for example, here: Window.confirm() - Web APIs | MDN[^].

But could it be considered as a good solution? I would not say so, not for production-quality applications. Such methods give ugly look depending on the platform and browser, which may not be in line with your application styles, and badly limited in flexibility.

It would be much better to develop modal-like behavior inside a Web page, and do it fully locally, with JavaScript. The first solution would be this: https://jqueryui.com/dialog[^].

Also, there are many 3rd-party jQuery plug-ins, collectively known as "modal popup", with different effects, such as transitions, and, notably, dimming of the rest of the page. Please see: http://bfy.tw/AJH[^].

If you need to learn jQuery (highly recommended), please see:
http://en.wikipedia.org/wiki/JQuery,
http://jquery.com,
http://learn.jquery.com,
http://learn.jquery.com/using-jquery-core,
http://learn.jquery.com/about-jquery/how-jquery-works (start from here).

But you don't have to do it like that. In my article Modal Popup From Scratch I explain how to it and explain the behavior and the rationale behind this design element.

—SA