How to increase the height of the POP UP screen using window.open in ASP.NET with c#.?

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I want to increase the height of POP UP Screen using window.open in asp.net with c#. I am not able to do so even after increasing the dialogheight parameter

What I have tried:

My code is as below:

string st = "<script language='JavaScript'> window.open('ViewPDF.aspx" + queryString + "',  'mywindow' ,'dialogWidth:1000px; dialogHeight:500px; center:yes');</script>";

Posted 15-Dec-20 20:34pm

ranio

Updated 15-Dec-20 22:07pm

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Richard Deeming · Answer 1 · 2020-12-15T22:07:00

Neither dialogWidth nor dialogHeight are valid attributes for the "window features" string:
Window.open() - Web APIs | MDN[^]

Perhaps you meant width and height instead?

NB: Most browsers will block window.open calls which are not triggered as the direct result of user interaction. You can open a window when the user clicks an element on the page, but you cannot open a window as soon as your page loads.

In ASP.NET, if the user clicks an element which causes a postback, that does not count as user interaction for opening a new window from script returned by the code-behind.

You'll also find that many browsers will open new windows in a new tab rather than a separate window. You will not be able to control the size of the tab, since it will be the same size as the main browser window.