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Editorial Team
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Asked: 2026-05-28T03:38:18+00:00

i had a javascript to detect user broswer width and want to pass the

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i had a javascript to detect user broswer width and want to pass the width to aspx.vb. 

function chk_width() {
 var winW = document.body.offsetWidth;
 document.getElementById("hiddenfieldsize").value = winW;
// alert(winW);
} 

<body onLoad="chk_width()">

i had tried to use the following code, but i cannot get the value.

Dim WinWdth As String = Request.Form("hiddenfieldsize").ToString

Joe

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1 Answer

  1. Editorial Team

    you can get value at server by set server control’s value in javascript. I have illustrate the code below. hope it will be helpful to you.

    <asp:HiddenField runat="server" ID="hiddenfieldsize" />

function chk_width() {
 var winW = document.body.offsetWidth;
document.getElementById("<%=hiddenfieldsize.ClientID %>").value= winW;     
} 

$(document).ready(function() {
  chk_width();
});
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