what i could get information

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what i could get information from html in javascript?
for example i want get data from html in textbox of language asp.net c#

<head>
<javascript language="javascript">
/*i want get information in control by name txtdata */

</head>

<asp:textbox id="txtdata" runat="server" />

Posted 12-Sep-12 10:13am

misaq yarian

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prashant patil 4987 · Accepted Answer · 2012-09-12T18:13:00

Solution 2

try this in Javascript

JavaScript

<html>
<head>
var textBoxvalue = document.getElementById("txtdata");
</head>
<body>
<asp:textbox id="txtdata" runat="server" xmlns:asp="#unknown" />
</body>
</body></html>

Posted 12-Sep-12 18:13pm

prashant patil 4987

Sergey Alexandrovich Kryukov · Accepted Answer · 2012-09-12T10:33:00

This is one of main purposes of JavaScript. For example, you can get an input control object using getElementById and then use its property value. In case of text input, it will be the text in the text box. Please see:
http://www.tizag.com/javascriptT/javascript-getelementbyid.php[^],
http://www.w3schools.com/tags/tag_input.asp[^].

Starting from any element, you can also get the whole DOM model of the whole document of its part. Please start here:
http://www.w3schools.com/jsref/default.asp[^],
http://www.w3schools.com/jsref/dom_obj_document.asp[^].

It's more convenient to work with HTML DOM elements using jQuery:
http://en.wikipedia.org/wiki/Jquery[^],
http://jquery.com/[^].

For example, this is the equivalent of getElementById: