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    <p>You have some options for this. First of all, I assume that what you need is the actual data and not any functionality given by the DataTable object, so you better create an entity (could be a <code>struct</code>) to store the table's data —it must be marked with <code>Serializable</code> attribute.</p> <p>One of your options is to encapsulate retrieving it in a <em>Page Method</em>. These methods are exposed to JavaScript transparently (i.e., they have the same syntax as in the code behind). These methods need to be <code>static</code>, and be marked with the <code>PageMethod</code> attribute.</p> <p>Another option would be to "write" the content of your table in the HTML in JSON format (a notation to represent objects in JavaScript).</p> <p><strong>Edit 2</strong>: The way to serialize something into JSON is by using the class <code>System.Web.Script.Serialization.JavaScriptSerializer</code>, creating an instance and calling <code>.Serialize(&lt;your-serializable-object&gt;)</code>.</p> <p><strong>Edit</strong>: Added the following (working) example...</p> <p><em>ASPX</em> page:</p> <pre><code>&lt;script type="text/javascript"&gt;// &lt;![CDATA[ function doTest( ) { try { PageMethods.test(theForm.qty.value, function( result ) { var str = ''; for ( var key in result ) { str += '\t{ '+ key +': '+ result[ key ] +' }\n'; } alert('Page Method returned the following result:\n'+ (str || "{ }")); }, function( ex ) { alert('Page Method returned the following "'+ ex.get_exceptionType() +'" exception:\n'+ ex.get_message()); }); } catch( err ) { alert('Failed to execute Page Method:\n'+ err); } } // void doTest() // ]]&gt; &lt;/script&gt; ··· &lt;form runat="server" id="form"&gt; &lt;asp:scriptmanager runat="server" enablepagemethods="true" /&gt; &lt;fieldset id="forma"&gt; &lt;legend&gt;WebMethod Test&lt;/legend&gt; &lt;label for="qty"&gt; Number of elements (&gt;= 0): &lt;input type="text" name="qty" id="qty" value="5" /&gt; &lt;/label&gt; &lt;input type="button" value="Push the button!" onclick="doTest(this)" /&gt; &lt;/fieldset&gt; &lt;/form&gt; </code></pre> <p>And, on your <em>code behind</em>:</p> <pre><code>using System; using System.Collections.Generic; using System.Web.Services; namespace Tests { public partial class Test : System.Web.UI.Page { [WebMethod] static public IDictionary&lt;string,string&gt; test( int length ) { if ( 0 &gt; length ) { throw new ArgumentException( "Length cannot be less than zero", "length" ); } var result = new Dictionary&lt;string,string&gt;( length ); for ( int i = 0; i &lt; length; i ++ ) { result.Add(i.ToString(), Char.ConvertFromUtf32(65 + i) +"|"+ Char.ConvertFromUtf32(97 + i)); } return result; } // IDictionary&lt;string,string&gt; test( int ) } } </code></pre>
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    1. POGet DataTable values from code behind to client side using javascript
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    1. COHi, can you show me a sample code to demonstrate on how to do it? Thank you!
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    2. COWorking (basic) example added. Note that I used a `Dictionary<string,string>` collection, which is *serializable* by default; if you use your own type you will need to mark it with the `Serializable` attribute.
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    3. COtnx void! It works for me. 1 vote and marked it as the answer :)
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