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POASP.NET Forms: Using jquery to post to asp.net page method with parameters
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  1. POASP.NET Forms: Using jquery to post to asp.net page method with parameters
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    copied!<p>I've seen lots of related questions, but nowhere have I found a simple example of code that passes parameters back to a page method via jquery.</p> <p>I've looked through some of the examples at encosia.com (thanks, Dave) but still haven't managed to get it working. Here's the code so far:</p> <p>Updated - added some code to pass in params, but it's still not working. </p> <p>test.aspx:</p> <pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml"&gt; &lt;head runat="server"&gt; &lt;title&gt;test page&lt;/title&gt; &lt;script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; $(document).ready(function() { // Add the page method call as an onclick handler for the div. $("#Result").click(function() { var intxt = document.getElementById("&lt;%= txtIn.ClientID %&gt;").value; var params = $.toJSON({ 'inStr': intxt }); $.ajax({ type: "POST", url: "test.aspx/RunTest", data: params, contentType: "application/json; charset=utf-8", dataType: "json", success: function(msg) { $("#Result").text(msg); } }); }); }); &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;form id="form1" runat="server"&gt; &lt;div id="Result"&gt;Click here&lt;/div&gt; &lt;asp:TextBox ID="txtIn" runat="server"&gt;&lt;/asp:TextBox&gt; &lt;/form&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>and in test.aspx.vb:</p> <pre><code> &lt;WebMethod()&gt; _ Public Shared Function RunTest(ByVal instr As String) As String Return "this is your string: " + instr End Function </code></pre> <p>Update:</p> <p>The RunTest menthod above is never called. However, if I also have:</p> <pre><code> &lt;WebMethod()&gt; _ Public Shared Function RunTest() As String Return "no params here" End Function </code></pre> <p>Then the 2nd method IS called. </p> <p>What am I missing? Is this the wrong approach?</p>
 

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