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  1. PO
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    <p>Since you have given the tags as jQuery and jQuery Ajax I am deviating a little from the solution.</p> <p>Do these things</p> <p>1.Wrap your <code>WebMethod</code> in a try-catch block. try-catch are there for a reason. </p> <pre><code>[WebMethod] public static string GetDataFromDB() { try { System.Collections.Generic.Dictionary&lt;string, string&gt; DictionaryGetPerson = new Dictionary&lt;string, string&gt;(); using (OracleConnection con = new OracleConnection("server=xe; uid=system; pwd=;")) { string Command = "Select * from tblSavePerson"; //selecting Top 1 Row in Oracle OracleCommand cmd = new OracleCommand(Command, con); con.Open(); OracleDataReader dr = cmd.ExecuteReader(); while (dr.Read()) { DictionaryGetPerson.Add("FirstName", dr["FirstName"].ToString()); } } JavaScriptSerializer js = new JavaScriptSerializer(); return js.Serialize(DictionaryGetPerson).ToString(); } catch (Exception exception) { //Elmah.ErrorSignal.FromCurrentContext().Raise(exception); throw new Exception(exception.Message); } } </code></pre> <p>Please note that this Dictionary will fail with Duplicate Key error if you have more than one row. If there are no errors lets move to step 2.</p> <p>2.Do not use <strike><code>PageMethods.GetDataFromDB</code></strike>. It very <em>ancient</em>. <a href="http://encosia.com/using-jquery-to-directly-call-aspnet-ajax-page-methods/" rel="nofollow">Using jQuery one can consume ASP.NET Ajax Page Methods directly</a>. Call Page method like this.</p> <pre><code>function LoadNames() { $.ajax({ contentType: "application/json;", data: "{}", type: "POST", url: 'Test1.aspx/GetDataFromDB', success: function (msg) { OnSucceeded(msg); }, error: function (xhr, status, error) { //alert("error"); //OnFailed(a, b, c); } }); } function OnSucceeded(dict) { var jsonData = dict.hasOwnProperty("d") ? dict.d : dict; var json = $.parseJSON(jsonData); alert(json.FirstName); } </code></pre> <p>Also, don't <strike><code>eval(result.d)</code></strike> when we have <code>$.parseJSON</code> in jQuery.</p> <p>Hope this helps.</p>
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    1. POaccessing data using ajax page methods directly
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    1. USnaveen
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    1. POaccessing data using ajax page methods directly
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    1. COthanks for your suggestion. but i wanted to to this using page Pagemethods class. I am sure it will be done using above method.
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      1. USMohan Sharma
    2. COyes. you can call the same function OnSucceeded
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      1. USnaveen
    3. COfunction OnSucceeded(dict) { var jsonData = dict.hasOwnProperty("d") ? dict.d : dict; var json = $.parseJSON(jsonData); alert(json.FirstName); } This function not working...Do i need add a reference of json library.
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      1. USMohan Sharma
 

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