asp.net with Easyui implementation returns JSON data instance

Recently, I want to use asp.net with Easyui to develop a small framework, and then use to Easyui combobox when there is a problem, it is known that the Easyui document on the ComboBox format is

code is as follows: <input class= "Easyui-combobox"


name= "Language"


data-options= "


URL: '.. /combobox/combobox_data1.json ',


Valuefield: ' id ',


TextField: ' Text ',


Multiple:true,


panelheight: ' Auto '


">

In the beginning, I wanted to write with Ajax using the ASP.net micro-blogging [method] approach, but there was a problem with the AJAX approach using [method], which is the following format,

The

code is as follows: $.ajax ({


type: "Post",


URL: "Addbug.aspx/getversions",


data: "{' Producename ': '" + SelectedValue + "'}",


dataType: "JSON",


contentType: "Application/json; Charset=utf-8 ",


success:function (data) {


$ ("#versions"). empty ();


$ ("#versions"). Append (DATA.D);


} 


});

That is, must write out its contenttype, but this for Easyui ComboBox data-options parameters are not, so that the return result contains a lot of HTML statements, tangled for a long time, Then accidentally tried the. ashx file and found it was successful.

Then I looked it up again. The role of the ashx file, in simple terms, is to provide the ability to return strings and pictures without returning processing results and a lot of HTML as in the case of an. aspx file.