使用JSON JavaScriptSerializer时发生错误“字符串的长度超过了在maxJsonLength属性上设置的值”

Question

I am using JavascriptSerializer within my C# code and I am getting an error that string value exceesa maxJSonLength. My object is filled from the database datatable that returns more than 50K rows. I tried changing maxJsonLength property in my App.Config file but the error does not go away. Please help

<system.web.extensions>
   <scripting>
       <webServices>
           <jsonSerialization maxJsonLength="5000000000"/>
       </webServices>
   </scripting>
</system.web.extensions>

Just in case, here is my C# code:

List<MyRecord> lst= ...;
string strJSON = new JavaScriptSerializer().Serialize(lst);

Answer 1

maxJsonLength属性的类型为int ，因此其值不能超过Int32.MaxValue ，即2147483644。