weixin_33712881 2016-01-09 19:05 采纳率: 0%
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VB.NET同时返回字符串

I have a VB.NET function that is called via AJAX on the front end. The AJAX call passes back some arguments, and the function on the backend generates an HTML table, and returns it to the front end as a string. For example, I would get back something like: <table><tr><td>hello</td></tr></table>.

My VB function looks like:

Public Shared Function MakeTable(arg1, arg2) as String
   ' Do magic
   return myTableInStringFormat
End Function

I have run into some issues while using my code and narrowed it down the length of a string coming from the backend. When the string that comes back is greater than 65535 characters it does not make it to the front end. I believe this has to do with the following: https://msdn.microsoft.com/en-us/library/wdzat713.aspx

How do I return back data while avoiding the string character line limit? Line continuation characters seem to be the answer, but I'm not sure how those can be used due to me needing to return a string.

EDIT1: More code. Here is my AJAX postback code, as well as the table appending code:

function GetMyTable(arg1, arg2) {
   type: "POST",
   url: myHandler.ashx/MakeTable",
   data: "{'arg1':'" + arg1+ "','arg2':'" + arg2+ "'}",
   contentType: "application/json; charset=utf-8",
   dataType: "json",

   success: function (msg) {
      $("#myTable").empty().append("").append(msg.d);
      },

   error: function () {
      alert("Failed to load ");
   }
   });
   }

EDIT2. Here is the backend function the AJAX calls:

<System.Web.Services.WebMethod()> _
Public Shared Function MakeTable(arg1 As String, arg2 As String) As String
   Dim dString As New StringBuilder
   ' Some datareader gets data from database...
    dString.Append("<tr><td>hello</td></tr>")
    return dString.toString()
End Function
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