unable to pass post value over from ajax to the page in .net c#

Question

Does anyone know what is it going on here? I have try to pass a value from ajax to .aspx, but somehow the value seem doesn't pass over successfully.

Following is my code:

  $.ajax({
      type: "POST",
      url: "pgtest.aspx",
      data: "sState=VIC",
      success: function (msg) {
          alert("Data Saved: " + msg);
      }
  });

and this is my code inside my .net c#:

newTest.Value = Request.QueryString["sState"];

Somehow the for Request.QueryString["sState"] is empty in .net c#. Does anyone know what is going wrong here ?

configurator · Accepted Answer · 2011-05-12 02:49:32Z

1

When passing data in POST, the data is not passed in Request.QueryString, it's passed into Request.Form instead. Try

newTest.Value = Request.Form["sState"];

Another thing I'd change is the jQuery call - use a data object instead of just a string, a such:

$.ajax({
      type: "POST",
      url: "pgtest.aspx",
      data: { sState: "VIC" },
      success: function (msg) {
          alert("Data Saved: " + msg);
      }
});

answered May 12, 2011 at 2:49

configurator

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Community · Accepted Answer · 2017-05-23 10:24:09Z

0

Request.QueryString is for GET requests only. For POST requests, you need Request.Form. See also: Get POST data in C#/ASP.NET

edited May 23, 2017 at 10:24

CommunityBot

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answered May 12, 2011 at 2:47

Ry-♦

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2 Comments

configurator Over a year ago

When you use the Request indexer (Request[...]), you can get values from either QueryString, Form, Cookies or ServerVariables. If you know which one the value should be in - and you should always be able to know - use that. In this case, like I mentioned in my answer, it's Form.

Ry- Over a year ago

I'll admit it - I forgot :) I don't use ASP.NET much. Sorry.

user12187129 · Accepted Answer · 2019-10-09 14:15:36Z

0

You need to use GET request as it is light in nature but less secured too and it is passed in querystring.:

$.ajax({
      type: "GET",
      url: "pgtest.aspx?sState=VIC",      
      success: function (msg) {
          alert("Data Saved: " + msg);
      }
  });

Now you will get below values:

newTest.Value = Request.QueryString["sState"];

answered Oct 9, 2019 at 14:15

user12187129

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