How to send string over Angular $http to C# ASP.NET backend?

Question

I want to send a string via Angular $http to my ASP.NET C# backend. I am using web-forms. However, i get the following error:

POST http://localhost:49730/Default.aspx/get_requested_table 404 (Not Found)

My Angular controller looks like this:

App.controller("MainCtrl", function ($scope, $http) {
   $scope.request_table = function (tableName) {
       $http
           .post("Default.aspx/get_requested_table", tableName)
           .success(function (data) {
               console.log("Success, it worked!");
           });
   };
});

And my HTML looks like this:

<button ng-click="request_table('tblMain')" type='button'>GET IT</button>

And my ASP.NET C# file (aka Default.aspx.cs):

public static string myTable;
[WebMethod]
public static string get_requested_table(string tableName)
{
    var myTable = tableName;
    Console.Write(myTable);
    return myTable;
}

Am I doing something wrong to be getting this error? How can I use Angular's $http methods to speak with my C# backend?

Do you have a ScriptManager on your page? (msdn.microsoft.com/en-us/library/…) — Steve Danner
– Steve Danner, Commented Jan 25, 2016 at 21:48

charlietfl · Accepted Answer · 2016-01-25 21:59:33Z

1

You aren't sending a key/value pair

Try

$http.post("Default.aspx/get_requested_table", {tableName: tableName})

edited Jan 25, 2016 at 21:59

answered Jan 25, 2016 at 21:49

charlietfl

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3 Comments

Kangze Huang Over a year ago

Sorry I realized I may have been confusing by calling the variable table. It should really be tableName as it is a string. So would I thus have to change the key/value pair to {string:tableName} ?

charlietfl Over a year ago

key is the object key...make it match back end

Kangze Huang Over a year ago

Awesome! That worked! I set {tableName: tableName}, thanks! :)

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