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jqueryasp.netweb-servicesasmx

asp.net : how to send a array from client to server web method

In ASP.NET, I have collected a list of selected items from a checkbox in an array at the client side. Now I need to pass the array from client to server's ASMX web method. How do I do this?

Solution

  • Add a JSON library to your page, use json2.js here. That gives you a function to serialize javascript arrays into JSON strings.

    You can then pass it into your webmethod:

    [WebMethod] 
public void MyWebMethod(List<string> someValues)
{
    // Use someValues...
}

    Here's the javascript you need

    var arrayData = ["1","2","3"]; // Your array goes here

$.ajax({
  type: "POST",
  url: "MyWebService.asmx/MyWebMethod",
  data: JSON.stringify({ someValues: arrayData }),
  contentType: "application/json; charset=utf-8",
  dataType: "json",
  success: function() 
  {
    // Your success function...
  }
});