Sending JSON object successfully to ASP.NET WebMethod, using jQuery

Question

I\'ve been working on this for 3 hours and have given up. I am simply trying to send data to an ASP.NET WebMethod, using jQuery. The data is basically a bunch of key/value p

Answer 1

The following is a code snippet from our project - I had trouble with not wrapping the object as a string and also with Date values - hopefully this helps someone:

        // our JSON data has to be a STRING - need to send a JSON string to ASP.NET AJAX. 
        // if we specify an actual JSON object as jQuery's data parameter, it will serialize it as ?k=v&k=v pairs instead
        // we must also wrap the object we are sending with the name of the parameter on the server side – in this case, "invoiceLine"
        var jsonString = "{\"invoiceLine\":" + JSON.stringify(selectedInvoiceLine) + "}";

        // reformat the Date values so they are deserialized properly by ASP.NET JSON Deserializer            
        jsonString = jsonString.replace(/\/Date\((-?[0-9]+)\)\//g, "\\/Date($1)\\/");

        $.ajax({
            type: "POST",
            url: "InvoiceDetails.aspx/SaveInvoiceLineItem",
            data: jsonString,
            contentType: "application/json; charset=utf-8",
            dataType: "json"
        });

The server method signature looks like this:

    [WebMethod]
    public static void SaveInvoiceLineItem(InvoiceLineBO invoiceLine)
    {