Asmx receiving POST -ed values(params) from Extjs? - web-services

Question

How to receive posted values to variable in .asmx that was posted from extjs, so it can be saved using ado.net to database?
SENDING DATA WITH EXT.AJAX
{
text: 'Add',
formBind: true,
disabled: true,
handler: function () {
var form = this.up('form').getForm();
var formValues = form.getValues();
var firstName = formValues.firstName;
var lastName = formValues.lastName;
if (form.isValid()) {
Ext.Ajax.request({
url: 'WebServices/WebService.asmx/AddAgent',
headers: { 'Content-Type': 'application/json' },
method: 'POST',
jsonData: { FirstName: firstName, LastName: lastName }
});
}
}
}
When submited, firebug reports error:
How to properly recieve this values in .asmx so they can be used in [WebMethod] and saved with Ado.Net?
[Serializable]
public class Agents
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
//CREATE
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = true)]
public string AddAgent()
{
string connStr = ConfigurationManager.ConnectionStrings["AgentsServices"].ConnectionString;
using (SqlConnection connection = new SqlConnection(connStr))
{
connection.Open();
using (SqlCommand command = new SqlCommand("insert into Agent(id, firstName, lastName) values(#id, #firstName, #lastName)", connection))
{
command.Parameters.AddWithValue("#firstName", FirstName); //here i get message( The name "FirstNAme does not exist in current context")
command.Parameters.AddWithValue("#lastName", LastName); // -||-
command.ExecuteNonQuery();
}
}
}
EDIT:
No. stil 500 Internal Server Error:

Answer 1

Your web method doesn't seem to take any argument. Also your method expects to return a string and yet you do not return anything. So either return something or modify your method signature to void. Also you have set UseHttpGet = true and yet you are sending a POST request. Try like this:
[WebMethod]
[ScriptMethod]
public void AddAgent(Agents agents)
{
string connStr = ConfigurationManager.ConnectionStrings["AgentsServices"].ConnectionString;
using (SqlConnection connection = new SqlConnection(connStr))
{
connection.Open();
using (SqlCommand command = new SqlCommand("insert into Agent(id, firstName, lastName) values(#id, #firstName, #lastName)", connection))
{
command.Parameters.AddWithValue("#firstName", agents.FirstName);
command.Parameters.AddWithValue("#lastName", agents.LastName);
command.ExecuteNonQuery();
}
}
}
Also since you have defined the Id property of your Agents model as a non-nullable integer I would recommend you sending a value for it:
jsonData: { agents: { Id: 0, FirstName: firstName, LastName: lastName } }