How to Assign variable? - angularjs

Question

I don't know how to assign value return from stored procedure into web api? how to pass variables througn angulrjs
I called serivice
var promisePost = crudService.candidatePost(Candidates);
promisePost.then(function (pl) {
alert("Sucessfully Inserted")
}, function (err) {
alert("NOt Inserted")
});
my app.js is
MyApp.service('crudService', function ($http, RESOURCES) {
this.candidatePost = function (Candidate) {
var request = $http({
method: "post",
url: RESOURCES.baseUrl + "saveCandidate",
data: Candidate
});
return request;
}
});
my controller is
[HttpPost]
[Route("api/saveCandidate")]
public HttpResponseMessage AddDetail(Candidate ct)
{
SqlConnection con = new SqlConnection(Constant.ConnectionString);
SqlCommand cmd = new SqlCommand();
int rowInserted = 0;
try
{
cmd = new SqlCommand("sp_Insert_tblCandidate", con);
con.Open();
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("#Name", ct.Name);
cmd.Parameters.AddWithValue("#Gender", ct.Gender);
cmd.Parameters.AddWithValue("#Dob", ct.Dob);
cmd.Parameters.AddWithValue("#Mob", ct.Mob);
cmd.Parameters.AddWithValue("#EntryDate", ct.EntryDate);
cmd.Parameters.AddWithValue("#Note", ct.Note);
cmd.Parameters.AddWithValue("#Emial", ct.Emial);
cmd.Parameters.AddWithValue("#Address", ct.Address);
rowInserted = cmd.ExecuteNonQuery();
con.Close();
}
catch (Exception obj)
{
if (rowInserted != 1)
{
var message = obj.Message;// string.Format("Insertion Of Data is not Succefully Executed");
HttpError err = new HttpError();
return Request.CreateResponse(HttpStatusCode.NotFound, err);
}
}
finally
{
if (con.State == System.Data.ConnectionState.Open)
{
con.Close();
}
}
var alertmessage = string.Format("Insertion Of Data is Succefully Executed");
return Request.CreateResponse(HttpStatusCode.OK, alertmessage);
}
My stored Procedure is
IF EXISTS ( SELECT *
FROM sysobjects
WHERE id = object_id(N'[dbo].[sp_Insert_tblCandidate]')
and OBJECTPROPERTY(id, N'IsProcedure') = 1 )
BEGIN
DROP PROCEDURE [dbo].[sp_Insert_tblCandidate]
END
GO
Create procedure [dbo].[sp_Insert_tblCandidate]
(#Name varchar(50) ,
#Gender char(1),
#dob varchar(25),
#Mob varchar(15),
#EntryDate varchar(50),
#Note varchar(100),
#Emial varchar(50),
#Address varchar(50)
)As
Begin
INSERT INTO [dbo].[tblCandidate] VALUES (#Name,#Gender,#dob,#Mob,#EntryDate,#Note,#Emial,#Address);
SELECT SCOPE_IDENTITY() as CandidateId;
end
GO
My stored procedure purpose is insert data & return last inserted id. In this table id set to auto increment.Anyone can help me?

Answer 1

You are returning the new Id so you shouldn't be using
cmd.ExecuteNonQuery()
But something that can handle the return value. Try changing it to
rowInserted = (int) cmd.ExecuteScalar();
Also right now you are checking in the catch the rowInserted which doesn't makes much sense.

Answer 2

You cannot get a result from ExecuteNonQuery() as it only returns the number of rows affected for the query you just executed.
Since you are returning the SCOPE_IDENTITY(), you can either use ExecuteReader() or ExecuteScalar().
rowInserted = (int)cmd.ExecuteScalar();
or
using(SqlDataReader rdr = cmd.ExecuteReader())
{
while(rdr.Read())
{
rowInserted = Convert.ToInt32(rdr[0]);
}
}
But using SqlDataReader is kinda unnecessary in this scenario.
Plus, just an observation; be careful when choosing between SCOPE_IDENTITY(), ##IDENTITY and IDENT_CURRENT.