How to call stored procedure in ASP.NET MVC with Entity Framework

Question

These are my tables:

CREATE TABLE [dbo].[tblDepartment]
(
    [departmentId] [int] IDENTITY(1,1) NOT NULL,
    [name] [nvarchar](50) NULL,

    CONSTRAINT [PK_tblDepartment] 
        PRIMARY KEY CLUSTERED ([departmentId] ASC)
) ON [PRIMARY]
GO

CREATE TABLE [dbo].[tblUser]
(
    [userId] [int] IDENTITY(1,1) NOT NULL,
    [name] [nvarchar](50) NULL,
    [address] [nvarchar](500) NULL,
    [state] [nvarchar](50) NULL,
    [salary] [bigint] NULL,
    [departmentId] [int] NULL,

    CONSTRAINT [PK_tblUser] 
        PRIMARY KEY CLUSTERED ([userId] ASC)
) ON [PRIMARY]
GO

ALTER TABLE [dbo].[tblUser] WITH CHECK 
    ADD FOREIGN KEY([departmentId])
    REFERENCES [dbo].[tblDepartment] ([departmentId])
GO

My stored procedure:

CREATE PROCEDURE [dbo].[tblDepartment_insertUpdate]
    @userId int =0,
    @name nvarchar(50) ,
    @state nvarchar (50),
    @address nvarchar(500),
    @departmentId int ,
    @result nvarchar(50) output
AS
BEGIN
    IF (@userId = 0)
    BEGIN
        INSERT INTO tblUser (name, address, state, departmentId)
        VALUES (@name, @address, @state, @departmentId)

        IF (@@identity > 0)
           SET @result = 'Record save successfully'
        ELSE
           SET @result = 'Record not saved!'
    END
    ELSE
    BEGIN
        UPDATE tblUser 
        SET name = @name,
            address = @address,
            state = @state,
            departmentId = @departmentId
        WHERE userId = @userId

        SET @result = 'Record Updated !'
    END
END

What I have tried:

public IHttpActionResult PostEmpDetails(string name, int departmentId, string address, int salary, string state, int userId) {
  if (!ModelState.IsValid) {
      return BadRequest(ModelState);
  }

  // by using own stored procedure
  var spName = new SqlParameter("@name", name);
  var spState = new SqlParameter("@state", state);
  var spAddress = new SqlParameter("@address", address);
  var spDepartmentId = new SqlParameter("@departmentId", departmentId);
  var spUser = new SqlParameter("@userId", userId);

  var spOut = new SqlParameter {
   ParameterName = "@result",
    SqlDbType = System.Data.SqlDbType.NVarChar,
    Size = 100,
    Direction = System.Data.ParameterDirection.Output
  };

  var user = eContext.Database.SqlQuery < tbluser > ("exec  tblDepartment_insertUpdate @userId,@name,@state,@address,@departmentId, @result out ",
   spUser, spName, spState, spAddress, spDepartmentId, spOut
  ).ToList < tbluser > ();
  return Ok(user);
 }

I want to use my stored procedure in ASP.NET MVC for crud operations in a WebAPI project, but in post method, I get an error. Please suggest a solution

This is the error I get:

The data reader is incompatible with the specified 'EntityTestModel.tblUser'. A member of the type, 'userId', does not have a corresponding column in the data reader with the same name.

Answer 1

1. Create Model

2. Posting Data to APIController from PostMan

3. APIController View

Note :- Remove your Database Saving code from Controller and place it in Different Class Libary.