Introduction

Today, in this article let's play around with one of the interesting and most useful concepts in EDM Framework.

Question: What is insert data with raw SQL query via EDM framework?

In simple terms "It provides flexibility to insert data using raw SQL queries via EDM framework".

Step 1: Create a new web application

web-application.jpg

Step 2: Set up a new EDM framework with reverse engineering to the project

reverse-engineering-project.jpg

Step 3: The complete code of WebForm1.aspx looks like this:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="InsertDataSQLQueryEntityApp.WebForm1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
 <title></title>
</head>
<body>
 <form id="form1" runat="server">
 <div>
 <center>
 <table>
 <tr>
 <td>
 <asp:Label ID="Label1" runat="server" Text="Insert Data with Raw SQL Query via EDM Framework" Font-Bold="true"></asp:Label></td>
 </tr>
 </table>
 <br />
 <br />
 <table>
 <tr>
 <td>
 <asp:Label ID="Label2" runat="server" Text="Please Enter FirstName: " ForeColor="Brown" Font-Bold="true" Font-Italic="true"></asp:Label></td>
 <td>
 <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox></td>
 </tr>
 <tr>
 <td>
 <asp:Label ID="Label3" runat="server" Text="Please Enter LastName: " ForeColor="Brown" Font-Bold="true" Font-Italic="true"></asp:Label></td>
 <td>
 <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox></td>
 </tr>
 <tr>
 <td>
 <asp:Label ID="Label4" runat="server" Text="Please Enter Age: " ForeColor="Brown" Font-Bold="true" Font-Italic="true"></asp:Label></td>
 <td>
 <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox></td>
 </tr>
 <tr>
 <td colspan="2" align="center">
 <asp:Button ID="Button1" runat="server" Text="Insert Data" OnClick="Button1_Click" BackColor="Orange" Font-Bold="true" /><br />
 <br />
 </td>
 </tr>
 </table>
 <br />
 <br />
 <table>
 <tr>
 <td colspan="3">
 <asp:Label ID="Label5" runat="server" Font-Bold="true"></asp:Label></td>
 </tr>
 </table>
 </center>
 </div>
 </form>
</body>
</html>

Step 4: The complete code of WebForm1.aspx.cs looks like this:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using InsertDataSQLQueryEntityApp.Models;
namespace InsertDataSQLQueryEntityApp
{
public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(TextBox1.Text) || string.IsNullOrEmpty(TextBox2.Text) ||
string.IsNullOrEmpty(TextBox3.Text))
{
Label5.Text = "Please Enter Some Values";
Label5.ForeColor = System.Drawing.Color.Red;
}
else
 {
objContext.Database.ExecuteSqlCommand("insert into dbo.tblEmployee(FirstName, LastName, Age)
VALUES ('" + TextBox1.Text + "', '" + TextBox2.Text + "', " + int.Parse(TextBox3.Text) + ")");
 Label5.Text = "Data Successfully Inserted";
Label5.ForeColor = System.Drawing.Color.Green;
TextBox1.Text = string.Empty;
 TextBox2.Text = string.Empty;
 TextBox3.Text = string.Empty;
 }
}
 #region Instance MembersCompanyContext objContext = new CompanyContext();
 #endregion
 }
}

Step 5: The output of the application looks like this:

SQL-query-via-EDM-framework.jpg

Step 6: The inserted data output of the application looks like this:

SQL-query-via-EDM-framework1.jpg

I hope this article was useful for you. I look forward for your comments and feedback. Thanks Vijay.