Introduction

In this article we will see how to delete data from database using linqtosql with deleteallonsubmit method.

Step 1: Create ASP.NET Web Application

WebForm1.aspx

  1. <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="DeleteAllOnSubmit_LINQtoSQL.WebForm1" %>
  3. <!DOCTYPE html>
  5. <html xmlns="http://www.w3.org/1999/xhtml">
  6. <head runat="server">
  7. <title></title>
  8. </head>
  9. <body>
  10. <form id="form1" runat="server">
  11. <div>
  12. <asp:Button ID="Button1" runat="server" Text="Delete Data" OnClick="Button1_Click" />
  13. </div>
  14. </form>
  15. </body>
  16. </html>

WebForm1.aspx.cs

  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Web;
  5. using System.Web.UI;
  6. using System.Web.UI.WebControls;
  8. namespace DeleteAllOnSubmit_LINQtoSQL
  9. {
  10. public partial class WebForm1 : System.Web.UI.Page
  11. {
  12. DataClasses1DataContext objContext = new DataClasses1DataContext();
  13. protected void Page_Load(object sender, EventArgs e)
  14. {
  16. }
  18. protected void Button1_Click(object sender, EventArgs e)
  19. {
  20. List<Employee> emp = new List<Employee>()
  21. { new Employee { EmpId = 1 },
  22. new Employee { EmpId = 2 },
  23. new Employee { EmpId = 3 }
  24. };
  26. objContext.Employees.DeleteAllOnSubmit(emp);
  27. objContext.SubmitChanges();
  29. }
  30. }
  31. }

Output of the application looks like this

Summary

In this blog we have seen how we can delete data from database using linqtosql with deleteallonsubmit. Happy coding!