LINQ

Insert and Update Data With SP Using LINQ

Introduction
 
 Question: What is insert data with SP using LINQ?
 
 In simple terms "It enables insertion of data using a Stored Procedure with LINQ queries".
 
 Step 1: Create a new webform project:

Output1.png
 
 Step 2: The complete code of webform1.aspx looks like this:
 
 <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="InsertSPLINQApp.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 using SP with LINQ" Font-Bold="true"></asp:Label>
                     </td>
                 </tr>
                 <tr>
                     <td>
                         <asp:GridView ID="GridView1" runat="server" BackColor="#CCCCCC" AutoGenerateColumns="true"
                             BorderColor="#999999" BorderStyle="Solid" BorderWidth="3px" CellPadding="4" CellSpacing="2"
                             ForeColor="Black" OnLoad="Page_Load">
                             <FooterStyle BackColor="#CCCCCC" />
                             <HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" />
                             <PagerStyle BackColor="#CCCCCC" ForeColor="Black" HorizontalAlign="Left" />
                             <RowStyle BackColor="White" />
                             <SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
                             <SortedAscendingCellStyle BackColor="#F1F1F1" />
                             <SortedAscendingHeaderStyle BackColor="#808080" />
                             <SortedDescendingCellStyle BackColor="#CAC9C9" />
                             <SortedDescendingHeaderStyle BackColor="#383838" />
                         </asp:GridView>
                     </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">
                         <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" ForeColor="Red" Font-Bold="true"></asp:Label>
                     </td>
                 </tr>
             </table>
         </center>
     </div>
     </form>
 </body>
 </html>
 
 Step 3: 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;
 namespace InsertSPLINQApp
 {
     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
             {
                 objEntities.InsertEmployeeData(TextBox1.Text, TextBox2.Text,
                     int.Parse(TextBox3.Text));
                 var query = objEntities.SelectEmpData();
                 GridView1.DataSource = query;
                 GridView1.DataBind();
                 Label5.Text = "Records Inserted Successfully";
                 Label5.ForeColor = System.Drawing.Color.Green;
                 TextBox1.Text = string.Empty;
                 TextBox2.Text = string.Empty;
                 TextBox3.Text = string.Empty;
             }
         }
         #region Instance MembersCompanyEntities1 objEntities = new CompanyEntities1();
         #endregion
     }
 }
 
 Step 4: The output of the application looks like this:

Output2.png
 
 Step 5: The output of the data inserted output operation result looks like this:

Output3.png

Output4.png
 
 Question: What is update data with SP using LINQ?
 
 In simple terms "It enables the update of data using a Stored Procedure with LINQ queries".
 
 Step 1: Create a new webform project.
 
 Step 2: The complete code of webform1.aspx looks like this:
 
 <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="UpdateSPLINQApp.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="Update using SP with LINQ" Font-Bold="true"></asp:Label>
                     </td>
                 </tr>
                 <tr>
                     <td>
                         <asp:GridView ID="GridView1" runat="server" BackColor="#CCCCCC" AutoGenerateColumns="true"
                             BorderColor="#999999" BorderStyle="Solid" BorderWidth="3px" CellPadding="4" CellSpacing="2"
                             ForeColor="Black" OnLoad="Page_Load">
                             <FooterStyle BackColor="#CCCCCC" />
                             <HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" />
                             <PagerStyle BackColor="#CCCCCC" ForeColor="Black" HorizontalAlign="Left" />
                             <RowStyle BackColor="White" />
                             <SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
                             <SortedAscendingCellStyle BackColor="#F1F1F1" />
                             <SortedAscendingHeaderStyle BackColor="#808080" />
                             <SortedDescendingCellStyle BackColor="#CAC9C9" />
                             <SortedDescendingHeaderStyle BackColor="#383838" />
                         </asp:GridView>
                     </td>
                 </tr>
             </table>
             <br />
             <br />
             <table>
                 <tr>
                     <td>
                         <asp:Label ID="Label6" runat="server" Text="Please Enter Id: " ForeColor="Brown"
                             Font-Bold="true" Font-Italic="true"></asp:Label>
                     </td>
                     <td>
                         <asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
                     </td>
                 </tr>
                 <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">
                         <asp:Button ID="Button1" runat="server" Text="Update 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" ForeColor="Red" Font-Bold="true"></asp:Label>
                     </td>
                 </tr>
             </table>
         </center>
     </div>
     </form>
 </body>
 </html>
 
 Step 3: 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;
 namespace UpdateSPLINQApp
 {
     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(TextBox4.Text) ||
                 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
             {
                 objEntities.UpdateEmployeeData(int.Parse(TextBox4.Text), TextBox1.Text,
                     TextBox2.Text, int.Parse(TextBox3.Text));
                 GridView1.DataSource = objEntities.SelectEmployeeData();
                 GridView1.DataBind();
                 Label5.Text = "Records Updated Successfully";
                 Label5.ForeColor = System.Drawing.Color.Green;
                 TextBox1.Text = string.Empty;
                 TextBox2.Text = string.Empty;
                 TextBox3.Text = string.Empty;
                 TextBox4.Text = string.Empty;
             }
         }
         #region Instance MembersCompanyEntities objEntities = new CompanyEntities();
         #endregion
     }
 }
 
 Step 4: The output of the application looks like this:

Output2 (1).png
 
 Step 5: The update operation output of the application looks like this:

Output3 (1).png
 
 I hope this article is useful for you. I look forward for your comments and feedback. Thanks Vijay Prativadi

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