Gridview Edit, Update, Delete Button in Asp.net C#

In my Previous Articles about Gridview Related :

1. Display Gridview Selected Row Data when we click on row
2. Loading Gridview Records from Selecting Page Number's Wise
3. Delete GridView Selected Row Record through Button
4. Fix Gridview Header While Scrolling in Asp.net
5. Gridview Checkbox Selected Row Data Display in Textbox
6. Load XML File Into ASP.NET Gridview

Css Code

 <style type="text/css">
     #GridView1
     {
         background:#fafafa;               
     }
     #GridView1 .HeaderStyle
     {
       background:#0066cc;   
       color:#ffffff;
       padding:7px 10px 7px 10px;
     }
     #GridView1 th
     {
         padding:10px 15px 10px 15px;
     }
     #GridView1 tr
     {
         padding:5px 10px 5px 10px;
         text-align:left;
     } 
     
     #GridView1 tr:hover
     {
         background:#6699cc;
         color:#ffffff;         
         padding:5px 10px 5px 10px;
         text-align:left;
     }  
     .input-disabled
     {
         background-color:#EBEBE4;
         border:1px solid #ABADB3;
         padding:2px 1px;
     }
</style>

C# Coding

C# Coding : Namespace

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;

C# Coding : Page Load

namespace WebApplication1.Gridviews
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["mcon"].ConnectionString);
        SqlDataAdapter da = new SqlDataAdapter();
        DataSet ds;      
  
        protected void Page_Load(object sender, EventArgs e)
        {
            if(!IsPostBack)
            {
                FillGridView();
            }
        }
     }
}

C# Coding : Bing Gridview

  public void FillGridView()
   {
    try
    {
     ds = new DataSet();
     da = new SqlDataAdapter("select Book_id, Book_name, Book_author, Book_Publisher_name from Book", con);
     da.Fill(ds);
     if (ds.Tables[0].Rows.Count > 0)
     {
      GridView1.DataSource = ds;
      GridView1.DataBind();
     }
    }
    catch
    {
      throw;
    }
 }

C# Coding : Gridview Editiong

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            GridViewRow gdrow = GridView1.Rows[e.RowIndex];
            Label lblbookID = (Label)gdrow.FindControl("lblbookid");
            TextBox txtbookname = (TextBox)gdrow.Cells[2].Controls[0];
            TextBox txtbookauthor = (TextBox)gdrow.Cells[3].Controls[0];
            TextBox txtbookpubname = (TextBox)gdrow.Cells[4].Controls[0];
            SqlCommand cmd = new SqlCommand("Update Book Set Book_name='" + txtbookname.Text + "', Book_author='" + txtbookauthor.Text + "',Book_Publisher_name='" + txtbookpubname.Text + "' where Book_id='" + lblbookID.Text + "'", con);
            con.Open();
            cmd.ExecuteNonQuery();
            con.Close();
            GridView1.EditIndex = -1;
            FillGridView();
            lbldisplay.Text = " Book ID : " + lblbookID.Text + " Updated Successfully...";
        }

C# Coding : Gridview Updating

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            GridViewRow gdrow = GridView1.Rows[e.RowIndex];
            Label lblbookID = (Label)gdrow.FindControl("lblbookid");
            TextBox txtbookname = (TextBox)gdrow.Cells[2].Controls[0];
            TextBox txtbookauthor = (TextBox)gdrow.Cells[3].Controls[0];
            TextBox txtbookpubname = (TextBox)gdrow.Cells[4].Controls[0];
            SqlCommand cmd = new SqlCommand("Update Book Set Book_name='" + txtbookname.Text + "', Book_author='" + txtbookauthor.Text + "',Book_Publisher_name='" + txtbookpubname.Text + "' where Book_id='" + lblbookID.Text + "'", con);
            con.Open();
            cmd.ExecuteNonQuery();
            con.Close();
            GridView1.EditIndex = -1;
            FillGridView();
            lbldisplay.Text = " Book ID : " + lblbookID.Text + " Updated Successfully...";
        }

C# Coding : Gridview Deleting

 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
            GridViewRow gdrow = GridView1.Rows[e.RowIndex];
            Label lblbookID = (Label)gdrow.FindControl("lblbookid");
            SqlCommand cmd = new SqlCommand("Delete Book where Book_Id='" + lblbookID.Text + "'", con);
            con.Open();
            cmd.ExecuteScalar();
            con.Close();
            GridView1.EditIndex = -1;
            FillGridView();
            lbldisplay.Text = " Book ID : " + lblbookID.Text + " Deleted Successfully...";
        }

C# Coding : Gridview Canceling

protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
        {
            GridView1.EditIndex = -1;
            FillGridView();
        }