How to Edit the data using C# with gridview

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Hello,

I am using grid view for displaying the data and want to update or delete the data and want to display in grid view as i had done some code:
I am writing the code in button for Update please give me some suggestion

C#

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

namespace asp2
{
    public partial class formtest : System.Web.UI.Page
    {
        SqlConnection conn = new SqlConnection(@"data source=.\SQLEXPRESS;database= Registration; trusted_connection=yes");
        SqlDataAdapter sd = new SqlDataAdapter();
        DataSet ds = new DataSet();
        
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Btnadd_Click(object sender, EventArgs e)
        {
            sd.InsertCommand = new SqlCommand("INSERT INTO formtest(firstname, username, pass, email_id) VALUES(@firstname, @username, @pass, @email_id)",conn);
            sd.InsertCommand.Parameters.AddWithValue("@firstname",Tbfname.Text);
            sd.InsertCommand.Parameters.AddWithValue("@username",TbUname.Text);
            sd.InsertCommand.Parameters.AddWithValue("@pass",TbPass.Text);
            sd.InsertCommand.Parameters.AddWithValue("@email_id", Tbemail.Text);
            conn.Open();
            sd.InsertCommand.ExecuteNonQuery();
            conn.Close();
        }

        protected void Btndisplay_Click(object sender, EventArgs e)
        {
            sd.UpdateCommand = new SqlCommand("update formtest set firstname=@firstname, username=@username, pass=@pass, email_id=@email_id where ID=@ID",conn);
            sd.UpdateCommand.Parameters.AddWithValue("@firstname", Tbfname.Text);
            sd.UpdateCommand.Parameters.AddWithValue("@username", TbUname.Text);
            sd.UpdateCommand.Parameters.AddWithValue("@pass", TbPass.Text);
            sd.UpdateCommand.Parameters.AddWithValue("@email_id", Tbemail.Text);
            sd.UpdateCommand.Parameters.AddWithValue("@ID", );#STUCKED HERE

            
        }
    }
}

Posted 26-May-12 8:00am

selflearning

Updated 26-May-12 8:56am

Monjurul Habib

v3

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3 solutions

Solution 2

Abhinav already provided some good links for dealing with single rows. If you are looking for bulk updates, you can also try following:

Walkthrough: Performing Bulk Updates to Rows Bound to a GridView Web Server Control
Bulk Edit with GridView without xxxDataSource (SqlDataSource, ObjectDataSource, etc.)
Real World GridView: Bulk Editing

Posted 26-May-12 9:19am

Monjurul Habib

Comments

Abhinav S 27-May-12 13:18pm

5.

Monjurul Habib 28-May-12 4:32am

thanks

Solution 5

C#

protected void grdPersonsDetails_RowCommand(object sender, GridViewCommandEventArgs e)
       {
           cmd.Connection = con;
           int PersonId = int.Parse(Request.QueryString["Id"].ToString());
           if (e.CommandName == "EditContactPerson")
           {

               btnUpdate.Visible = true;
               btnSave.Visible = false;

               cmd.CommandType = CommandType.Text;
               cmd.CommandText = "SELECT ContactPersonId,Name,Address,Place,Phone,ImagePath FROM tbl_ContactPerson WHERE ContactPersonId=@ContactPersonId";
               cmd.Parameters.AddWithValue("@ContactPersonId", PersonId);
               con.Open();
               SqlDataReader dr = cmd.ExecuteReader();
               while(dr.Read())
               {
                   txtName.Text = dr["Name"].ToString();
                   txtAddress.Text = dr["Address"].ToString();
                   txtPlace.Text = dr["Place"].ToString();
                   txtPhone.Text = dr["Phone"].ToString();
                   hdfContactPersonId.Value = dr["ContactPersonId"].ToString();
               }
               con.Close();
           }
           if (e.CommandName == "Delete")
           {
               cmd.CommandType = CommandType.Text;
               cmd.CommandText = "DELETE FROM tbl_ContactPerson WHERE ContactPersonId=@ContactPersonId";
               cmd.Parameters.AddWithValue("@ContactPersonId", PersonId);
               con.Open();
               cmd.ExecuteNonQuery();
               con.Close();
               FillData();

            }
       }

Update and Delete function onRowCommand event

Posted 13-Dec-13 19:23pm

Attoor Krishna

Updated 13-Dec-13 19:26pm

v2

Comments

CHill60 14-Dec-13 8:02am

Where is the update that the OP needed (a year ago)

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Abhinav S · Accepted Answer · 2012-05-26T08:06:00

Solution 1

Try
http://www.dotnetspark.com/kb/643-how-to-editupdatedelete-gridview.aspx[^]
http://www.c-sharpcorner.com/UploadFile/mgold/EditableGridView11222005225133PM/EditableGridView.aspx[^]
Full-featured Editable GridView Control[^]

Posted 26-May-12 8:06am

Abhinav S

Comments

selflearning 26-May-12 14:30pm

thanks for the link but i want to use it in button not in a grid view.

Monjurul Habib 26-May-12 15:19pm

nice links..indeed. my 5+

Abhinav S 27-May-12 13:18pm

Thank you SA.

Monjurul Habib 28-May-12 4:33am

its habib :)

Abhinav S 28-May-12 7:37am

Copy pasting woes. Sorry. My mistake.
:)