GridView_RowUpdating returning old values - asp.net

Question

I have a grid view in which there is functionality to update/delete rows. I am storing the data to SQL using stored procedure. When I click on Edit button and change the existing value and after clicking Update button I am getting old values.
My code is :
protected void grdNatureFormation_RowUpdating(object sender, System.Web.UI.WebControls.GridViewUpdateEventArgs e)
{
ConnectionString = GetConnectionString();
LinkButton link = (LinkButton)grdNatureFormation.Rows[e.RowIndex].FindControl("btnUpdate");
int id = Convert.ToInt32(link.CommandArgument);
TextBox title = (TextBox)grdNatureFormation.Rows[e.RowIndex].FindControl("txtTitle");
if(title != null)
{
using (SqlConnection Sqlcon = new SqlConnection(ConnectionString))
{
using (SqlCommand cmd = new SqlCommand())
{
Sqlcon.Open();
cmd.Connection = Sqlcon;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "NatureOfFormation";
cmd.Parameters.Add(new SqlParameter("#ID", SqlDbType.Int)).Value = id;
cmd.Parameters.Add(new SqlParameter("#Title", SqlDbType.VarChar)).Value = title.Text.Trim();
cmd.Parameters.Add(new SqlParameter("#Action", SqlDbType.VarChar)).Value = "update";
cmd.ExecuteNonQuery();
grdNatureFormation.EditIndex = -1;
LoadData();
}
}
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
LoadData();
}
}
private void LoadData()
{
ConnectionString = GeneralMethods.GetConnectionString();
SqlConnection Sqlcon = new SqlConnection(ConnectionString);
SqlCommand cmd = new SqlCommand();
try
{
Sqlcon.Open();
cmd.Connection = Sqlcon;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "xxx";
cmd.Parameters.Add(new SqlParameter("#Action", SqlDbType.VarChar, 50));
cmd.Parameters["#Action"].Value = "select";
SqlAda = new SqlDataAdapter(cmd);
ds = new DataSet();
SqlAda.Fill(ds);
grdNatureFormation.DataSource = ds;
grdNatureFormation.DataBind();
}
catch
{
}
finally
{
if (Sqlcon.State == ConnectionState.Open)
Sqlcon.Close();
Sqlcon.Dispose();
cmd.Dispose();
}
}
I searched over internet for the issue and most of the posts suggest to place the data binding method in the (!Page.IsPostBack) , but in my case it is already in the same condition but not getting value.
What should I do to get new value in RowUpdating event?

Answer 1

RowUpdating is called before the gridview values are updated. You need to put your code into the RowUpdated event handler.
For more info, see the manual: GridView Events
RowUpdating - Occurs when a row's Update button is clicked, but before the GridView control updates the row.
RowUpdated - Occurs when a row's Update button is clicked, but after the GridView control updates the row.