Delete selected row in datagrid and also in database?

Question

I want to delete from database when i select a row in datagridview. I tried 2 different methods. With this method i can delete only a few rows.

cmd.CommandText = "delete from dbo.Scenarist  where idScenarist=@idScenarist";
cmd.Parameters.Add(new SqlParameter("@idScenarist", dataGridScenarist.SelectedIndex));

I tried also with SelectedRows, but i have this error:

'System.Windows.Controls.DataGrid' does not contain a definition for 'SelectedRow' and no extension method 'SelectedRow' accepting a first argument of type 'System.Windows.Controls.DataGrid' could be found (are you missing a using directive or an assembly reference?)

Is a WPF App and i can't use DataGridView.Only DataGrid. Thank you!

Answer 1

You would probably want to use DataGridView here. It provides access to SelectedRows which is a collection of DataGridViewRow s. Loop through that collection and update your @idScenarist parameter with the value from the column containing the corresponding id, and execute the delete command object in each loop.

Here is a basic example:

        cmd.CommandText = "delete from dbo.Scenarist  where idScenarist=@idScenarist";
        SqlParameter parm = new SqlParameter("@idScenarist", SqlDbType.Int);
        cmd.Parameters.Add(parm);

        foreach (DataGridViewRow row in dataGridScenarist.SelectedRows)
        {
            parm.Value = row.Cells["idScenarist"].Value;
            cmd.ExecuteNonQuery();
        }