使用DatagridviewImageColumn删除DatagridviewRows

Question

I have a DataGridView which is bounded to a DataTable which have a foreign key to another DataTable . I added a DatagridViewImageColumn to delete rows from these two DataTable . The code I have used is below.

private void dechargeDataGridView_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
    switch (dechargeDataGridView.Columns[e.ColumnIndex].Name)
    {
        case "delete":

            if (con.State != ConnectionState.Open)
            {
                con.Open();
            }

            SqlCommand deleteDechargeCmd = new SqlCommand("DELETE FROM [Decharge] WHERE NumeroDecharge = @NumDecharge", con);
            deleteDechargeCmd.Parameters.AddWithValue("@NumDecharge", dechargeDataGridView.Rows[e.RowIndex].Cells[0].Value.ToString());


            SqlCommand deleteLigneDCmd = new SqlCommand("DELETE FROM [LigneDecharge] WHERE NumeroDecharge = @Num", con);
            deleteLigneDCmd.Parameters.AddWithValue("@Num", dechargeDataGridView.Rows[e.RowIndex].Cells[0].Value.ToString());


            DialogResult result = MessageBox.Show("Voulez vous supprimer le Decharge de Livraison?", "Confirm product deletion", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
            if (result == DialogResult.Yes)
            {   
                deleteDechargeCmd.ExecuteNonQuery();
                deleteLigneDCmd.ExecuteNonQuery();
                MessageBox.Show("le Decharge de Livraison est supprimé avec succées");
                dechargeDataGridView.Rows.RemoveAt(e.RowIndex);
            }
            else
            {
            }
            con.Close();
            break;
    }
}

This code doesn't give any error. It executed perfectly but in reality no rows is deleted from the two tables. I don't know where is the error in this code??

Answer 1

This code seems to be correct, it must works fine, so check the value of the

parameters may be the cell is not

dechargeDataGridView.Rows[e.RowIndex].Cells[0].Value.ToString()

so try to write the column name like this:

dechargeDataGridView.Rows[e.RowIndex].Cells["ColumnName"].Value.ToString()