.net - DataGrid Values Not Updating After The Edit / Update Function?

I am using the following code to update the data in my datagrid.

But when I click update the value is updated in the database but it still shows old value in datagrid.

If I refresh the page after that then datagrid shows the updated value.

Code On Update Command:

protected void MySQLDataGrid2_UpdateCommand(object source, DataGridCommandEventArgs e)
{
string newData;
TextBox aTextBox;
aTextBox = (TextBox)(e.Item.Cells[0].Controls[0]);
newData = aTextBox.Text;
decimal comm = Convert.ToDecimal(newData);
string UpdateHiveCommission = "Update tbl_HiveCommission set Commission = '" + Convert.ToDecimal(newData) + "'";
MySqlConnection objMyCon3 = new MySqlConnection(strProvider);
objMyCon3.Open();
MySqlCommand cmd3 = new MySqlCommand(UpdateHiveCommission, objMyCon3);
cmd3.ExecuteNonQuery();
objMyCon3.Close();
MySQLDataGrid2.EditItemIndex = -1;
MySQLDataGrid2.DataBind();
}