protected void MainGridView_RowInserting(object sender, DevExpress.Web.Data.ASPxDataInsertingEventArgs e)
{
ASPxTextBox RoleName = (ASPxTextBox)MainGridView.FindEditRowCellTemplateControl((GridViewDataColumn)MainGridView.Columns[1], "txtProfil");
string rolename = RoleName.Text.Trim();
if (!Roles.RoleExists(rolename))
{
Roles.CreateRole(rolename);
}
e.Cancel = true;
MainGridView.CancelEdit();
LoadGridView();
}