private void ManageProductMode()
{
if (string.IsNullOrEmpty(Request.QueryString[CMSConfig.QueryString.ProductID]))
{
BeginProductAddMode();
}
else
{
int productId = 0;
int.TryParse(Request.QueryString[CMSConfig.QueryString.ProductID], out productId);
if (productId > 0)
{
ViewState[CMSConfig.ConstantManager.ProductID] = productId;
BeginProductEditMode(productId);
}
else
BeginProductAddMode();
}
}