protected void btnAdd_Click(object sender, EventArgs e)
{
ProductManager manager = new ProductManager(this);
manager.InsertProductPart(
new ProductPart
{
Name = txtProductPart.Text,
ParentId = RadTreeView1.SelectedNode != null ? Convert.ToInt32(RadTreeView1.SelectedNode.Value) : (int?)null,
ModifiedDate = DateTime.Now,
//CompanyId = (int)Company.MatrixId,
Quantity = Convert.ToInt16(txtQuantity.Text)
});
BindTree();
}