DataTable table= BLLPackageCategory.SelectType();
comboBox1.ValueMember = "Id";
comboBox1.DisplayMember = "Name";
comboBox1.DataSource = table.DefaultView;
DataTable table= BLLPackageCategory.SelectType();
comboBox1.ValueMember = "Id";
comboBox1.DisplayMember = "Name";
comboBox1.DataSource = table.DefaultView;