private void Initialize() { ParametrsTypeComboBox.SelectedIndex = 0; ToolsTypeGrid.DataSource = TechStoreManager.ToolsTypesBS; ToolsTypeGrid.Columns["ToolsGroupID"].Visible = false; ToolsTypeGrid.Columns["ToolsTypeID"].Visible = false; ParametrsDT = TechStoreManager.CreateTableParametrs(); ParametrsGrid.DataSource = ParametrsDT; ParametrsGrid.Columns["ParametrID"].Visible = false; }