Make sure that no objects are selected in Database Diagram designer by clicking anywhere within the designer except on an object.
确保没有在数据库关系图设计器中选择任何对象，方法是在该设计器中对象以外的任意位置单击。
For example, when you first drag a database table onto the designer, an object is created with properties that correspond to the table's columns.
渚嫔当您第一次拖动到设计器的数据库表，与属性对应于表已经列被创建对象。
This designer provides a rich user interface for creating an object model from an existing database.
此设计器提供了用于从现有数据库创建对象模型的丰富用户界面。
This designer provides a rich user interface for creating an object model from an existing database.
此设计器提供了用于从现有数据库创建对象模型的丰富用户界面。
应用推荐