Select or enter the name of a binding. Selecting the name of an existing binding associates the binding with the form control. Entering a new name creates a new binding and associates it with the form control.
选择或输入绑定的名称。选择现有绑定的名称可以使该绑定与窗体控件关联。输入新名称可以创建新的绑定，并将其与窗体控件关联。