Using the <i class="emphasis">Binding</i> Class

Using the Binding Class

The Binding class represents the simple binding between the property value of an object and the property value of a control. Here is the inheritance hierarchy for this class:

Object
   Binding

As discussed in the In Depth section of this chapter, you use the Binding class to support a simple binding between the property of a control and either the property of an object or the property of the current object in a list of objects. We saw this example in the In Depth section of this chapter:

DateTimePicker1.DataBindings.Add _
    (New Binding("Value", DataSet11, "customers.DeliveryDate"))

The Binding class also lets you format values for display with the Format event and to read formatted values with the Parse event.

You can find the more notable public properties of Binding objects in Table 21.4, and their more notable events in Table 21.5. (This class has no non-inherited methods.)

Table 21.4: Noteworthy public properties of *Binding* objects.
Property	Means
BindingMemberInfo	Gets an object that contains binding information.
Control	Gets the associated control.
DataSource	Gets the binding's data source.
IsBinding	Gets whether the binding is active.
PropertyName	Gets/sets the control's data-bound property.

Table 21.5: Noteworthy public events of *Binding* objects.
Event	Means
Format	Occurs when a property is bound to a data value.
Parse	Occurs when a data-bound control's value changes.