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EntityObject.ReportPropertyChanging Method

Notifies the change tracker that a property change is pending.

Namespace:  System.Data.Objects.DataClasses
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

'Declaration
Protected Overrides NotOverridable Sub ReportPropertyChanging ( _
	property As String _
)

Parameters

property
Type: System.String

The name of the changing property.

ExceptionCondition
ArgumentNullException

property is Nothing.

When an entity type is generated by the Entity Data Model tools, the ReportPropertyChanging method is called before a property change to cache the current value of the property in the IEntityChangeTracker so that this value can be used as the original value for the property.

This method calls the EntityMemberChanging method in the change tracker.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5 SP1

.NET Framework Client Profile

Supported in: 4
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