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ObjectStateEntry.ChangeState Method

Changes state of the entry to the specified EntityState value.

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

public abstract void ChangeState(
	EntityState state
)

Parameters

state
Type: System.Data.EntityState
The EntityState value to set for the State property of the entry.

ExceptionCondition
ArgumentNullException

When original is null.

InvalidOperationException

When trying to change the state to Detached from any other [T:System.Data.EntityState.]

-or-

When trying to change the state of an entity key entry to any state besides Unchanged.

The ChangeState method is used to change the state of both entity object and relationship entries.

Changing the state of an object does not affect related objects in the object graph.

When you change the EntityState of an entity object entry to Modified, all of the properties of the object are marked as modified, regardless of the current or original values.

When the EntityState of an entity object entry is changed to Added, Deleted, or Detached, the relationship entries for the object are also updated.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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