SetterBase.CheckSealed Method

Checks whether this object is read-only and cannot be changed.

Namespace:  System.Windows
Assembly:  PresentationFramework (in PresentationFramework.dll)

protected void CheckSealed()

Classes that derive from SetterBase must call this method before applying any changes to the state of the object. If the object is read-only and you try to modify the state of the object, an exception is thrown.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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