PropertyDescriptor.CanResetValue(Object) Method
Definition
Important
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When overridden in a derived class, returns whether resetting an object changes its value.
public:
abstract bool CanResetValue(System::Object ^ component);public abstract bool CanResetValue (object component);abstract member CanResetValue : obj -> boolPublic MustOverride Function CanResetValue (component As Object) As BooleanParameters
- component
- Object
The component to test for reset capability.
Returns
true if resetting the component changes its value; otherwise, false.
Remarks
Typically, this method is implemented through reflection.
Notes to Implementers
When overridden in a derived class, this method looks for a DefaultValueAttribute. If it finds one, it compares the value of the attribute with the property's current value. It returns true when the default value does not match the property's current value. If this method cannot find a DefaultValueAttribute, it looks for a "ShouldPersistMyProperty" method that you need to implement yourself. If this is found, CanResetValue(Object) returns what "ShouldPersistMyProperty" returns. Otherwise, it looks for a "ResetMyProperty" method that you need to implement yourself. If this is found, CanResetValue(Object) returns true. If it cannot find a DefaultValueAttribute, a "ShouldPersistMyProperty" method, or a "ResetMyProperty" method, then it returns false.
