/// <summary>
/// Called by SetValue or ClearValue to verify that the property
/// can be changed.
/// </summary>
private PropertyMetadata SetupPropertyChange(DependencyPropertyKey key, out DependencyProperty dp)
{
if ( key != null )
{
dp = key.DependencyProperty;
if ( dp != null )
{
dp.VerifyReadOnlyKey(key);
// Get type-specific metadata for this property
return dp.GetMetadata(DependencyObjectType);
}
else
{
throw new ArgumentException(SR.Get(SRID.ReadOnlyKeyNotAuthorized, dp.Name));
}
}
else
{
throw new ArgumentNullException("key");
}
}
/// <summary>
/// Called by SetValue or ClearValue to verify that the property
/// can be changed.
/// </summary>
private PropertyMetadata SetupPropertyChange(DependencyPropertyKey key, out DependencyProperty dp)
{
if ( key != null )
{
dp = key.DependencyProperty;
Debug.Assert(dp != null);
dp.VerifyReadOnlyKey(key);
// Get type-specific metadata for this property
return dp.GetMetadata(DependencyObjectType);
}
else
{
throw new ArgumentNullException("key");
}
}
