/// <summary>
/// Gets the underlying bound value.
/// </summary>
/// <returns>The underlying bound value.</returns>
protected T GetUnderlyingValue()
{
if (!IsReadable)
{
throw new InvalidOperationException(PresentationStrings.BindingIsWriteOnly);
}
return(getter(PresentationFoundation.GetDataSourceWrapper(dependencyValue.Owner.DependencyDataSource)));
}
/// <summary>
/// Sets the underlying bound value.
/// </summary>
/// <param name="value">The value to set.</param>
protected void SetUnderlyingValue(T value)
{
if (!IsWritable)
{
throw new InvalidOperationException(PresentationStrings.BindingIsReadOnly);
}
var owner = dependencyValue.Owner;
var metadata = dependencyValue.Property.GetMetadataForOwner(owner.GetType());
if (metadata.CoerceValueCallback != null)
{
value = metadata.CoerceValue <T>(owner, value);
}
setter(PresentationFoundation.GetDataSourceWrapper(dependencyValue.Owner.DependencyDataSource), value);
dependencyValue.DigestImmediately();
}
