public static TValue GetOrCreateValue <TValue>(
this IPropertyHolder propertyBag,
string propertyName,
TValue newValue,
Action <TValue> onCreated = null)
{
TValue actualNewValueProvider()
{
return(newValue);
};
return(propertyBag.GetOrCreateValue(
propertyName,
actualNewValueProvider,
onCreated));
}
public static TValue GetOrCreateValue <TValue>(
this IPropertyHolder propertyBag,
string propertyName,
Func <TValue> newValueProvider,
Action <TValue> onCreated = null)
{
if (newValueProvider == null)
{
throw new ArgumentNullException(nameof(newValueProvider));
}
TValue actualNewValueProvider()
{
return(newValueProvider.Invoke());
};
return(propertyBag.GetOrCreateValue(
propertyName,
actualNewValueProvider,
onCreated));
}