/// <summary>
/// Fetch all property values from each target framework and combine them.
/// </summary>
private static IEnumerable <string> GetAggregatePropertyValues(
IVsTargetFrameworks tfms,
string propertyName)
{
// Only non-null values are added to the list as part of the split.
return(tfms
.Cast <IVsTargetFrameworkInfo>()
.SelectMany(tfm => MSBuildStringUtility.Split(GetPropertyValueOrNull(tfm.Properties, propertyName))));
}
// Trying to fetch a list of property value from all tfm property bags.
private static IEnumerable <TValue> GetNonEvaluatedPropertyOrNull <TValue>(
IVsTargetFrameworks tfms,
string propertyName,
Func <string, TValue> valueFactory)
{
return(tfms
.Cast <IVsTargetFrameworkInfo>()
.Select(tfm =>
{
var val = GetPropertyValueOrNull(tfm.Properties, propertyName);
return val != null ? valueFactory(val) : default(TValue);
})
.Distinct());
}