public void DeferredValueSharedTest()
{
string text = @"
<test:DeferredDictionary xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'
xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
xmlns:test='clr-namespace:Granular.Presentation.Tests.Markup;assembly=Granular.Presentation.Tests'>
<test:TestDictionaryValue x:Key='key1'/>
<test:TestDictionaryValue x:Key='key2' x:Shared='false'/>
</test:DeferredDictionary>";
DeferredDictionary dictionary = (DeferredDictionary)XamlLoader.Load(XamlParser.Parse(text));
Assert.IsTrue(dictionary.ContainsKey("key1"));
Assert.IsTrue(dictionary.ContainsKey("key2"));
ValueProvider valueProvider1 = dictionary["key1"] as ValueProvider;
ValueProvider valueProvider2 = dictionary["key2"] as ValueProvider;
Assert.IsNotNull(valueProvider1);
Assert.IsNotNull(valueProvider2);
TestDictionaryValue value1 = valueProvider1.ProvideValue() as TestDictionaryValue;
TestDictionaryValue value2 = valueProvider2.ProvideValue() as TestDictionaryValue;
Assert.IsNotNull(value1);
Assert.IsNotNull(value2);
TestDictionaryValue value1a = valueProvider1.ProvideValue() as TestDictionaryValue;
TestDictionaryValue value2a = valueProvider2.ProvideValue() as TestDictionaryValue;
Assert.IsTrue(ReferenceEquals(value1, value1a));
Assert.IsFalse(ReferenceEquals(value2, value2a));
}
public object GetValueKey(XamlElement element)
{
XamlMember keyMember = element.Members.SingleOrDefault(member => member.Name.LocalName == "Key");
if (keyMember != null)
{
object value = keyMember.Values.Single();
return(value is XamlElement?XamlLoader.Load((XamlElement)value) : value);
}
XamlMember partialKeyMember = element.Members.SingleOrDefault(member => member.Name.LocalName == "PartialKey");
if (partialKeyMember != null)
{
return(TestDictionaryValue.CreateKey(partialKeyMember.Values.Single().ToString()));
}
throw new Granular.Exception($"Can't create value key from \"{element.Name}\"");
}