public void AddProviderToTypeAndInstance() {
var instance = new Base();
// Before adding TDPs
var props = TypeDescriptor.GetProperties(instance).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B" }, props);
TypeDescriptionProvider typeProvider = null;
TypeDescriptionProvider instanceProvider = null;
try {
typeProvider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(typeProvider, typeof(Base));
instanceProvider = new TestTypeDescriptionProvider(instance);
TypeDescriptor.AddProvider(instanceProvider, instance);
// After adding TDPs
props = TypeDescriptor.GetProperties(instance).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B", "CustomProperty1", "CustomProperty2" }, props);
}
finally {
// Ensure we remove the providers we attached.
TypeDescriptor.RemoveProvider(typeProvider, typeof(Base));
TypeDescriptor.RemoveProvider(instanceProvider, instance);
}
}
public void AddProviderToTypeAndInstance()
{
var instance = new Base();
// Before adding TDPs
var props = TypeDescriptor.GetProperties(instance).Cast <PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B" }, props);
TypeDescriptionProvider typeProvider = null;
TypeDescriptionProvider instanceProvider = null;
try {
typeProvider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(typeProvider, typeof(Base));
instanceProvider = new TestTypeDescriptionProvider(instance);
TypeDescriptor.AddProvider(instanceProvider, instance);
// After adding TDPs
props = TypeDescriptor.GetProperties(instance).Cast <PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B", "CustomProperty1", "CustomProperty2" }, props);
}
finally {
// Ensure we remove the providers we attached.
TypeDescriptor.RemoveProvider(typeProvider, typeof(Base));
TypeDescriptor.RemoveProvider(instanceProvider, instance);
}
}
public void AddMultipleProvidersToType()
{
// Before adding TDPs
var props = TypeDescriptor.GetProperties(typeof(Base)).Cast <PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B" }, props);
TypeDescriptionProvider associatedMetadataProvider = null;
TypeDescriptionProvider testProvider = null;
try {
associatedMetadataProvider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(associatedMetadataProvider, typeof(Base));
testProvider = new TestTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(testProvider, typeof(Base));
// After adding TDPs
props = TypeDescriptor.GetProperties(typeof(Base)).Cast <PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B", "CustomProperty1", "CustomProperty2" }, props);
}
finally {
// Ensure we remove the providers we attached.
TypeDescriptor.RemoveProvider(associatedMetadataProvider, typeof(Base));
TypeDescriptor.RemoveProvider(testProvider, typeof(Base));
}
// Add providers in reverse order
try {
testProvider = new TestTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(testProvider, typeof(Base));
associatedMetadataProvider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(associatedMetadataProvider, typeof(Base));
props = TypeDescriptor.GetProperties(typeof(Base)).Cast <PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B", "CustomProperty1", "CustomProperty2" }, props);
}
finally {
// Ensure we remove the providers we attached.
TypeDescriptor.RemoveProvider(associatedMetadataProvider, typeof(Base));
TypeDescriptor.RemoveProvider(testProvider, typeof(Base));
}
}
public void AddMultipleProvidersToType() {
// Before adding TDPs
var props = TypeDescriptor.GetProperties(typeof(Base)).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B" }, props);
TypeDescriptionProvider associatedMetadataProvider = null;
TypeDescriptionProvider testProvider = null;
try {
associatedMetadataProvider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(associatedMetadataProvider, typeof(Base));
testProvider = new TestTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(testProvider, typeof(Base));
// After adding TDPs
props = TypeDescriptor.GetProperties(typeof(Base)).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B", "CustomProperty1", "CustomProperty2" }, props);
}
finally {
// Ensure we remove the providers we attached.
TypeDescriptor.RemoveProvider(associatedMetadataProvider, typeof(Base));
TypeDescriptor.RemoveProvider(testProvider, typeof(Base));
}
// Add providers in reverse order
try {
testProvider = new TestTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(testProvider, typeof(Base));
associatedMetadataProvider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(associatedMetadataProvider, typeof(Base));
props = TypeDescriptor.GetProperties(typeof(Base)).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B", "CustomProperty1", "CustomProperty2" }, props);
}
finally {
// Ensure we remove the providers we attached.
TypeDescriptor.RemoveProvider(associatedMetadataProvider, typeof(Base));
TypeDescriptor.RemoveProvider(testProvider, typeof(Base));
}
}
