public void Test_BindSource_IndexPropertyInt()
{
var viewModel = new TestViewModel();
var bindSource = new BindContext(viewModel, "TestViewModel2.TestViewModel3.IntValues[1]");
var viewModel2 = new TestViewModel2();
viewModel.TestViewModel2 = viewModel2;
var viewModel3 = new TestViewModel3();
viewModel2.TestViewModel3 = viewModel3;
Assert.AreEqual(null, bindSource.PropertyType);
Assert.AreEqual(null, bindSource.Value);
var list = new ObservableCollection<int>();
viewModel3.IntValues = list;
Assert.AreEqual(list, bindSource.Source);
Assert.AreEqual(typeof(int), bindSource.PropertyType);
Assert.AreEqual(default(int), bindSource.Value);
list.Add(1);
list.Add(2);
Assert.AreEqual(2, bindSource.Value);
bindSource.Value = 2;
Assert.AreEqual(2, list[1]);
list.RemoveAt(1);
Assert.AreEqual(default(int), bindSource.Value);
}
public void Test_MemoryLeak_BindSource()
{
var v = new TestViewModel();
var v2 = new TestViewModel2();
var reference = new WeakReference(v);
var reference2 = new WeakReference(v2);
int changeCount = 0;
var bindSource = new BindContext(v, "TestViewModel2.Name");
bindSource.SourceMode = SourceMode.Property;
bindSource.SourceChanged += (sender, args) =>
{
changeCount++;
Assert.AreNotEqual(args.OldSource, args.NewSource);
Assert.AreEqual(SourceMode.Property, args.SourceMode);
};
v.TestViewModel2 = v2;
Assert.AreEqual(0, changeCount);
v2 = null;
v.TestViewModel2 = null;
GC.Collect();
Assert.IsFalse(reference2.IsAlive);
v = null;
GC.Collect();
Assert.IsFalse(reference.IsAlive);
GC.KeepAlive(bindSource);
}
public void Test_BindSource_IndexPropertyDictionary()
{
var viewModel = new TestViewModel();
var bindSource = new BindContext(viewModel, "TestViewModel2.StringValues[yohan]");
Assert.IsNull(bindSource.Source);
Assert.IsNull(bindSource.Value);
var viewModel2 = new TestViewModel2();
viewModel.TestViewModel2 = viewModel2;
Assert.IsNull(bindSource.Source);
Assert.IsNull(bindSource.Value);
var dictionary = new Dictionary<string, string>();
viewModel.TestViewModel2.StringValues = dictionary;
Assert.AreEqual(dictionary, bindSource.Source);
Assert.IsNull(bindSource.Value);
viewModel.TestViewModel2.StringValues = new Dictionary<string, string>();
viewModel.TestViewModel2.StringValues.Add("yohan", "1");
Assert.AreEqual("1", bindSource.Value);
}
/// <summary>
/// Attaches the event to bind source.
/// </summary>
/// <param name="data">
/// The data.
/// </param>
/// <param name="eventName">
/// The event name.
/// </param>
/// <param name="filter">
/// The filter.
/// </param>
/// <returns>
/// The <see cref="WeakBinding"/>.
/// </returns>
internal WeakBinding AttachSourceEvent(BindContext data, string eventName, WeakEventFilterHandler filter = null)
{
this.SourceEvent.AttachEvent(data, eventName, SourceEventHandlerName, filter);
return(this);
}
/// <summary>
/// Attach event to bind source.
/// </summary>
/// <param name="target">
/// The target.
/// </param>
/// <param name="eventName">
/// The event name.
/// </param>
/// <param name="filter">
/// The filter.
/// </param>
/// <returns>
/// The <see cref="WeakBinding"/>.
/// </returns>
public WeakBinding AttachSourceEvent(object target, string eventName, WeakEventFilterHandler filter = null)
{
BindContext bindContext = this.GetBindContext(target, null);
return(this.AttachSourceEvent(bindContext, eventName, filter));
}
/// <summary>
/// Initializes a new instance of the <see cref="NotifyPropertyObservation"/> class.
/// </summary>
/// <param name="data">
/// The data.
/// </param>
/// <param name="property">
/// The property.
/// </param>
/// <param name="childProperty">
/// The child property.
/// </param>
public NotifyPropertyObservation(BindContext data, string property, string childProperty)
{
this.data = data;
if (!string.IsNullOrEmpty(childProperty))
{
this.child = data.CreatePropertyObservation(childProperty);
}
this.Property = property;
}
/// <summary>
/// Initializes a new instance of the <see cref="NotifyIndexPropertyObservation"/> class.
/// </summary>
/// <param name="data">
/// The data.
/// </param>
/// <param name="property">
/// The property.
/// </param>
/// <param name="childProperty">
/// The child property.
/// </param>
public NotifyIndexPropertyObservation(BindContext data, string property, string childProperty)
: base(data, property, childProperty)
{
}
/// <summary>
/// Attaches the specific event.
/// </summary>
/// <param name="type">
/// The type.
/// </param>
/// <param name="eventName">
/// The event name.
/// </param>
/// <param name="handlerName">
/// The handler name.
/// </param>
/// <param name="filter">
/// The filter.
/// </param>
public void AttachEvent(Type type, string eventName, string handlerName, WeakEventFilterHandler filter = null)
{
this.DetachEvent();
this.EventName = eventName;
this.Data = null;
this.targetType = type;
this.eventAction = this.AttachEvent(eventName, handlerName, filter);
}
/// <summary>
/// Attaches the specific event.
/// </summary>
/// <param name="context">
/// The source.
/// </param>
/// <param name="eventName">
/// The event name.
/// </param>
/// <param name="handlerName">
/// The handler name.
/// </param>
/// <param name="filter">
/// The filter.
/// </param>
public void AttachEvent(
BindContext context,
string eventName,
string handlerName,
WeakEventFilterHandler filter = null)
{
this.DetachEvent();
context.SourceChanged += this.OnSourceChanged;
this.EventName = eventName;
this.HandlerName = handlerName;
this.Data = context;
object value = this.Data.GetTarget();
if (value != null)
{
this.targetType = value.GetType();
this.eventTarget = new WeakReference(value);
this.eventAction = this.AttachEvent(eventName, handlerName, filter);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MethodInvoker"/> class.
/// </summary>
/// <param name="context">
/// The source.
/// </param>
/// <param name="method">
/// The method.
/// </param>
/// <param name="parameters">
/// The parameters.
/// </param>
public MethodInvoker(BindContext context, string method, IEnumerable<BindContext> parameters)
{
this.Context = context;
this.Method = method;
this.Parameters = parameters;
}
public void Test_BindSource_IndexPropertyInt2()
{
var viewModel = new TestViewModel();
var bindSource = new BindContext(viewModel, "TestViewModel2.TestViewModel3.TestViewModels[1].Name");
var viewModel2 = new TestViewModel2();
viewModel.TestViewModel2 = viewModel2;
var viewModel3 = new TestViewModel3();
viewModel2.TestViewModel3 = viewModel3;
Assert.AreEqual(null, bindSource.Value);
Assert.AreEqual(null, bindSource.Source);
var testViewModels = new ObservableCollection<TestViewModel4>();
viewModel3.TestViewModels = testViewModels;
Assert.AreEqual(null, bindSource.Source);
Assert.AreEqual(null, bindSource.Value);
var t4 = new TestViewModel4();
var t41 = new TestViewModel4();
testViewModels.Add(t4);
testViewModels.Add(t41);
Assert.AreEqual(t41, bindSource.Source);
Assert.AreEqual(null, bindSource.Value);
t41.Name = Name;
Assert.AreEqual(Name, bindSource.Value);
testViewModels.RemoveAt(1);
Assert.AreEqual(null, bindSource.Source);
Assert.AreEqual(null, bindSource.Value);
}
public void Test_BindSource_RecurisonProperty2()
{
var viewModel = new TestViewModel();
var bindSource = new BindContext(viewModel, "TestViewModel2.TestViewModel3.Name");
Assert.AreEqual(null, bindSource.Source);
Assert.AreEqual(null, bindSource.Value);
Assert.AreEqual(null, bindSource.PropertyType);
var viewModel2 = new TestViewModel2();
viewModel.TestViewModel2 = viewModel2;
Assert.AreEqual(null, bindSource.Source);
Assert.AreEqual(null, bindSource.Value);
Assert.AreEqual(null, bindSource.PropertyType);
var viewModel3 = new TestViewModel3();
viewModel2.TestViewModel3 = viewModel3;
Assert.AreEqual(viewModel3, bindSource.Source);
Assert.AreEqual(typeof(string), bindSource.PropertyType);
viewModel3.Name = Name;
Assert.AreEqual(Name, bindSource.Value);
}
public void Test_BindSource_NullProperty()
{
var viewModel = new TestViewModel();
var weakBindSource = new BindContext(viewModel, null);
Assert.AreEqual(viewModel, weakBindSource.Source);
Assert.AreEqual(null, weakBindSource.PropertyType);
Assert.AreEqual(viewModel, weakBindSource.Value);
}
public void Test_BindSource_NotifyValueChanged()
{
var viewModel = new TestViewModel();
var bindSource = new BindContext(viewModel, "Name");
int change = 0;
bindSource.SourceChanged += (sender, args) => { change++; };
bindSource.Update(true);
Assert.AreEqual(1, change);
}
public void Test_BindSource_NormalProperty()
{
var viewModel = new TestViewModel();
var bindSource = new BindContext(viewModel, "Name");
Assert.AreEqual(viewModel, bindSource.Source);
Assert.AreEqual("Name", bindSource.Property);
Assert.AreEqual(typeof(string), bindSource.PropertyType);
Assert.AreEqual(null, bindSource.Value);
viewModel.Name = Name;
Assert.AreEqual(Name, bindSource.Value);
Assert.AreEqual(viewModel, bindSource.OriginalSource);
viewModel = null;
GC.Collect();
Assert.AreEqual(null, bindSource.OriginalSource);
}
/// <summary>
/// Initializes a new instance of the <see cref="NotifyIndexPropertyObservation"/> class.
/// </summary>
/// <param name="data">
/// The data.
/// </param>
/// <param name="property">
/// The property.
/// </param>
/// <param name="childProperty">
/// The child property.
/// </param>
public NotifyIndexPropertyObservation(BindContext data, string property, string childProperty)
: base(data, property, childProperty)
{
}