public void ClearValueOnBoundProperty() { using(var button = new Button()) { button.SetValue(DataContextProvider.DataContextProperty, "test"); button.SetBinding(DataContextProvider.DataContextProperty, new Binding()); button.ClearValue(DataContextProvider.DataContextProperty); Assert.That(button.GetDataContext(), Is.Null); } }
public void ClearDataContextWhenThereIsNoInheritedValueFromParent() { using(var form = new Form()) { var button1 = new Button(); button1.SetDataContext("button3"); form.Controls.Add(button1); button1.ClearDataContext(); Assert.That(button1.GetDataContext(), Is.Null); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(form.HasLocalDataContext(), Is.False); } }
public void ChangeInheritedDataContext() { using(var form = new Form()) { var button1 = new Button(); var button2 = new Button(); form.Controls.Add(button1); form.Controls.Add(button2); form.SetDataContext("test"); Assert.That(button1.GetDataContext(), Is.EqualTo("test")); Assert.That(button1.HasLocalDataContext(), Is.False); form.SetDataContext("test2"); Assert.That(button1.GetDataContext(), Is.EqualTo("test2")); Assert.That(button1.HasLocalDataContext(), Is.False); button2.SetDataContext("button2"); form.ClearDataContext(); Assert.That(button1.GetDataContext(), Is.Null); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); form.SetDataContext("test"); Assert.That(button1.GetDataContext(), Is.EqualTo("test")); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); form.Controls.Remove(button1); Assert.That(button1.GetDataContext(), Is.Null); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); form.Controls.Remove(button2); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); } }
public void InheritDataContextFromParent() { using(var form = new Form()) { var button1 = new Button(); var button2 = new Button(); var button3 = new Button(); button3.SetDataContext("button3"); form.Controls.Add(button1); form.SetDataContext("test"); form.Controls.Add(button2); form.Controls.Add(button3); Assert.That(button1.GetDataContext(), Is.EqualTo("test")); Assert.That(button2.GetDataContext(), Is.EqualTo("test")); Assert.That(button3.GetDataContext(), Is.EqualTo("button3")); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(button2.HasLocalDataContext(), Is.False); Assert.That(button3.HasLocalDataContext(), Is.True); button1.SetDataContext("button1"); Assert.That(button1.GetDataContext(), Is.EqualTo("button1")); button2.SetDataContext(null); Assert.That(button2.GetDataContext(), Is.Null); Assert.That(button1.HasLocalDataContext(), Is.True); Assert.That(button2.HasLocalDataContext(), Is.True); button3.ClearDataContext(); Assert.That(button3.GetDataContext(), Is.EqualTo("test")); Assert.That(button3.HasLocalDataContext(), Is.False); } }
public void SetAndGetDataContextForControl() { using(var button1 = new Button()) { Assert.That(button1.GetDataContext(), Is.Null); Assert.That(button1.HasLocalDataContext(), Is.False); button1.SetDataContext("test"); Assert.That(button1.GetDataContext(), Is.EqualTo("test")); Assert.That(button1.HasLocalDataContext(), Is.True); button1.ClearDataContext(); Assert.That(button1.GetDataContext(), Is.Null); Assert.That(button1.HasLocalDataContext(), Is.False); } using(var button2 = new Button()) { Assert.That(button2.GetDataContext(), Is.Null); button2.SetDataContext(13); Assert.That(button2.GetDataContext(), Is.EqualTo(13)); } using(var button3 = new Button()) { button3.ClearDataContext(); Assert.That(button3.GetDataContext(), Is.Null); Assert.That(button3.HasLocalDataContext(), Is.False); } }
public void MultiLevelDataContextInheritance2() { using(var form = new Form()) { var panel = new Panel(); var button = new Button(); panel.Controls.Add(button); form.SetDataContext("test"); form.Controls.Add(panel); Assert.That(button.GetDataContext(), Is.EqualTo("test")); Assert.That(button.HasLocalDataContext(), Is.False); form.SetDataContext("test2"); Assert.That(button.GetDataContext(), Is.EqualTo("test2")); Assert.That(button.HasLocalDataContext(), Is.False); panel.SetDataContext("panel"); Assert.That(button.GetDataContext(), Is.EqualTo("panel")); Assert.That(button.HasLocalDataContext(), Is.False); } }
public void MultiLevelDataContextInheritance1() { using(var form = new Form()) { var panel = new Panel(); var button1 = new Button(); var button2 = new Button(); panel.Controls.Add(button1); panel.Controls.Add(button2); form.Controls.Add(panel); form.SetDataContext("test"); Assert.That(button1.GetDataContext(), Is.EqualTo("test")); Assert.That(button1.HasLocalDataContext(), Is.False); form.SetDataContext("test2"); Assert.That(button1.GetDataContext(), Is.EqualTo("test2")); Assert.That(button1.HasLocalDataContext(), Is.False); button2.SetDataContext("button2"); form.ClearDataContext(); Assert.That(button1.GetDataContext(), Is.Null); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); form.SetDataContext("test2"); Assert.That(button1.GetDataContext(), Is.EqualTo("test2")); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); Assert.That(button1.HasLocalDataContext(), Is.False); panel.SetDataContext("panel"); Assert.That(button1.GetDataContext(), Is.EqualTo("panel")); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); form.ClearDataContext(); Assert.That(panel.GetDataContext(), Is.EqualTo("panel")); Assert.That(panel.HasLocalDataContext(), Is.True); Assert.That(button1.GetDataContext(), Is.EqualTo("panel")); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); form.SetDataContext("test2"); Assert.That(panel.GetDataContext(), Is.EqualTo("panel")); Assert.That(panel.HasLocalDataContext(), Is.True); Assert.That(button1.GetDataContext(), Is.EqualTo("panel")); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); panel.ClearDataContext(); Assert.That(panel.GetDataContext(), Is.EqualTo("test2")); Assert.That(panel.HasLocalDataContext(), Is.False); Assert.That(button1.GetDataContext(), Is.EqualTo("test2")); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); form.Controls.Clear(); Assert.That(panel.GetDataContext(), Is.Null); Assert.That(panel.HasLocalDataContext(), Is.False); Assert.That(button1.GetDataContext(), Is.Null); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); panel.SetDataContext("panel"); Assert.That(button1.GetDataContext(), Is.EqualTo("panel")); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); panel.Controls.Clear(); Assert.That(button1.GetDataContext(), Is.Null); Assert.That(button1.HasLocalDataContext(), Is.False); Assert.That(button2.GetDataContext(), Is.EqualTo("button2")); Assert.That(button2.HasLocalDataContext(), Is.True); } }
public void SetClearValue() { using(var form = new Form()) { var button = new Button(); form.Controls.Add(button); var viewModel = new TestViewModel() { StringProperty = "test", StringProperty2 = "test2" }; form.SetDataContext(viewModel); BindingManager manager = new BindingManager(); manager.SetBinding(button, DataContextProvider.DataContextProperty, new Binding(() => viewModel.StringProperty)); manager.SetValue(button, DataContextProvider.DataContextProperty, "value"); Assert.That(button.GetDataContext(), Is.EqualTo("value")); Assert.That(manager.GetBindingActions().Count(), Is.EqualTo(0)); Assert.That(manager.GetValueActions().Count(), Is.EqualTo(1)); SetValueAction action = manager.GetValueActions().First(); Assert.That(action.Control, Is.EqualTo(button)); Assert.That(((AttachedPropertyDescriptor)action.Property).Property, Is.EqualTo(DataContextProvider.DataContextProperty)); Assert.That(action.Value, Is.EqualTo("value")); Assert.That(manager.FindAction(button, AttachedPropertyDescriptor.FromAttachedProperty(DataContextProvider.DataContextProperty)), Is.EqualTo(action)); manager.SetValue(button, DataContextProvider.DataContextProperty, "value2"); Assert.That(manager.GetBindingActions().Count(), Is.EqualTo(0)); Assert.That(manager.GetValueActions().Count(), Is.EqualTo(1)); Assert.That(button.GetDataContext(), Is.EqualTo("value2")); action = manager.GetValueActions().First(); Assert.That(action.Control, Is.EqualTo(button)); Assert.That(((AttachedPropertyDescriptor)action.Property).Property, Is.EqualTo(DataContextProvider.DataContextProperty)); Assert.That(action.Value, Is.EqualTo("value2")); manager.ClearValue(button, DataContextProvider.DataContextProperty); Assert.That(manager.GetBindingActions().Count(), Is.EqualTo(0)); Assert.That(manager.GetValueActions().Count(), Is.EqualTo(0)); Assert.That(button.GetDataContext(), Is.Null); } }