public void BindingForPropertyPropertyNamedInAttachedProperyIsValidatedForValidValue()
{
var instance = new ValidatedObject();
var textBox = new TextBox();
textBox.BeginInit();
textBox.DataContext = instance;
var binding = new Binding("ValidatedStringProperty")
{
Mode = BindingMode.OneWayToSource,
UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged,
ValidatesOnExceptions = true
};
PresentationTraceSources.SetTraceLevel(binding, PresentationTraceLevel.High);
BindingOperations.SetBinding(textBox, TextBox.TextProperty, binding);
textBox.EndInit();
Validate.SetBindingForProperty(textBox, "Text");
Assert.IsFalse(SWC.Validation.GetHasError(textBox));
textBox.Text = "aaaaaaaa";
Assert.IsFalse(SWC.Validation.GetHasError(textBox));
}
public MainWindow()
{
InitializeComponent();
var file_name = Properties.Settings.Default.DataFilePath;
var data = Data.Enterprise.LoadFromFile(file_name);
DataContext = data;
PresentationTraceSources.SetTraceLevel(this, PresentationTraceLevel.High);
}
private void SetBinding()
{
var b = new Binding()
{
Path = new PropertyPath(TextBox.TextProperty /* <-- Source Property */),
Source = _source,
// Mode = BindingMode.TwoWay, <-- implicitly set by WPF
// UpdateSourceTrigger=UpdateSourceTrigger.LostFocus <-- implicitly set by WPF from TextProperty from Target
};
PresentationTraceSources.SetTraceLevel(b, PresentationTraceLevel.High);
_target.SetBinding(TextBox.TextProperty, b); /* <-- Target Property */
}
private void BindProcessesToListView()
{
ObjectDataProvider provider = new ObjectDataProvider();
provider.ObjectType = typeof(Process);
provider.MethodName = "GetProcesses";
Binding binding = new Binding();
binding.Source = provider;
binding.Mode = BindingMode.OneWay;
PresentationTraceSources.SetTraceLevel(binding,
PresentationTraceLevel.High);
listView1.SetBinding(ListView.ItemsSourceProperty, binding);
}
/// <summary>
/// See <see cref="AnalyzerBase.Analyze" />
/// </summary>
public override void Analyze(TreeItem treeItem, AnalyzerContext analyzerContext)
{
PresentationTraceSources.SetTraceLevel(treeItem.Instance, PresentationTraceLevel.High);
var dependencyObject = treeItem.Instance as DependencyObject;
if (dependencyObject == null)
{
return;
}
if (_pendingTreeItems.ContainsKey(treeItem))
{
return;
}
var backgroundHelper = new DataBindingBackgroundHelper(this, treeItem, analyzerContext, () => _pendingTreeItems.Remove(treeItem));
_pendingTreeItems.Add(treeItem, backgroundHelper);
foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(dependencyObject.GetType()))
{
var dpd = DependencyPropertyDescriptor.FromProperty(property);
if (dpd != null)
{
BindingExpressionBase binding = BindingOperations.GetBindingExpressionBase(dependencyObject, dpd.DependencyProperty);
if (binding != null)
{
if (binding.HasError || binding.Status != BindingStatus.Active)
{
var callback = backgroundHelper.CreateCallback();
// Ensure that no pending calls are in the dispatcher queue
Dispatcher.CurrentDispatcher.BeginInvoke(DispatcherPriority.SystemIdle, (Action) delegate
{
var stringBuilder = new StringBuilder();
var stringWriter = new StringWriter(stringBuilder);
var listener = new TextWriterTraceListener(stringWriter);
PresentationTraceSources.DataBindingSource.Listeners.Add(listener);
PresentationTraceSources.SetTraceLevel(treeItem.Instance, PresentationTraceLevel.High);
// Remove and add the binding to re-trigger the binding error
dependencyObject.ClearValue(dpd.DependencyProperty);
BindingOperations.SetBinding(dependencyObject, dpd.DependencyProperty, binding.ParentBindingBase);
listener.Flush();
stringWriter.Flush();
Dispatcher.CurrentDispatcher.BeginInvoke(DispatcherPriority.SystemIdle, (Action) delegate
{
string bindingError = stringBuilder.ToString();
if (bindingError.Length > 0)
{
int prefix = bindingError.IndexOf(':');
bindingError = bindingError.Substring(prefix + 6).Replace("\r", "").Replace("\n", "");
callback.Issue = new Issue("BindingError", string.Format("{0}: {1}", dpd.DisplayName, bindingError),
IssueSeverity.Error, IssueCategory.Functionality,
treeItem, dpd);
}
PresentationTraceSources.DataBindingSource.Listeners.Remove(listener);
listener.Close();
callback.SetDone();
});
});
}
}
}
}
backgroundHelper.ReportIssues();
}