/// <summary>
/// Returns the data context of the specified <paramref name="obj"/>.
/// </summary>
/// <param name="obj">The target object to search the data context.</param>
/// <param name="dataContext">The data context on object <paramref name="obj"/> or
/// <c>null</c>, if no data context is present on the object.</param>
/// <returns><c>true</c>, if a data context was found. In this case, the returned
/// <paramref name="dataContext"/> is not-null. <c>false</c> else.</returns>
/// <remarks>
/// This method attaches change handlers to all relevant properties on the searched path.
/// </remarks>
protected bool GetDataContext(object obj, out BindingExtension dataContext)
{
DependencyObject current = obj as DependencyObject;
if (current == null)
{
dataContext = null;
return(false);
}
AbstractProperty dataContextProperty = current.DataContextProperty;
AttachToSourcePathProperty(dataContextProperty);
dataContext = dataContextProperty.GetValue() as BindingExtension;
return(dataContext != null);
}
public override void DeepCopy(IDeepCopyable source, ICopyManager copyManager)
{
Detach();
base.DeepCopy(source, copyManager);
BindingExtension bme = (BindingExtension)source;
Source = copyManager.GetCopy(bme.Source);
ElementName = bme.ElementName;
RelativeSource = bme.RelativeSource;
CheckTypeOfSource();
Path = bme.Path;
Mode = bme.Mode;
UpdateSourceTrigger = bme.UpdateSourceTrigger;
Converter = copyManager.GetCopy(bme.Converter);
ConverterParameter = copyManager.GetCopy(bme.ConverterParameter);
_compiledPath = bme._compiledPath;
Attach();
}
protected CommandBaseMarkupExtension()
{
_source = new BindingExtension(this);
}
protected CommandBaseMarkupExtension()
{
_source = new BindingExtension(this);
}
/// <summary>
/// Returns the data context of the specified <paramref name="obj"/>.
/// </summary>
/// <param name="obj">The target object to search the data context.</param>
/// <param name="dataContext">The data context on object <paramref name="obj"/> or
/// <c>null</c>, if no data context is present on the object.</param>
/// <returns><c>true</c>, if a data context was found. In this case, the returned
/// <paramref name="dataContext"/> is not-null. <c>false</c> else.</returns>
/// <remarks>
/// This method attaches change handlers to all relevant properties on the searched path.
/// </remarks>
protected bool GetDataContext(object obj, out BindingExtension dataContext)
{
DependencyObject current = obj as DependencyObject;
if (current == null)
{
dataContext = null;
return false;
}
AbstractProperty dataContextProperty = current.DataContextProperty;
AttachToSourcePathProperty(dataContextProperty);
dataContext = dataContextProperty.GetValue() as BindingExtension;
return dataContext != null;
}
