https://sites.google.com/site/toriaezunomemo/home/visual-studiomemo/hittotesuto
Using the programs on the site above as a reference, the goal is to implement the hit test program in WPF of C# as follows:
Click
→Display how many figures there are in the clicked part
→ Display Rectangle, Elipse names (Green, Gray, etc.)
But I don't know what to do with the last name acquisition part.
With x.VisualHit.GetType().Name, Elipse and Rectangle can be displayed, but how can I get the corresponding name part?
c# wpf
I think the simplest way is to cast to FrameworkElement and look at the Name properties.
varfe=(FrameworkElement) x.VisualHit;
Console.WriteLine(fe.Name);
A more advanced method is to define your own attachment properties and set the required values.Enter propa on the Visual Studio C# editor and press Tab twice to generate the following code:Please rewrite the highlighted parts.
class Hoge
{
public static string GetPiyo (DependencyObject obj)
{
return(string) obj.GetValue(PiyoProperty);
}
public static void SetPiyo (DependencyObject obj, string value)
{
obj.SetValue (PiyoProperty, value);
}
// Using a DependencyProperty as the backing store for Piyo. This enable animation, styling, binding, etc...
public static readonly DependencyProperty PiyoProperty=
DependencyProperty.RegisterAttached("Piyo", typeof(string), typeof(Hoge), new PropertyMetadata(null));
}
After this definition, setting xmlns (local is added by default for Visual Studio 2015) on the XAML allows any string to be set in the property local:Hoge.Piyo, so you can call the Hoge.GetPiyo(fe) at runtime to get the value.
If the hit object is FrameworkElement, it has the Name property, so I think I should cast it and get it.
foreach (HitTestResult x in hitResultsList)
{
US>//#string name=";
FrameworkElement fe=x.VisualHit as FrameworkElement;
if(fe!=null)
name = fe.Name;
Console.WriteLine("{0}{1}", x.VisualHit.ToString(), name);
}
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