BrowsePathEdit.CustomPathIcon Event

Allows you to specify a custom path icon.

Namespace: DevExpress.Xpf.Editors

Assembly: DevExpress.Xpf.Core.v24.2.dll

NuGet Package: DevExpress.Wpf.Core

Declaration

C#

public event EventHandler<PathIconEventArgs> CustomPathIcon

VB.NET

Public Event CustomPathIcon As EventHandler(Of PathIconEventArgs)

Event Data

The CustomPathIcon event's data class is PathIconEventArgs. The following properties provide information specific to this event:

Property	Description
Handled	Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs.
Icon	Gets or sets the path icon.
OriginalSource	Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.
Path	Gets the path displayed in the BrowsePathEdit.
RoutedEvent	Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs.
Source	Gets or sets a reference to the object that raised the event. Inherited from RoutedEventArgs.

The event data class exposes the following methods:

Method	Description
InvokeEventHandler(Delegate, Object)	When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation. Inherited from RoutedEventArgs.
OnSetSource(Object)	When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes. Inherited from RoutedEventArgs.

Remarks

The following code sample changes the icon displayed if a user enters an invalid path:

XAML

<dxe:BrowsePathEdit DialogType="Folder" CustomPathIcon="OnCustomPathIcon">

C#

using DevExpress.Xpf.Editors;
using System.IO;
using System.Windows.Media.Imaging;
// ...

void OnCustomPathIcon(object sender, PathIconEventArgs e) {
    if (!Directory.Exists(e.Path))
        e.Icon = new BitmapImage(new System.Uri("pack://application:,,,/Warning_16x16.png"));
    e.Handled = true;
}

VB.NET

Imports DevExpress.Xpf.Editors
Imports System.IO
Imports System.Windows.Media.Imaging
' ...

Private Sub OnCustomPathIcon(ByVal sender As Object, ByVal e As PathIconEventArgs)
    If Not Directory.Exists(e.Path) Then e.Icon = New BitmapImage(New System.Uri("pack://application:,,,/Warning_16x16.png"))
    e.Handled = True
End Sub