Display Absolute Path in OpenFileDialog Box in C1FilePicker

In a recent query from one of the users of C1FilePicker for WPF, I provided an implementation where customer was looking to display the complete path of the selected file in C1FilePicker. By default when OpenFileDialog box opens it shows only the name of the selected file.

This example provides customization of the C1FilePicker class which can be implemented for other WPF controls in a similar manner. In this implementation, we inherit the C1FilePicker class and handle the 'Browse' button. On the Mouse Down event for Browse button, suppress the default OpenFileDialog box and show a new dialog box with customized string. Following code block shows the implementation. C# Code:

public class MyC1FilePicker : C1.WPF.C1FilePicker  
{  
    public override void OnApplyTemplate()  
    {  
        base.OnApplyTemplate();  

        var btn = GetTemplateChild("Browse") as Button;  
        btn.PreviewMouseDown += new MouseButtonEventHandler(btn_PreviewMouseDown);  
    }  

    void btn_PreviewMouseDown(object sender, MouseButtonEventArgs e)  
    {  
         e.Handled = true;  
         OpenFileDialog opd = new OpenFileDialog();  
         opd.Filter = this.Filter;  
         opd.FileName = this.SelectedFile.ToString();  
         opd.InitialDirectory = this.SelectedFile.DirectoryName;  
         if (opd.ShowDialog() == true)  
            this.SelectedFile = new System.IO.FileInfo(opd.FileName);  
     }  
}  

XAML Code:

xmlns:local="clr-namespace:WPF\_FilePicker\_CustomOpenFile"  

<local:MyC1FilePicker x:Name="c1FilePicker1" Width="125" Height="25" Filter="Image Files(*.PNG;*.JPG;*.GIF)|*.PNG;*.JPG;*.GIF|All files (*.*)|*.*"/>