ExtensionMethod.NET Home of 820 C#, Visual Basic, F# and Javascript extension methods

WPF Controls Lists

Using extensions to provide a similar "Winforms.Controls" collection functionality. When implementing generics with System.Windows.Window extensions the VS2013 compiler starts throwing random exceptions, so following is using a static wrapper and each control type has to separated. On tested using VS2013..

Source

public static class WPFWindowExtensions
{

    public static string NameSpace(this Window window)
    {
       Type myType = window.GetType();
       return myType.Namespace;
    }

    public static List<Button> ToListButtonControls(this Window window)
    {
        return WindowControls.GetCollection<Button>(window);
    }

    public static List<Label> ToListLabelControls(this Window window)
    {
        return WindowControls.GetCollection<Label>(window);
    }

    public static List<TextBox> ToListTextBoxControls(this Window window)
    {
        return WindowControls.GetCollection<TextBox>(window);
    }

    public static List<Grid> ToListGridControls(this Window window)
    {
        return WindowControls.GetCollection<Grid>(window);
    }

    public static List<StackPanel> ToListStackPanelControls(this Window window)
    {
        return WindowControls.GetCollection<StackPanel>(window);
    }

}

public static class WindowControls
{
    public static List<T> GetCollection<T>(object parent) where T : DependencyObject
    {
        List<T> logicalCollection = new List<T>();
        GetLogicalChildCollection(parent as DependencyObject, logicalCollection);
        return logicalCollection;
    }
    private static void GetLogicalChildCollection<T>(DependencyObject parent, List<T> logicalCollection) where T : DependencyObject
    {
        IEnumerable children = LogicalTreeHelper.GetChildren(parent);
        foreach (object child in children)
        {
            if (child is DependencyObject)
            {
                DependencyObject depChild = child as DependencyObject;
                if (child is T)
                {
                    logicalCollection.Add(child as T);
                }
                GetLogicalChildCollection(depChild, logicalCollection);
            }
        }
    }
}

Example

List<System.Windows.Controls.TextBox> textboxes = this.ToListTextBoxControls();

this.ToListButtonControls()
this.ToListGridControls
this.ToListLabelControls
this.ToListTextBoxControls
this.ToListStackPanelControls

Author: Tom Kelly

Submitted on: 26 jun 2014

Language: C#

Type: WPF Controls

Views: 3034