WPF中動态加載XAML中的控件

原文:

WPF中動态加載XAML中的控件

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

using System.IO;

using System.Xml;

using System.Windows.Markup;

/*

 * 功能：測試WPF中動态加載XAML中的控件

 *       并加到指定的子節點中。

 * 作者：Kagula

 * 時間：2012-09-20

 * 環境：VS2008 .NET FRAMEWORK 3.5 

 * 參考資料：[1]《Application=Code+Markup 讀書筆記 19》

 *               http://space.itpub.net/15123181/viewspace-423015

 *           [2]《Pack URIs in Windows Presentation Foundation》

 *               http://technet.microsoft.com/en-US/library/aa970069(v=vs.90)

 */

namespace testXAMLLoad

{

    /// <summary>

    /// Interaction logic for Window1.xaml

    /// </summary>

    public partial class Window1 : Window

    {

        public Window1()

        {

            InitializeComponent();

            //LoadEmbeddedXaml();

            //LoadEmbeddedXaml2();

            LoadEmbeddedXaml3();

        }

        //從字元串中加載

        public void LoadEmbeddedXaml() 

        { 

            Title = "Load Embedded Xaml";

            string strXaml = "<Button xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'" + 

                " Foreground='LightSeaGreen' FontSize='16pt' Width='128' Height='32'>" + 

                " From String Object!</Button>"; 

            StringReader strreader = new  StringReader(strXaml); 

            XmlTextReader xmlreader = new  XmlTextReader(strreader);

            object obj = XamlReader.Load(xmlreader);

            grid1.Children.Add((UIElement)obj);

        //從外部檔案中加載 Button控件

        public void LoadEmbeddedXaml2()

            XmlTextReader xmlreader = new XmlTextReader("d:\\a.xaml");

            UIElement obj = XamlReader.Load(xmlreader) as UIElement;

        //從資源檔案中加載

        public void LoadEmbeddedXaml3()

            //Build Action = Resource,Do not Copy,無相應cs檔案

            Uri uri = new Uri("/LoadXamlResource.xaml",UriKind.Relative);

            Stream stream =Application.GetResourceStream(uri).Stream;

            //FrameworkElement繼承自UIElement

            FrameworkElement obj =XamlReader.Load(stream) as FrameworkElement;

            grid1.Children.Add(obj);

    } 

}

<Button xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'    Foreground='LightSeaGreen' 

    FontSize='16pt' 

    Width='128' 

    Height='32'>

    From File Object!

</Button>