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POChange a window style at runtime worked on VS2008, doesn't work on VS2010
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  1. POChange a window style at runtime worked on VS2008, doesn't work on VS2010
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    copied!<p>Something that was working on VS2008 (framework 3.5) seems to not work on VS2010 (framework 4).</p> <p>I need to change the style of a window at runtime (user preference). In VS2008 this code was working:</p> <p>Window1.xaml</p> <pre><code>&lt;Window x:Class="StyleTest.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" ResizeMode="CanResizeWithGrip"&gt; &lt;Window.Style&gt; &lt;Style TargetType="{x:Type Window}"&gt; &lt;Setter Property="MinWidth" Value="400" /&gt; &lt;Setter Property="Width" Value="500" /&gt; &lt;Setter Property="MinHeight" Value="400" /&gt; &lt;Setter Property="SizeToContent" Value="Height" /&gt; &lt;/Style&gt; &lt;/Window.Style&gt; &lt;Grid&gt; &lt;/Grid&gt; &lt;/Window&gt; </code></pre> <p>Window1.cs</p> <pre><code>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.Xml; using System.Windows.Markup; using System.IO; namespace StyleTest { /// &lt;summary&gt; /// Interaction logic for Window1.xaml /// &lt;/summary&gt; public partial class Window1 : Window { public Window1() { InitializeComponent(); Loaded += new RoutedEventHandler(ObjDialog_Loaded); } void ObjDialog_Loaded(object sender, RoutedEventArgs e) { XmlDocumentFragment frag = new XmlDocument().CreateDocumentFragment(); frag.InnerXml = "&lt;Style TargetType=\"{x:Type Window}\" xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\"&gt; " + " &lt;Setter Property=\"Height\" Value=\"200\" /&gt;" + " &lt;Setter Property=\"Width\" Value=\"200\" /&gt;" + "&lt;/Style&gt;"; XmlNode node = frag.FirstChild as XmlElement; Style style = LoadXaml(node.OuterXml) as Style; if (style != null) Style = style; UpdateLayout(); } private object LoadXaml(string xaml) { Exception ex = null; object o = LoadXaml(xaml, out ex); if (ex != null) throw ex; return o; } public static object LoadXaml(string xaml, out Exception exception) { try { ParserContext pc = new ParserContext(); pc.XmlnsDictionary.Add("", "http://schemas.microsoft.com/winfx/2006/xaml/presentation"); pc.XmlnsDictionary.Add("x", "http://schemas.microsoft.com/winfx/2006/xaml"); pc.XmlnsDictionary.Add("l", "http://www.teradp.com/schemas/GN4/1/WinUI"); pc.XmlnsDictionary.Add("c", "clr-namespace:TeraDP.GN4.Common;assembly=Common"); exception = null; return XamlReader.Load(new MemoryStream(Encoding.UTF8.GetBytes(xaml)), pc); } catch (Exception ex) { exception = ex; } return null; } } } </code></pre> <p>When I run this code on Framework 3.5 the window is displayed with a size of 200x200. When I run this code on Framework 4 thw window is displayed with a size of 500x400</p> <p>The strangest thing is that if I add MinWidth and MinHeight to the style applied at runtime those attributes works correctly also in VS2010, while Width and Height seems to be ignored.</p> <p>Do someone has a solution for this problem?</p>
 

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