If we add settings file in WPF application and add one bool value and check App.config file, then we can see that it is stored as string value.

Samples can have them, just want to make a pass and see if any make Microsoft of the sample look incomplete or not well-written using good patterns and practices.

Samples can have them, just want to make a pass and see if any make Microsoft of the sample look incomplete or not well-written using good patterns and practices.

I propose to split up EditBox.cs into two halves, first of which works without GridView View requirement as the following. Second half would inherit the first.

Sorry, new to GitHub, not sure how this works.

using System.Windows.Controls;

using System.Windows.Input;

using System.Windows;

using System.Windows.Documents;

namespace EditBoxControlLibrary

{

public class EditBoxBase : TextBlock

{

    #region Static Constructor



    static EditBoxBase()

    {

        DefaultStyleKeyProperty.OverrideMetadata(typeof(EditBoxBase), new FrameworkPropertyMetadata(typeof(EditBoxBase)));

    }



    #endregion





    #region Public Methods





    public EditBoxBase()

    {

        this.Loaded += EditBoxBase_Loaded;



        _textBox = new TextBox();



        _textBox.KeyDown += new KeyEventHandler(OnTextBoxKeyDown);

        _textBox.LostKeyboardFocus += new KeyboardFocusChangedEventHandler(OnTextBoxLostKeyboardFocus);

    }

   

    bool bLoadedFinished = false;//Not sure why EditBoxBase_Loaded fires twice ... 20190711

    private void EditBoxBase_Loaded(object sender, RoutedEventArgs e)

    {

        if (bLoadedFinished) return;

        bLoadedFinished = true;

        TextBlock textBlock = this as TextBlock;



        this.MouseEnter += EditBoxBase_MouseEnter;

        this.MouseLeave += EditBoxBase_MouseLeave;

        this.MouseUp += EditBoxBase_MouseUp;



        _adorner = new EditBoxBaseAdorner(textBlock, _textBox);

        AdornerLayer layer = AdornerLayer.GetAdornerLayer(textBlock); // fails on getting adorner if this is in constructor

        layer.Add(_adorner);

    }



    #endregion



    #region Protected Methods



    protected void EditBoxBase_MouseEnter(object sender, MouseEventArgs e)

    {

        if (!IsEditing)

        {

            _canBeEdit = true;

        }

    }



    protected void EditBoxBase_MouseLeave(object sender, MouseEventArgs e)

    {

        _isMouseWithinScope = false;

        _canBeEdit = false;

    }





    protected void EditBoxBase_MouseUp(object sender, MouseButtonEventArgs e)

    {

        if (e.ChangedButton == MouseButton.Right || e.ChangedButton == MouseButton.Middle)

            return;



        if (!IsEditing)

        {

            if (!e.Handled && (_canBeEdit || _isMouseWithinScope))

            {

                IsEditing = true;

            }

        }

    }



    #endregion



    #region Public Properties





    #region IsEditing





    public static DependencyProperty IsEditingProperty =

            DependencyProperty.Register(

                    "IsEditing",

                    typeof(bool),

                    typeof(EditBoxBase),

                    new FrameworkPropertyMetadata(false));





    public bool IsEditing

    {

        get { return (bool)GetValue(IsEditingProperty); }

        private set

        {

            SetValue(IsEditingProperty, value);

            _adorner.UpdateVisibilty(value);

       }

    }



    #endregion





    #endregion



    #region Private Methods





    private void OnTextBoxKeyDown(object sender, KeyEventArgs e)

    {

        if (IsEditing && (e.Key == Key.Enter || e.Key == Key.F2))

        {

            IsEditing = false;

            _canBeEdit = false;

        }

    }



    private void OnTextBoxLostKeyboardFocus(object sender, KeyboardFocusChangedEventArgs e)

    {

        IsEditing = false;

    }





    #endregion



    #region private variable



    private EditBoxAdorner _adorner;

    private FrameworkElement _textBox;

    private bool _canBeEdit = false;

    private bool _isMouseWithinScope = false;



    #endregion

}

}

Line 20 of MainWindow.cs should be

 _listingDataView = (CollectionViewSource) (Resources["ListingDataView"]);

Currently, the resource name is "listingDataView" which gives an error when checking "Show only bargains"

Hello,

The recent DPI support in WPF (starting with .Net 4.6.2) is really nice. It helped us improve a lot our application.

However when moving a window from a monitor to another with a different DPI, the rendering is broken when the system advanced option show window contents while dragging is disabled. This issue can be reproduced with the PerMonitorDPI samples of this repository.

Here are captures of what is happening:

moving from a monitor with 100% scale to another monitor with 150% scale

moving from a monitor with 150% scale to another monitor with 100% scale

Also note that this issue still happen in some cases even if the option show window contents while dragging is enabled. When using Win+Arrows keyboard shortcut to move the window to another monitor.

I tried to workaround it by forcing WPF to recalculate the layout or even with p/invoke some native Win32 API but it doesn't fix this.

While the WPF app will run, the dll is platform-specific. Helps remove warnings, and in real-life, one would build a version for a given architecture, or just use x86 everywhere.

This Example does not work if you have a High DPI Display (like a MacBookPro)! The wrong circles change the color!

This is probably the wrong place to report this issue and I apologize in advance, but I cannot find a better place.

The problem is, all code examples for WPF for .net 4.5 in MSDN have disappeared! E.g. compare this to the previous version. Some topics are completely missing now, although they existed before.

Where do I report this?

the path is "Animation/AnimationExamples/App.xaml".

the code is below :
<MeshGeometry3D x:Key="CubeSide06" TriangleIndices="0,1,2 3,4,5 6,7,8 9,10,11 " Normals="-1,0,0 -1,0,0 -1,0,0 -1,0,0 -1,0,0 -1,0,0 " TextureCoordinates="1,0 1,1 0,1 0,1 0,0 1,0 " Positions="-0.5,-0.5,0.5 -0.5,-0.5,-0.5 0.5,-0.5,-0.5 0.5,-0.5,-0.5 0.5,-0.5,0.5 -0.5,-0.5,0.5" />
from my view the element count in Postions is 6 but in TriangleIndices there is 11 , isn`t it wrong?

How to use gif as SplashScreen?

Sometimes the HtmlFromXamlConverter misses whitespace because it is not in a <Run> or similar tag. I hacked a fix by inserting the following code at line 46 of HtmlFromXamlConverter.cs:

            string regex = @"\>[ ]{1,}\<(?!\/)";
            Match m = Regex.Match(xamlString, regex);
            while (m != null && m.Success)
            {
                xamlString =
                      xamlString.Substring(0, m.Index + 1)
                    + "<Run xml:space='preserve'>" + new String(' ', m.Length - 2) + "</Run>"
                    + xamlString.Substring(m.Index + m.Length - 1, xamlString.Length - (m.Index + m.Length - 1));
                m = Regex.Match(xamlString, regex);
            }

I was not sure where to ask this, so I ask it here.

Is it possible to open source Microsoft Mathematics app which is a free WPF application? (it seems an abandoned project since the latest update was 7 years ago)

It can also be a good WPF sample app.

The LocBaml tool is now available in the Wpf-Samples repo: https://github.com/Microsoft/WPF-Samples/tree/master/Tools/LocBaml. The current version of the source matches the .NET Framework version, with additional code sanitziation, header updates, and a new SDK-style project file. The tool still needs to be ported to .NET core, and the project file sould be updated to target both netcoreapp3.0 and net472.

During one of the various ports and merges, the Activation and Deactivation sample in Application management did not make it over. We need to fix it.

follow this path WPF-Samples/Data Binding/MasterDetailXml/MainWindow.xaml,
In the third tag "StackPanel", the "Label" should set its DataContext to "{Binding ElementName=divisionsListBox, Path=SelectedItem}", otherwise the label text will be set incorrectly.

Please notice that.

Dear Devs,
it is kind of a pain to iterate through the whole page xaml for finding certain items.
The default methods .Content and .Children differ on the tree which is annoying (for beginners).
Could you improve the default method like using default examples for VisualTreeHelper?

Further it is annoying being forced to cast the method
(having not the same container providing .Children method) for the IntelliCode support.

Using multiple or deep Pages could be written recursively or iteratively much faster when the type is fixed providing and the same method could be used.

This
https://stackoverflow.com/questions/636383/how-can-i-find-wpf-controls-by-name-or-type/1759923#1759923
and this
https://codereview.stackexchange.com/questions/44760/is-there-a-better-way-to-get-a-child
relates to that.

The code for scaling fonts in a WinForms user control makes the overall size way bigger than the scaling factor. Enter a factor of 1.25, you might get 1.66 as the actual size.

Control.Scale sets the size of the child controls correctly, as per the scaling factor. However the fonts are still their original (small) size. Scaling the fonts doesn't give a correct overall ratio, and can mess up layout controls.

What's the correct way to get scaled fonts and controls to match the scalingFactor?

The project VisualsHitTesting in folder VisualLayer is a WinForm application!

This should be replaced with a WPF application.

For example, CustomRoutedCommand.csproj from https://github.com/Microsoft/WPF-Samples/tree/master/Input%20and%20Commands/CustomRoutedCommand.

Is this intentional?

for example, HostingWpfUserControlInWf and WPFUserControlHost should be in a common subdir HostingWpfUserControl

Use msbuild LocBaml.csproj yield an error The SDK 'Microsoft.NET.Sdk.WindowsDesktop' specified could not be found.
Downloading and installing .Net core 3.0 preview and manully create a global.json to specify the version solved this issue.
But then I ran into another one:

C:\Program Files\dotnet\sdk\3.0.100-preview6-012264\Sdks\Microsoft.NET.Sdk\targets\Microsoft.PackageDependencyResolution.targets(234,5): error NETSDK1004: Assets file 'C:\Use
rs\username\Downloads\LocBaml\obj\project.assets.json' not found. Run a NuGet package restore to generate this file. [C:\Users\gaojunxiao\Downloads\LocBaml\LocBaml.csproj]

Tried create a solution from existing project and then tried to run nuget restore, it says "nothing to do".
Anyone can help me out please?

need to determine how to retarget win32clock to use 4.5.2 and not 4.0.

For all I know setting the units on a CSS font-size attribute is mandatory. I updated line 162 to the following in order to make it specify the font-size in points:

css = "font-size:" 
    + Math.Round(double.Parse(xamlReader.Value, CultureInfo.InvariantCulture) / (96.0 / 72.0), 2)
      .ToString("0.##", CultureInfo.InvariantCulture) + "pt;";

This only works for when the FontSize in the XAML is specified in points and without units (as it's generated by XamlWriter.Save).

I had an issue where the HtmlFromXamlConverter.cs didn't support simple line breaks, which I fixed by inserting the following at line 451:

                    case "LineBreak":
                        htmlElementName = "BR";
                        break;

Should it be StackPanel instead of DockPanel?
Point to this sentence ->
"This sample shows how to use a DockPanel element to arrange three Button in a vertical stack."

WPF splash screen images are not scaled according to the DPI.

Due to new SDK changes, when UseWpf is not set to true, Microsoft.NET.Sdk.WindowsDesktop should show a (suppressible) error. Due to this, all sample projects are currently not building.

We need to add a property <UseWPF>true</UseWPF> in all netcore.csproj files. We also need to remove some extraneous property values in our project files.

MainWindow.xaml design window displays NullRreferenceException after this line added:
<local:TaskListDataTemplatedSelector x:Key="MyDataTemplateSelector"/>

It throws me a System.IndexOutOfRangeException at line 493.

   bij System.Xml.XmlTextWriter.WriteEndStartTag(Boolean empty)
   bij System.Xml.XmlTextWriter.AutoComplete(Token token)
   bij System.Xml.XmlTextWriter.WriteStartElement(String prefix, String localName, String ns)
   bij System.Xml.XmlWriter.WriteStartElement(String localName)
   bij MarkupConverter.HtmlFromXamlConverter.WriteElement(XmlTextReader xamlReader, XmlTextWriter htmlWriter, StringBuilder inlineStyle) in C:\Users\Laïla\Downloads\Converting between RTF and HTML\C#\MarkupConverter\HtmlFromXamlConverter.cs:regel 530
   bij MarkupConverter.HtmlFromXamlConverter.WriteElementContent(XmlTextReader xamlReader, XmlTextWriter htmlWriter, StringBuilder inlineStyle) in C:\Users\Laïla\Downloads\Converting between RTF and HTML\C#\MarkupConverter\HtmlFromXamlConverter.cs:regel 379
   bij MarkupConverter.HtmlFromXamlConverter.WriteFlowDocument(XmlTextReader xamlReader, XmlTextWriter htmlWriter, Boolean asFullDocument) in C:\Users\Laïla\Downloads\Converting between RTF and HTML\C#\MarkupConverter\HtmlFromXamlConverter.cs:regel 120
   bij MarkupConverter.HtmlFromXamlConverter.ConvertXamlToHtml(String xamlString, Boolean asFullDocument) in C:\Users\Laïla\Downloads\Converting between RTF and HTML\C#\MarkupConverter\HtmlFromXamlConverter.cs:regel 67
   bij FormatBarForRichTextBox.MainWindow.Button_Click_6(Object sender, RoutedEventArgs e) in C:\Users\Laïla\Downloads\FormatBarForRichTextBox\FormatBarForRichTextBox\FormatBarForRichTextBox\MainWindow.xaml.cs:regel 277

Contrary to the original implementation of HtmlLexicalAnalyzer.cs, I believe whitespaces after opening tags ARE significant. Furthermore IE, Edge and Chrome seem to agree. I changed line 100 to:

_ignoreNextWhitespace = false; // Whitespaces after opening tags ARE significant

Hello.
We have foud WPF samples project and found more than 200 issues. The main part is described in this article. http://www.viva64.com/en/b/0407/

.NET 4.8 made a bunch of improvements wrt per-monitor DPI, and can now support mixed-mode DPI (system-aware child-windows in per-monitor aware top-level windows). These improvements are also inherited by .NET Core.

Improve the guide at https://github.com/Microsoft/WPF-Samples/blob/master/PerMonitorDPI/readme.md, and also write a better sample to go with it.

When I attempt to build all the projects I get the following error message:

1>D:\Dev\WPF-Samples-master\Migration and Interoperability\HostingWpfUserControlInWf\App.config : error MSB3249: Application Configuration file "App.config" is invalid. Could not find file 'D:\Dev\WPF-Samples-master\Migration and Interoperability\HostingWpfUserControlInWf\App.config'.

I checked the source tree and there is no App.config in the HostingWpfUserControlInWf project files.

#66 removed TargetFrameworks . Project files should keep netcoreapp3.0 in the TargetFramework property.

Having the TargetFramework property in Directory.Build.props makes the projects not valid to open without the main solution. This is a problem since the repo has 200+ projects and waiting to load/build all to see a small project is defeating the purpose of this samples

Line 268 of HtmlFromXamlConverter.cs should be updated like this to support other cultures:

if (double.TryParse(values[i], NumberStyles.Any, CultureInfo.InvariantCulture, out value))

Multitargeted WPF samples: .NET Framework 4.72 and .NET core 3.0

https://github.com/ryalanms/WPF-Samples