wpf一些例子

相关知识点：WPF - Adorner

WPF Diagram Designer

http://www.codeproject.com/Articles/484616/MVVM-Diagram-Designer

翻译好的

http://www.cnblogs.com/zhoujg/archive/2009/11/23/1608913.html

http://www.cnblogs.com/zhoujg/archive/2010/08/17/1801271.html

http://www.cnblogs.com/zhoujg/archive/2010/08/17/1801427.html

http://www.cnblogs.com/zhoujg/archive/2010/08/19/1801660.html

http://www.cnblogs.com/zhoujg/archive/2010/08/19/1801663.html

树状列表:

http://www.codeproject.com/Articles/30721/WPF-TreeListView-Control

Automatic Scrolling During Drag operation

http://www.codeproject.com/Articles/618014/Automatic-Scrolling-During-Drag-operation

MainWindow.xaml

using System.Windows;
using System.Windows.Input;

namespace AutoDragScrollingDemo
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        public void EnableDragDemo(object sender, MouseEventArgs e)
        {
            if (e.LeftButton == MouseButtonState.Pressed)
            {
                DragDrop.DoDragDrop(sender as DependencyObject, new object(), DragDropEffects.Move);
            }
        }
    }
}

MainWindow.xaml

MainWindow.xml.cs

using System.Windows;
using System.Windows.Input;

namespace AutoDragScrollingDemo
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        public void EnableDragDemo(object sender, MouseEventArgs e)
        {
            if (e.LeftButton == MouseButtonState.Pressed)
            {
                DragDrop.DoDragDrop(sender as DependencyObject, new object(), DragDropEffects.Move);
            }
        }
    }
}

MainWindow.xml.cs

AutoDragScrollingDemo.cs

/*
 *This work is being distributed under the The Code Project Open License (CPOL) (http://www.codeproject.com/info/cpol10.aspx) along with all restrictions placed therein.
 *Attribution:
 *1. Source Article: http://www.codeproject.com/Articles/618014/Automatic-Scrolling-During-Drag-operation
 *   Author: Amit Mittal (http://www.codeproject.com/Members/Amit_Mittal)
 */

using System.Diagnostics;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Media;

namespace AutoDragScrollingDemo
{
    public class AutoDragScrollingProvider
    {
        public static readonly DependencyProperty EnableAutomaticScrollingProperty =
            DependencyProperty.RegisterAttached("EnableAutomaticScrolling", typeof(bool), typeof(AutoDragScrollingProvider), new PropertyMetadata(default(bool), OnEnableAutomaticScrollingChange));

        public static bool GetEnableAutomaticScrolling(DependencyObject obj)
        {
            return (bool)obj.GetValue(EnableAutomaticScrollingProperty);
        }

        public static void SetEnableAutomaticScrolling(DependencyObject obj, bool value)
        {
            obj.SetValue(EnableAutomaticScrollingProperty, value);
        }

        public static readonly DependencyProperty UseLineScrollingForVerticalChange =
            DependencyProperty.RegisterAttached("UseLineScrollingForVerticalChange", typeof(bool), typeof(AutoDragScrollingProvider), new PropertyMetadata(default(bool)));

        public static bool GetUseLineScrollingForVerticalChange(DependencyObject obj)
        {
            return (bool)obj.GetValue(UseLineScrollingForVerticalChange);
        }

        public static void SetUseLineScrollingForVerticalChange(DependencyObject obj, bool value)
        {
            obj.SetValue(UseLineScrollingForVerticalChange, value);
        }

        public static readonly DependencyProperty UseLineScrollingForHorizontalChangeProperty =
            DependencyProperty.RegisterAttached("UseLineScrollingForHorizontalChange", typeof(bool), typeof(AutoDragScrollingProvider), new PropertyMetadata(default(bool)));

        public static bool GetUseLineScrollingForHorizontalChange(DependencyObject obj)
        {
            return (bool)obj.GetValue(UseLineScrollingForHorizontalChangeProperty);
        }

        public static void SetUseLineScrollingForHorizontalChange(DependencyObject obj, bool value)
        {
            obj.SetValue(UseLineScrollingForHorizontalChangeProperty, value);
        }

        private static readonly DependencyProperty _autoDragScrollingProviderProperty =
            DependencyProperty.RegisterAttached("_AutoDragScrollingProvider", typeof(AutoDragScrollingProvider), typeof(AutoDragScrollingProvider), new PropertyMetadata(default(AutoDragScrollingProvider)));

        private static void OnEnableAutomaticScrollingChange(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var uiElement = d as UIElement;
            if (uiElement != null)
            {
                if (true.Equals(e.NewValue))
                {
                    Debug.Assert(uiElement.GetValue(_autoDragScrollingProviderProperty) == null);
                    var scrollingManager = new AutoDragScrollingProvider();
                    uiElement.PreviewDragEnter += scrollingManager.HandlePreviewDragMove;
                    uiElement.PreviewDragOver += scrollingManager.HandlePreviewDragMove;
                    uiElement.SetValue(_autoDragScrollingProviderProperty, scrollingManager);
                }
                else
                {
                    var scrollingManager = uiElement.GetValue(_autoDragScrollingProviderProperty) as AutoDragScrollingProvider;
                    if (scrollingManager != null)
                    {
                        uiElement.PreviewDragEnter -= scrollingManager.HandlePreviewDragMove;
                        uiElement.PreviewDragOver -= scrollingManager.HandlePreviewDragMove;
                        uiElement.SetValue(_autoDragScrollingProviderProperty, null);
                    }
                }
            }
        }

        //this caching is to avid some redundant steps but may prove troublesome
        //if parent tree is dynamic which in most cases is not the case.
        private IScrollInfo _scrollInfo;
        private void HandlePreviewDragMove(object sender, DragEventArgs e)
        {
            if (_scrollInfo == null)
            {
                ScrollViewer parentScrollViewer = null;
                var parent = e.OriginalSource as DependencyObject;
                while (parent != null)
                {
                    parentScrollViewer = parent as ScrollViewer;
                    if (parentScrollViewer != null)
                    {
                        break;
                    }

                    parent = VisualTreeHelper.GetParent(parent);
                }

                if (parentScrollViewer != null)
                {
                    parent = e.OriginalSource as DependencyObject;
                    while (parent != null)
                    {
                        _scrollInfo = parent as IScrollInfo;
                        if (_scrollInfo != null && _scrollInfo.ScrollOwner == parentScrollViewer)
                        {
                            break;
                        }
                        _scrollInfo = null;
                        parent = VisualTreeHelper.GetParent(parent);
                    }
                }

                Panel scrollablePanel = _scrollInfo as Panel;
                if (scrollablePanel != null)
                {
                    Orientation? orientation = null;
                    //Special case handling as stack panel does not support 'smooth scrolling' or in other words fractional offset changes
                    if (scrollablePanel is StackPanel)
                    {
                        orientation = (Orientation)scrollablePanel.GetValue(StackPanel.OrientationProperty);
                    }
                    //VirtualizingStackPanel behaves like StackPanel only if it is not hosted in an ItemsControl
                    else if (scrollablePanel is VirtualizingStackPanel && !scrollablePanel.IsItemsHost)
                    {
                        orientation = (Orientation)scrollablePanel.GetValue(VirtualizingStackPanel.OrientationProperty);
                    }

                    if (orientation != null)
                    {
                        if (orientation == Orientation.Horizontal)
                        {
                            SetUseLineScrollingForHorizontalChange(scrollablePanel, true);
                        }
                        else
                        {
                            SetUseLineScrollingForVerticalChange(scrollablePanel, true);
                        }
                    }
                }
            }

            UIElement scrollable = _scrollInfo as UIElement;
            if (scrollable != null)
            {
                var mousePos = e.GetPosition(scrollable);

                if (_scrollInfo.CanHorizontallyScroll)
                {
                    var avgWidth = scrollable.RenderSize.Width / _scrollInfo.ViewportWidth; //translate to pixels
                    if (mousePos.X < )
                    {
                        if (GetUseLineScrollingForHorizontalChange(scrollable))
                        {
                            _scrollInfo.LineLeft();
                        }
                        else
                        {
                            var delta = (mousePos.X - ) / avgWidth; //translate back to original unit
                            _scrollInfo.SetHorizontalOffset(_scrollInfo.HorizontalOffset + delta);
                        }
                    }
                    else if (mousePos.X > (scrollable.RenderSize.Width - ))
                    {
                        if (GetUseLineScrollingForHorizontalChange(scrollable))
                        {
                            _scrollInfo.LineRight();
                        }
                        else
                        {
                            var delta = (mousePos.X +  - scrollable.RenderSize.Width) / avgWidth; //translate back to original unit
                            _scrollInfo.SetHorizontalOffset(_scrollInfo.HorizontalOffset + delta);
                        }
                    }
                }

                if (_scrollInfo.CanVerticallyScroll)
                {
                    var avgHeight = scrollable.RenderSize.Height / _scrollInfo.ViewportHeight; //translate to pixels
                    if (mousePos.Y < )
                    {
                        if (GetUseLineScrollingForVerticalChange(scrollable))
                        {
                            _scrollInfo.LineUp();
                        }
                        else
                        {
                            var delta = (mousePos.Y - ) / avgHeight; //translate back to original unit
                            _scrollInfo.SetVerticalOffset(_scrollInfo.VerticalOffset + delta);
                        }
                    }
                    else if (mousePos.Y > (scrollable.RenderSize.Height - ))
                    {
                        if (GetUseLineScrollingForVerticalChange(scrollable))
                        {
                            _scrollInfo.LineDown();
                        }
                        else
                        {
                            var delta = (mousePos.Y +  - scrollable.RenderSize.Height) / avgHeight; //translate back to original unit
                            _scrollInfo.SetVerticalOffset(_scrollInfo.VerticalOffset + delta);
                        }
                    }
                }
            }
        }
    }
}

AutoDragScrollingDemo.cs

另外一个scrollviewer内容拖拽，自动滚动的例子

http://www.codeproject.com/Tips/635510/WPF-Drag-Drop-Auto-scroll

学习资料

http://drwpf.com/blog/2008/03/25/itemscontrol-i-is-for-item-container/

http://drwpf.com/blog/2008/07/20/itemscontrol-g-is-for-generator/

http://drwpf.com/blog/category/itemscontrol/

http://stackoverflow.com/questions/2415580/when-using-itemscontrol-itemscontrol-itemspanel-is-set-to-canvas-contenpresente

http://drwpf.com/blog/category/itemscontrol/

http://www.cnblogs.com/Kation/archive/2013/05/02/xaml-contentproperty-collection.html

Copy ui into image

http://www.cnblogs.com/gnielee/archive/2010/12/17/copy-wpf-ui-to-clipboard.html

Drag And Drop

http://blogs.msdn.com/b/llobo/archive/2006/12/08/drag-drop-library.aspx

Copy Item in Canvas and paste to self or another Canvas

http://www.cnblogs.com/DebugLZQ/archive/2013/05/06/3062409.html.

http://www.codeproject.com/Tips/82990/XAML-Serialization

https://msdn.microsoft.com/zh-cn/library/system.windows.markup.xamlreader%28v=vs.110%29.aspx

Copy Paste Item in Canvas with Undo Redo

https://social.msdn.microsoft.com/Forums/vstudio/en-US/74c54b34-db73-43c1-8874-138a0cba94c1/copypaste-in-a-canvas?forum=wpf&prof=required

namespace CopyAndPasteInCanvas

{

    public partial class Window1 : Window

    {

        private Rectangle rect;

        private double top = ;

        private double left = ;

        private Stack<Shape> undoStack = new Stack<Shape>();

        private Stack<Shape> redoStack = new Stack<Shape>();

        public Window1()

        {

            InitializeComponent();

            CommandBinding pasteCmdBinding = new CommandBinding();

            pasteCmdBinding.Command = ApplicationCommands.Paste;

            pasteCmdBinding.Executed += pasteCmdBinding_Executed;

            pasteCmdBinding.CanExecute += pasteCmdBinding_CanExecute;

            this.CommandBindings.Add(pasteCmdBinding);

            CommandBinding copyCmdBinding = new CommandBinding();

            copyCmdBinding.Command = ApplicationCommands.Copy;

            copyCmdBinding.Executed += copyCmdBinding_Executed;

            copyCmdBinding.CanExecute += copyCmdBinding_CanExecute;

            this.CommandBindings.Add(copyCmdBinding);

            CommandBinding undoCmdBinding = new CommandBinding();

            undoCmdBinding.Command = ApplicationCommands.Undo;

            undoCmdBinding.CanExecute += undoCmdBinding_CanExecute;

            undoCmdBinding.Executed += undoCmdBinding_Executed;

            this.CommandBindings.Add(undoCmdBinding);

            CommandBinding redoCmdBinding = new CommandBinding();

            redoCmdBinding.Command = ApplicationCommands.Redo;

            redoCmdBinding.CanExecute += redoCmdBinding_CanExecute;

            redoCmdBinding.Executed += redoCmdBinding_Executed;

            this.CommandBindings.Add(redoCmdBinding);

            rect = new Rectangle();

            rect.Width = ;

            rect.Height = ;

            rect.Fill = Brushes.Red;

        }

        private void undoCmdBinding_Executed(object sender, ExecutedRoutedEventArgs e)

        {

            Shape shape = undoStack.Pop();

            RemoveShape(shape);

        }

        private void undoCmdBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e)

        {

            e.CanExecute = undoStack.Count > ;

        }

        private void redoCmdBinding_Executed(object sender, ExecutedRoutedEventArgs e)

        {

            Shape shape = redoStack.Pop();

            AddShape(shape);

        }

        private void redoCmdBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e)

        {

            e.CanExecute = redoStack.Count > ;

        }

        private void pasteCmdBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e)

        {

            e.CanExecute = Clipboard.ContainsText(TextDataFormat.Xaml);

        }

        private void copyCmdBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e)

        {

            e.CanExecute = true;

        }

        private void copyCmdBinding_Executed(object sender, ExecutedRoutedEventArgs e)

        {

            string xaml = XamlWriter.Save(rect);

            Clipboard.SetText(xaml, TextDataFormat.Xaml);

        }

        private void pasteCmdBinding_Executed(object sender, ExecutedRoutedEventArgs e)

        {

            string xaml = Clipboard.GetText(TextDataFormat.Xaml);

            if (xaml != null)

            {

                using (MemoryStream stream = new MemoryStream(xaml.Length))

                {

                    using (StreamWriter sw = new StreamWriter(stream))

                    {

                        sw.Write(xaml);

                        sw.Flush();

                        stream.Seek(, SeekOrigin.Begin);

                        Shape shape = XamlReader.Load(stream) as Shape;

                        AddShape(shape);

                    }

                }

            }

        }

        private void AddShape(Shape shape)

        {

            Canvas.SetLeft(shape, left);

            Canvas.SetTop(shape, top);

            top += ;

            left += ;

            drawingCanvas.Children.Add(shape);

            undoStack.Push(shape);

        }

        private void RemoveShape(Shape shape)

        {

            top -= ;

            left -= ;

            Canvas.SetLeft(shape, left);

            Canvas.SetTop(shape, top);

            drawingCanvas.Children.Remove(shape);

            redoStack.Push(shape);

        }

    }

}

Copy And Paste In Canvas for undo and redo operation

copy paste with out undo redo

<Window x:Class="CopyAndPasteInCanvas.Window1"

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

    Title="Window1" Height="400" Width="600">

  <Grid>

      <Canvas Name="drawingCanvas"/>

    </Grid>

</Window>

窗体

namespace CopyAndPasteInCanvas

{

    public partial class Window1 : Window

    {

        private Rectangle rect;

        private double top = ;

        private double left = ;

        public Window1()

        {

            InitializeComponent();

            CommandBinding pasteCmdBinding = new CommandBinding();

            pasteCmdBinding.Command = ApplicationCommands.Paste;

            pasteCmdBinding.Executed += pasteCmdBinding_Executed;

            pasteCmdBinding.CanExecute += pasteCmdBinding_CanExecute;

            this.CommandBindings.Add(pasteCmdBinding);

            CommandBinding copyCmdBinding = new CommandBinding();

            copyCmdBinding.Command = ApplicationCommands.Copy;

            copyCmdBinding.Executed += copyCmdBinding_Executed;

            copyCmdBinding.CanExecute += copyCmdBinding_CanExecute;

            this.CommandBindings.Add(copyCmdBinding);

            rect = new Rectangle();

            rect.Width = ;

            rect.Height = ;

            rect.Fill = Brushes.Red;

        }

        private void pasteCmdBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e)

        {

            e.CanExecute = Clipboard.ContainsText(TextDataFormat.Xaml);

        }

        private void copyCmdBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e)

        {

            e.CanExecute = true;

        }

        private void copyCmdBinding_Executed(object sender, ExecutedRoutedEventArgs e)

        {

            string xaml = XamlWriter.Save(rect);

            Clipboard.SetText(xaml, TextDataFormat.Xaml);

        }

        private void pasteCmdBinding_Executed(object sender, ExecutedRoutedEventArgs e)

        {

            string xaml = Clipboard.GetText(TextDataFormat.Xaml);

            if (xaml != null)

            {

                using (MemoryStream stream = new MemoryStream(xaml.Length))

                {

                    using (StreamWriter sw = new StreamWriter(stream))

                    {

                        sw.Write(xaml);

                        sw.Flush();

                        stream.Seek(, SeekOrigin.Begin);

                        Shape shape = XamlReader.Load(stream) as Shape;

                        Canvas.SetLeft(shape, left);

                        Canvas.SetTop(shape, top);

                        top += ;

                        left += ;

                        drawingCanvas.Children.Add(shape);

                    }

                }

            }

        }

    }

}

Code Behind

Automated Undo/Redo library based on C# Generics in .NET framework

http://www.codeproject.com/Articles/19550/Automated-Undo-Redo-library-Csharp-Generics-NET-C

收费控件

https://www.devexpress.com/Products/NET/Controls/WPF/Grid/

http://xceed.com/Index.aspx?Lang=EN-CA

免费UI设计工具

http://download.cnet.com/Indigo-Studio/3000-2247_4-75851417.html

ObservableCollection and CollectionChanged Event

http://stackoverflow.com/questions/3042179/observablecollection-and-collectionchanged-event

public class RangeObservableCollection<T> : ObservableCollection<T>
{
    private bool surpressEvents = false;

    public void AddRange(IEnumerable<T> items)
    {
        surpressEvents = true;
        foreach (var item in items)
        {
            base.Add(item);
        }
        this.surpressEvents = false;
        this.OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add, items.ToList()));

    }

    protected override void OnCollectionChanged(System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
    {
        if (!this.surpressEvents)
        {
            base.OnCollectionChanged(e);
        }
    }
}

private RangeObservableCollection<InventoryBTO> _inventoryRecords;
public RangeObservableCollection<InventoryBTO> InventoryRecords
{
    get { return _inventoryRecords; }
    set { _inventoryRecords = value; }
}

private InventoryBTO _selectedRecord;
public InventoryBTO SelectedRecord
{
    get { return _selectedRecord; }
    set
    {
        if (_selectedRecord != value)
        {
            _selectedRecord = value;
            OnPropertyChanged(new PropertyChangedEventArgs("SelectedRecord"));
        }
    }
}

public InventoryViewModel()
{
    if (_inventoryRecords == null)
    {
        InventoryRecords = new ObservableCollection<InventoryBTO>();
        this.InventoryRecords.CollectionChanged += new NotifyCollectionChangedEventHandler(InventoryRecords_CollectionChanged);
    }

    this.InventoryRecords.AddRange(InventoryListBTO.GetAllInventoryRecords());
}

void InventoryRecords_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
    //e.NewItems will be an IList of all the items that were added in the AddRange method...
} 

To determine whether the ScrollBar is clicked or not

https://social.msdn.microsoft.com/Forums/vstudio/en-US/9a73b1b0-ec76-4b2c-8da6-91c71e3c406f/wpf-mouse-click-event-on-scrollbar-issue?forum=wpf

<Grid>
        <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Hidden" Name="myScrollViewer"
                      PreviewMouseDown="myScrollViewer_PreviewMouseDown">

            <StackPanel Name="imgStackPnl" Orientation="Horizontal">
                <Image Source="1.jpg" Width="100" Margin="0,10"/>
                <Image Source="2.jpg" Width="100" Margin="0,10"/>
                <Image Source="3.jpg" Width="100"/>
            </StackPanel>

        </ScrollViewer>

    </Grid>

private void myScrollViewer_PreviewMouseDown(object sender, MouseButtonEventArgs e)
        {
            object original = e.OriginalSource;          

            if (!original.GetType().Equals(typeof(ScrollViewer)))
            {
                if (original.GetType().Equals(typeof(Image)))
                {
                    Console.WriteLine("image is clicked");
                }
                else if (FindVisualParent<ScrollBar>(original as DependencyObject) != null)
                {
                    Console.WriteLine("scroll bar is clicked");
                }

            }
        }

        private parentItem FindVisualParent<parentItem>(DependencyObject obj) where parentItem:DependencyObject
        {
            DependencyObject parent = VisualTreeHelper.GetParent(obj);
            while (parent!=null && !parent.GetType().Equals(typeof(parentItem)))
            {
                parent = VisualTreeHelper.GetParent(parent);
            }
            return parent as parentItem;
        }

二叉树的例子

http://visualstudiogallery.msdn.microsoft.com/60297607-5fd4-4da4-97e1-3715e90c1a23/

Interaction design 交互式设计

https://en.wikipedia.org/wiki/Interaction_design

用户体验

http://baike.baidu.com/subview/274884/5077647.htm

交互设计师

http://baike.baidu.com/view/2316574.htm

用户体验设计

http://baike.baidu.com/view/1365273.htm

交互设计

http://baike.baidu.com/view/426920.htm

Copy Paste Image Example

http://files.cnblogs.com/files/CodingArt/WpfApplication1.zip

https://social.msdn.microsoft.com/Forums/zh-CN/bc551bea-a944-4541-b510-f72305f91436/imagesource-to-bitmap?forum=wpf

WPF: MultiBinding and IMultiValueConverter

http://blog.csainty.com/2009/12/wpf-multibinding-and.html

public class DataClass
{
   public string FirstName { get; set; }

   public string Surname { get; set; }
}

public class NameMultiValueConverter : IMultiValueConverter
{
   public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture) {
       return String.Format("{0} {1}", values[], values[]);
   }
}

<Window xmlns:local="clr-namespace:BlogIMultiValueConverter">
    <Window.Resources>
        <local:NameMultiValueConverter x:Key="NameMultiValueConverter" />
    </Window.Resources>
    <Grid>
        <TextBox Text="{Binding Path=FirstName, UpdateSourceTrigger=PropertyChanged}" />
        <TextBox Text="{Binding Path=Surname, UpdateSourceTrigger=PropertyChanged}" />
        <TextBlock>
            <TextBlock.Text>
                <MultiBinding Converter="{StaticResource MultiValueConverter}">
                    <Binding Path="FirstName" />
                    <Binding Path="Surname" />
                </MultiBinding>
            </TextBlock.Text>
        </TextBlock>
    </Grid>
</Window>

Combobox 下拉框 是 datagrid

http://www.nullskull.com/a/1428/wpf-datagrid-as-combobox-dropdown-part-2.aspx

http://www.codeproject.com/Articles/43074/WPF-Custom-ComboBox

http://waf.codeplex.com/

WPF Community Projects

Material Design in XAML Toolkit

DataGrid

下面代码中，按下tab键后，焦点从txt1，直接跳转到txt2：

<Windows.Resources>
    <Style x:Key="cellstyle" TargetType="{x:Type DataGridCell}"  BasedOn="{StaticResource MetroDataGridCell}">
        <Setter Property="KeyboardNavigation.IsTabStop" Value="False"/>
    </Style>
</Windows.Resources>

<DataGrid CellStyle="{StaticResource cellstyle}">
    <DataGrid.Columns>
        <DataGridTemplateColumn>　　
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <TextBox  x:Name="txt1"/>
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>
        <DataGridTemplateColumn>　　
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <TextBox  x:Name="txt1"/>
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>
    </DataGrid.Columns>
</DataGrid>

https://social.msdn.microsoft.com/Forums/en-US/5f17c332-673c-43ed-a818-67bd9429400d/wpf-datagrid-datagridtemplatecolumn-tab-focus-issue?forum=wpf

To be continued...