C# 翻译DataGrid MouseeEvent，使我的视图中没有代码'；s代码隐藏
我有一个工作代码，其中一个C# 翻译DataGrid MouseeEvent，使我的视图中没有代码'；s代码隐藏,c#,wpf,xaml,mvvm,datagrid,C#,Wpf,Xaml,Mvvm,Datagrid,我有一个工作代码，其中一个Datagrid作为主控件。 我使用了Datagrid，因为它很容易将数据绑定到其中 我的代码需要将单元格移动到其他列中，因此我总是需要在单击鼠标以及释放鼠标时检查我在哪个单元格上 我当前的实现工作正常。 但是，我检查行和单元格的方法是通过视图的代码隐藏。 我的项目负责人正在寻找一种替代方法，通过绑定来完成这项工作，因为他希望视图的代码尽可能干净。 我已经尝试了所有我能做的，但是我找不到可以同时提供cells列和行索引的属性 请参阅下面的代码。（省略了一些列，因为它会超
Datagrid<UserControl x:Class="Widget5.View.WorkItemsDisplay"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:converter="clr-namespace:Widget5.Converter"
mc:Ignorable="d"
d:DesignHeight="630" Width="690" Padding="0" Margin="0">
<UserControl.Resources>
<converter:RowNumberConverter x:Key="rowNumberConverter" />
<converter:HourSlotToBrushConverter x:Key="hourSlotColorConverter" />
</UserControl.Resources>
<Grid Margin="0" Width="690" HorizontalAlignment="Left" MouseRightButtonUp="Grid_MouseRightButtonUp" MouseUp="Grid_MouseUp">
<Grid.RowDefinitions>
<RowDefinition Height="24"></RowDefinition>
<RowDefinition></RowDefinition>
<!--<RowDefinition Height="30"></RowDefinition>-->
</Grid.RowDefinitions>
<!--<Grid HorizontalAlignment="Left" Height="24" VerticalAlignment="Bottom" Grid.Row="2"
Width="680">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="5" />
<ColumnDefinition Width="50" />
<ColumnDefinition Width="2" />
<ColumnDefinition Width="50" />
<ColumnDefinition Width="2" />
<ColumnDefinition Width="50" />
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="50" />
<ColumnDefinition Width="10" />
</Grid.ColumnDefinitions>
<Button Grid.Column="1" Width="48"
Command="{Binding AddCommand}">Add</Button>
<Button Grid.Column="3" Width="48"
Command="{Binding DeleteCommand}">Delete</Button>
<Button Grid.Column="5" Width="48"
Command="{Binding SaveCommand}">Save</Button>
<Button Grid.Column="7" Width="48"
Command="{Binding RefreshCommand}">Refresh</Button>
</Grid>-->
<Grid HorizontalAlignment="Left" Height="24" VerticalAlignment="Top" Width="690" Grid.Row="0"
Background="LightGray">
<Grid.Resources>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="FontSize" Value="10"/>
</Style>
</Grid.Resources>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="22"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="123"/>
<ColumnDefinition Width="30"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="20"/>
</Grid.ColumnDefinitions>
<Border Grid.Column="0" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="1" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="2" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="3" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="4" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="5" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="6" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="7" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="8" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="9" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="10" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="11" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="12" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="13" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="14" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="15" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="16" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="17" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="18" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="19" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="20" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="21" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="22" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="23" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="24" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="25" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="26" BorderThickness="1,1,0,1" BorderBrush="Black"/>
<Border Grid.Column="27" BorderThickness="1,1,1,1" BorderBrush="Black"/>
<TextBlock Text="NO" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0" FontSize="12"/>
<TextBlock Text="削" HorizontalAlignment="Center" Grid.Column="1" VerticalAlignment="Center" Margin="0" FontSize="12"/>
<TextBlock Text="中項目名称" Grid.Row="0" Grid.Column="2" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0" FontSize="12"/>
<TextBlock Text="回数" HorizontalAlignment="Center" Grid.Column="3" VerticalAlignment="Center" Margin="0" FontSize="12"/>
<TextBlock Text="5" Grid.Row="0" Grid.Column="4" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="6" Grid.Row="0" Grid.Column="5" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="7" Grid.Row="0" Grid.Column="6" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="8" Grid.Row="0" Grid.Column="7" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="9" Grid.Row="0" Grid.Column="8" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="10" Grid.Row="0" Grid.Column="9" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="11" Grid.Row="0" Grid.Column="10" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="12" Grid.Row="0" Grid.Column="11" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="13" Grid.Row="0" Grid.Column="12" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="14" Grid.Row="0" Grid.Column="13" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="15" Grid.Row="0" Grid.Column="14" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="16" Grid.Row="0" Grid.Column="15" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="17" Grid.Row="0" Grid.Column="16" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="18" Grid.Row="0" Grid.Column="17" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="19" Grid.Row="0" Grid.Column="18" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="20" Grid.Row="0" Grid.Column="19" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="21" Grid.Row="0" Grid.Column="20" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="20" Grid.Row="0" Grid.Column="21" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="23" Grid.Row="0" Grid.Column="22" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="0" Grid.Row="0" Grid.Column="23" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="1" Grid.Row="0" Grid.Column="24" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="2" Grid.Row="0" Grid.Column="25" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="3" Grid.Row="0" Grid.Column="26" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
<TextBlock Text="4" Grid.Row="0" Grid.Column="27" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0"/>
</Grid>
<DataGrid Name="ScheduleDG" ItemsSource="{Binding ScheduleTable, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
Grid.Row="1" AutoGenerateColumns="False" HeadersVisibility="None"
IsReadOnly="False" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Hidden"
SelectionUnit="CellOrRowHeader" SelectionMode="Extended" Padding="0" FontSize="10" BorderThickness="1" BorderBrush="Black" HorizontalAlignment="Left" Width="690"
Margin="0,-1,-2,0" Height="Auto" AllowDrop="True" RowHeight="18"
PreviewMouseLeftButtonUp="ScheduleTable_PreviewMouseLeftButtonUp"
PreviewMouseLeftButtonDown="ScheduleTable_PreviewMouseLeftButtonDown" MouseMove="ScheduleDG_MouseMove">
<!--<i:Interaction.Triggers>
<i:EventTrigger EventName="MouseLeftButtonUp">
<i:InvokeCommandAction Command="{Binding RelativeSource={RelativeSource AncestorType={x:Type DataGrid}},
Path=DataContext.CellSelectedCommand}"
CommandParameter="{Binding SelectedCells, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=DataGrid}}" />
</i:EventTrigger>
<i:EventTrigger EventName="MouseLeftButtonDown">
<i:InvokeCommandAction Command="{Binding RelativeSource={RelativeSource AncestorType={x:Type DataGrid}},
Path=DataContext.StartCellCommand}"
CommandParameter="{Binding CurrentCell, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=DataGrid}}" />
</i:EventTrigger>
<i:EventTrigger EventName="MouseRightClick">
<i:InvokeCommandAction Command="{Binding RelativeSource={RelativeSource AncestorType={x:Type DataGrid}},
Path=DataContext.RightClickCommand}"/>
</i:EventTrigger>
</i:Interaction.Triggers>-->
<DataGrid.Columns>
<DataGridTextColumn Header="NO" Width="22" IsReadOnly="True">
<DataGridTextColumn.HeaderStyle>
<Style TargetType="{x:Type DataGridColumnHeader}">
<Setter Property="FontSize" Value="10" />
<Setter Property="Margin" Value="0"/>
</Style>
</DataGridTextColumn.HeaderStyle>
<DataGridTextColumn.Binding>
<MultiBinding Converter="{StaticResource rowNumberConverter}">
<Binding />
<Binding RelativeSource="{RelativeSource FindAncestor, AncestorType={x:Type DataGrid}}" />
</MultiBinding>
</DataGridTextColumn.Binding>
</DataGridTextColumn>
<DataGridTemplateColumn Header="削">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<CheckBox x:Name="TestCheckBox" VerticalAlignment="Center" HorizontalAlignment="Center"
IsChecked="{Binding isSelected, Mode=OneWayToSource, UpdateSourceTrigger=PropertyChanged}"/>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
<DataGridTextColumn Header="中項目名称" Binding="{Binding TaskName}" Width="123"/>
<DataGridTextColumn Header="回数" Width="30"/>
<!--<DataGridTemplateColumn Header="5" MaxWidth="10">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Background="{Binding _5, Converter={StaticResource ResourceKey=hourSlotColorConverter}, UpdateSourceTrigger=PropertyChanged}"
IsEnabled="False">
<i:Interaction.Triggers>
<i:EventTrigger EventName="PreviewMouseDown">
<i:InvokeCommandAction Command="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type DataGrid}},
Path=DataContext.StartCellCommand}"
CommandParameter="{Binding CurrentCell, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=DataGrid}}" />
</i:EventTrigger>
</i:Interaction.Triggers>
</TextBlock>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>-->
<DataGridTextColumn Header="5" MaxWidth="10" FontSize="8" Width="10" IsReadOnly="True">
<DataGridTextColumn.ElementStyle>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="Background" Value="{Binding _5, Converter={StaticResource ResourceKey=hourSlotColorConverter}, UpdateSourceTrigger=PropertyChanged}"/>
<Setter Property="Margin" Value="-1" />
</Style>
</DataGridTextColumn.ElementStyle>
</DataGridTextColumn>
<DataGridTextColumn Header="" MaxWidth="10" IsReadOnly="True">
<DataGridTextColumn.ElementStyle>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="Background" Value="{Binding _5_5, Converter={StaticResource ResourceKey=hourSlotColorConverter}, UpdateSourceTrigger=PropertyChanged}"/>
<Setter Property="Margin" Value="-1" />
</Style>
</DataGridTextColumn.ElementStyle>
</DataGridTextColumn>
<DataGridTextColumn Header="6" MaxWidth="10" IsReadOnly="True">
<DataGridTextColumn.ElementStyle>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="Background" Value="{Binding _6, Converter={StaticResource ResourceKey=hourSlotColorConverter}, UpdateSourceTrigger=PropertyChanged}"/>
<Setter Property="Margin" Value="-1" />
</Style>
</DataGridTextColumn.ElementStyle>
</DataGridTextColumn>
<DataGridTextColumn Header="" MaxWidth="10" IsReadOnly="True" >
<DataGridTextColumn.ElementStyle>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="Background" Value="{Binding _3_5, Converter={StaticResource ResourceKey=hourSlotColorConverter}, UpdateSourceTrigger=PropertyChanged}"/>
<Setter Property="Margin" Value="-1" />
</Style>
</DataGridTextColumn.ElementStyle>
</DataGridTextColumn>
<DataGridTextColumn Header="4" MaxWidth="10" IsReadOnly="True" >
<DataGridTextColumn.ElementStyle>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="Background" Value="{Binding _4, Converter={StaticResource ResourceKey=hourSlotColorConverter}, UpdateSourceTrigger=PropertyChanged}"/>
<Setter Property="Margin" Value="-1" />
</Style>
</DataGridTextColumn.ElementStyle>
</DataGridTextColumn>
<DataGridTextColumn Header="" MaxWidth="9" IsReadOnly="True">
<DataGridTextColumn.ElementStyle>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="Background" Value="{Binding _4_5, Converter={StaticResource ResourceKey=hourSlotColorConverter}, UpdateSourceTrigger=PropertyChanged}"/>
<Setter Property="Margin" Value="-1" />
</Style>
</DataGridTextColumn.ElementStyle>
</DataGridTextColumn>
</DataGrid.Columns>
</DataGrid>
</Grid>
</UserControl>
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.ComponentModel.Composition;
using MainModule.Infrastructure.Interface;
using Widget5.ViewModel;
namespace Widget5.View
{
/// <summary>
/// Interaction logic for ExcelDisplay.xaml
/// </summary>
[Export(typeof(IMainModulePage))]
[ExportMetadata("WidgetName", "Widget5")]
[ExportMetadata("MenuNo", 1)]
[ExportMetadata("PageTitle", "WorkItemsPage")]
public partial class WorkItemsDisplay : UserControl, IMainModulePage
{
public WorkItemsDisplay()
{
DataContext = eVM;
InitializeComponent();
}
// inherit
public string WidgetName
{
get { return "Widget5"; }
}
public int MenuNo
{
get { return 1; }
}
public string PageTitle
{
get { return "WorkItemsPage"; }
}
ExcelGridViewModel eVM = new ExcelGridViewModel();
bool isClicked;
List<int> trueCells;
bool hasMoved;
private void ScheduleTable_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
DependencyObject dep = (DependencyObject)e.OriginalSource;
// iteratively traverse the visual tree
while ((dep != null) &&
!(dep is DataGridCell))
{
dep = VisualTreeHelper.GetParent(dep);
}
if (dep == null)
return;
if (dep is DataGridCell)
{
DataGridCell cell = dep as DataGridCell;
DataGridCellInfo cellInfo = new DataGridCellInfo(cell);
while ((dep != null) && !(dep is DataGridRow))
{
dep = VisualTreeHelper.GetParent(dep);
}
DataGridRow row = dep as DataGridRow;
hasMoved = false;
if (eVM.DoEndCell(cell, row, hasMoved))
ScheduleDG.UnselectAllCells();
ScheduleDG.CurrentCell = cellInfo;
}
isClicked = false;
}
private void ScheduleTable_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
DependencyObject dep = (DependencyObject)e.OriginalSource;
// iteratively traverse the visual tree
while ((dep != null) &&
!(dep is DataGridCell))
{
dep = VisualTreeHelper.GetParent(dep);
}
if (dep == null)
return;
if (dep is DataGridCell)
{
DataGridCell cell = dep as DataGridCell;
while ((dep != null) && !(dep is DataGridRow))
{
dep = VisualTreeHelper.GetParent(dep);
}
DataGridRow row = dep as DataGridRow;
trueCells = eVM.DoStartCell(cell, row);
}
isClicked = true;
}
private void Grid_MouseRightButtonUp(object sender, MouseButtonEventArgs e)
{
e.Handled = true;
}
private void ScheduleDG_MouseMove(object sender, MouseEventArgs e)
{
DependencyObject dep = (DependencyObject)e.OriginalSource;
// iteratively traverse the visual tree
while ((dep != null) &&
!(dep is DataGridCell))
{
dep = VisualTreeHelper.GetParent(dep);
}
if (dep == null)
return;
if (dep is DataGridCell)
{
DataGridCell cell = dep as DataGridCell;
DataGridCellInfo cellInfo = new DataGridCellInfo(cell);
while ((dep != null) && !(dep is DataGridRow))
{
dep = VisualTreeHelper.GetParent(dep);
}
DataGridRow row = dep as DataGridRow;
if (isClicked && (trueCells.Count <= 1))
{
hasMoved = true;
eVM.DoEndCell(cell, row, hasMoved);
}
}
}
private void Grid_MouseUp(object sender, MouseButtonEventArgs e)
{
isClicked = false;
hasMoved = false;
}
}
}
使用系统；
使用System.Collections.Generic；
使用System.Linq；
使用系统文本；
使用System.Windows；
使用System.Windows.Controls；
使用System.Windows.Data；
使用System.Windows.Documents；
使用System.Windows.Input；
使用System.Windows.Media；
使用System.Windows.Media.Imaging；
使用System.Windows.Navigation；
使用System.Windows.Shapes；
使用System.ComponentModel.Composition；
使用MainModule.Infrastructure.Interface；
使用Widget5.ViewModel；
命名空间Widget5.View
{
///
///ExcelDisplay.xaml的交互逻辑
///
[导出（类型（IMainModulePage））]
[ExportMetadata（“WidgetName”、“Widget5”）]
[ExportMetadata（“MenuNo”，1）]
[ExportMetadata（“页面标题”、“工作项页面”）]
公共部分类工作项显示：UserControl，IMainModulePage
{
公共工作项显示（）
{
DataContext=eVM；
初始化组件（）；
}
//继承
公共字符串WidgetName
{
获取{return“Widget5”；}
}
梅努诺公共酒店
{
获取{return 1；}
}
公共字符串页面标题
{
获取{return“WorkItemsPage”；}
}
ExcelGridViewModel eVM=新的ExcelGridViewModel（）；
布尔被舔；
列出真实细胞；
布尔搬家了；
私有void ScheduleTable_PreviewMouseLeftButtonUp（对象发送器，鼠标按钮ventargs e）
{
DependencyObject dep=（DependencyObject）e.OriginalSource；
//迭代遍历可视化树
while（（dep！=null）&&
！（dep是DataGridCell））
{
dep=VisualTreeHelper.GetParent（dep）；
}
if（dep==null）
返回；
if（dep是DataGridCell）
{
DataGridCell=dep作为DataGridCell；
资料
public static DependencyProperty OnEnterKeyDownProperty = DependencyProperty.RegisterAttached("OnEnterKeyDown", typeof(ICommand), typeof(TextBoxProperties), new UIPropertyMetadata(null, OnOnEnterKeyDownChanged));
public static ICommand GetOnEnterKeyDown(DependencyObject dependencyObject)
{
return (ICommand)dependencyObject.GetValue(OnEnterKeyDownProperty);
}
public static void SetOnEnterKeyDown(DependencyObject dependencyObject, ICommand value)
{
dependencyObject.SetValue(OnEnterKeyDownProperty, value);
}
public static void OnOnEnterKeyDownChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
TextBox textBox = dependencyObject as TextBox;
if (e.OldValue == null && e.NewValue != null) textBox.PreviewKeyDown += TextBox_OnEnterKeyDown;
else if (e.OldValue != null && e.NewValue == null) textBox.PreviewKeyDown -= TextBox_OnEnterKeyDown;
}
private static void TextBox_OnEnterKeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Enter || e.Key == Key.Return)
{
TextBox textBox = sender as TextBox;
ICommand command = GetOnEnterKeyDown(textBox);
if (command != null && command.CanExecute(textBox)) command.Execute(textBox);
}
e.Handled = false;
}