这应该相对容易，但由于某种原因，我没有让它工作。我的课程ViewWrapper有一个属性ViewGroup和ViewGroupEditable。我的数据网格中有一个绑定到ViewGroup属性的列，现在我想在属性ViewGroupEditable为false时禁用该单元格上的编辑。所以我创建了一个带有简单数据触发器的DataGridCell样式，但它没有做任何事情。我错过了什么？
XAML：
<UserControl x:Class="GrimshawRibbon.Revit.Views.ViewManager.ViewManagerView"
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:i="http://schemas.microsoft.com/expression/2010/interactivity"
xmlns:local="clr-namespace:GrimshawRibbon.Revit.Views.ViewManager"
xmlns:ex="clr-namespace:GrimshawRibbon.Revit.Wpf.Extensions"
xmlns:controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
xmlns:cmd="clr-namespace:GalaSoft.MvvmLight.Command;assembly=GalaSoft.MvvmLight.Platform"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="500">
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colors.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Blue.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseLight.xaml" />
<ResourceDictionary Source="pack://application:,,,/GrimshawRibbon;component/Revit/Wpf/Style/GrimshawTheme.xaml"/>
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</UserControl.Resources>
<Grid>
<Grid.Resources>
<Style x:Key="dgCellStyle" TargetType="{x:Type DataGridCell}" BasedOn="{StaticResource {x:Type DataGridCell}}">
<Style.Triggers>
<DataTrigger Binding="{Binding ViewGroupEditable}" Value="True">
<Setter Property="IsEnabled" Value="False"/>
<Setter Property="Foreground" Value="LightGray"/>
</DataTrigger>
</Style.Triggers>
</Style>
</Grid.Resources>
<ex:DataGridEx x:Name="dgViews"
Style="{StaticResource AzureDataGrid}"
Margin="10"
AutoGenerateColumns="False"
ItemsSource="{Binding Views, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
CanUserAddRows="False"
IsReadOnly="False"
SelectionMode="Extended"
SelectionUnit="FullRow"
SelectedItem="{Binding SelectedRow, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
SelectedItemsList="{Binding SelectedViews, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}">
<i:Interaction.Triggers>
<i:EventTrigger EventName="CellEditEnding">
<cmd:EventToCommand PassEventArgsToCommand="True" Command="{Binding CellEditEndingCommand}"/>
</i:EventTrigger>
</i:Interaction.Triggers>
<DataGrid.Columns>
<DataGridTextColumn Header="Name" Binding="{Binding Name, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="*"/>
<DataGridTextColumn Header="ViewType" Binding="{Binding ViewType}" Width="100" IsReadOnly="True"/>
<DataGridTextColumn Header="ViewGroup" Binding="{Binding ViewGroup, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="130" CellStyle="{StaticResource dgCellStyle}"/>
<DataGridTextColumn Header="ViewSubGroup" Binding="{Binding ViewSubGroup, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Width="130" IsReadOnly="False"/>
<DataGridCheckBoxColumn ElementStyle="{DynamicResource MetroDataGridCheckBox}"
EditingElementStyle="{DynamicResource MetroDataGridCheckBox}"
Header="OnSheet"
Binding="{Binding OnSheet, Mode=TwoWay}"
IsReadOnly="True"
Width="80">
</DataGridCheckBoxColumn>
<DataGridTemplateColumn Header="ViewTemplate" Width="180">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding ViewTemplate.Name}" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
<DataGridTemplateColumn.CellEditingTemplate>
<DataTemplate>
<ComboBox ItemsSource="{Binding DataContext.ViewTemplates, RelativeSource={RelativeSource AncestorType=DataGrid}}"
SelectedItem="{Binding ViewTemplate}"
DisplayMemberPath="Name">
<i:Interaction.Triggers>
<i:EventTrigger EventName="SelectionChanged">
<cmd:EventToCommand PassEventArgsToCommand="True"
Command="{Binding DataContext.SelectChangeCommand, RelativeSource={RelativeSource AncestorType=DataGrid}}"/>
</i:EventTrigger>
</i:Interaction.Triggers>
</ComboBox>
</DataTemplate>
</DataGridTemplateColumn.CellEditingTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</ex:DataGridEx>
</Grid>
</UserControl>
数据网格中的每一行都绑定到这样的对象：
public class ViewWrapper : ElementWrapper
{
public string ViewType { get; set; }
public bool IsSelected { get; set; }
public bool OnSheet { get; set; }
public string ViewGroup { get; set; }
public string ViewSubGroup { get; set; }
public ViewWrapper ViewTemplate { get; set; }
public bool ViewGroupEditable { get; set; }
public bool ViewSubGroupEditable { get; set; }
}
答案 0 :(得分：1)
我能看到的唯一问题是String content;
Pattern pattern = Pattern.compile(".*(?<=overlay-link\" href=\").*?(?=\">).*");
try {
Scanner scanner = new Scanner(new File("sourceCode.txt"));
while (scanner.hasNext()) {
content = scanner.nextLine();
if (pattern.matcher(content).matches()) {
System.out.println(content.replaceAll("(?<=overlay-link\" href=\").*?(?=\">)", ""));
}
}
} catch (IOException ex) {
Logger.getLogger(SourceCodeExample.class.getName()).log(Level.SEVERE, null, ex);
}
没有实现ViewWrapper。您应该对所有属性使用类似的内容：
INotifyPropertyChanged请参阅this post以及其他许多内容。
答案 1 :(得分：0)
DataGridTextColumn没有IsEnabled属性，因此无法设置。您可以尝试使用IsReadOnly（请注意，您将禁用整个列）。
这种方法可能会更幸运：
<DataGridTextColumn Width="80" Header="My column header" Binding="{Binding Path=MyProperty, Mode=TwoWay}">
<DataGridTextColumn.EditingElementStyle>
<Style TargetType="TextBox">
<Setter Property="IsEnabled" Value="{Binding IsEditingEnabled}"/>
</Style>
</DataGridTextColumn.EditingElementStyle>
</DataGridTextColumn>
您可以为列中显示的数据定义两种样式：普通样式（ElementStyle）以及在编辑模式（EditingElementStyle）中显示的样式。虽然您可能希望在这种情况下进行更多样式设置，以使TextBlock和TextBox具有一致的外观。
或者这种方式（未经测试）：
<Style x:Key="dgCellStyle" TargetType="{x:Type TextBox}"">
<Style.Triggers>
<DataTrigger Binding="{Binding ViewGroupEditable}" Value="True">
<Setter Property="IsEnabled" Value="False"/>
<Setter Property="Foreground" Value="LightGray"/>
</DataTrigger>
</Style.Triggers>
</Style>
<DataGridTextColumn Header="ViewGroup"
Binding="{Binding ViewGroup, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
Width="130"
EditingElementStyle="{StaticResource dgCellStyle}"/>