C# 如何在WPF DataGrid列中创建互斥复选框
我有以下DataGrid代码C# 如何在WPF DataGrid列中创建互斥复选框,c#,.net,wpf,xaml,datagrid,C#,.net,Wpf,Xaml,Datagrid,我有以下DataGrid代码 <UserControl x:Class="abc.WPFApp.UCGrid" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:WPFtoolkit="http://schemas.microsoft.com/wpf/2008/to
<UserControl x:Class="abc.WPFApp.UCGrid"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:WPFtoolkit="http://schemas.microsoft.com/wpf/2008/toolkit"
xmlns:local="clr-namespace:abc.WPFApp">
<UserControl.Resources>
<!--Restrict editing based on IsVariable-->
<Style x:Key="CheckBoxCellStyle" TargetType="{x:Type CheckBox}">
<Style.Triggers>
<DataTrigger Binding="{Binding Path=IsVariable}" Value="true">
<Setter Property="IsEnabled" Value="false"/>
</DataTrigger>
</Style.Triggers>
<Setter Property="HorizontalAlignment" Value="Center"/>
</Style>
</UserControl.Resources>
<Grid>
<WPFtoolkit:DataGrid x:Name="UCdataGridView" ItemsSource="{Binding}"
CellStyle="{StaticResource defaultCellStyle}"
RowStyle="{StaticResource defaultRowStyle}"
ColumnHeaderStyle="{StaticResource defaultDataGridColumnHeader}"
SelectionUnit="FullRow"
IsSynchronizedWithCurrentItem="True"
RowBackground="White"
AlternatingRowBackground="AliceBlue"
AutoGenerateColumns="False" SelectionMode="Extended" RowHeaderWidth="20"
CanUserAddRows="True" CanUserDeleteRows="True" CanUserReorderColumns="False"
CanUserResizeColumns="True" AllowDrop="True" KeyUp="UCGridKeyUp" >
<WPFtoolkit:DataGrid.Columns>
<WPFtoolkit:DataGridCheckBoxColumn x:Name="dgChkRepeatingData" Binding="{Binding Path=MasterDataFlag}" MaxWidth="135" MinWidth="80"
Header="Repeating data" Visibility="Collapsed" IsReadOnly="{Binding (IsVariable)}"
EditingElementStyle="{StaticResource CheckBoxCellStyle}"
>
</WPFtoolkit:DataGridCheckBoxColumn>
<WPFtoolkit:DataGridCheckBoxColumn MaxWidth="100" Header="Max Element" x:Name="dgChkMaxElement"
Binding="{Binding Path=MaxElement}" MinWidth="70" Visibility="Collapsed"
EditingElementStyle="{StaticResource CheckBoxCellStyle}">
</WPFtoolkit:DataGridCheckBoxColumn>
<WPFtoolkit:DataGridCheckBoxColumn MaxWidth="100" Header="In For Loop" x:Name="dgChkInForLoop"
Binding="{Binding Path=InForLoop}" MinWidth="70" Visibility="Collapsed"
EditingElementStyle="{StaticResource CheckBoxCellStyle}">
</WPFtoolkit:DataGridCheckBoxColumn>
<WPFtoolkit:DataGridTextColumn x:Name="dgXPath" Binding="{Binding Path=XPath}" Header="XPath" Width="500"
Visibility="Collapsed" IsReadOnly="{Binding Path=IsVariable}"
EditingElementStyle="{StaticResource TextBoxCellStyle}"/>
</WPFtoolkit:DataGrid.Columns>
</WPFtoolkit:DataGrid>
此用户控制网格由三列组成,这三列应相互排斥。
我想通过在XAML本身中创建触发器来实现这一点,我们如何才能做到这一点?我正在尝试为第三列“InFor”创建这样的样式,但它根本不起作用
<Style x:Key="mutualCheckInForLoop" TargetType="{x:Type WPFtoolkit:DataGridCell}" BasedOn="{StaticResource {x:Type WPFtoolkit:DataGridCell}}">
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=dgChkRepeatingData,Path=IsChecked}" Value="True">
<Setter Property="CheckBox.IsChecked" Value="False" />
</DataTrigger>
<DataTrigger Binding="{Binding ElementName=dgChkMaxElement,Path=IsChecked}" Value="True">
<Setter Property="CheckBox.IsChecked" Value="False" />
</DataTrigger>
</Style.Triggers>
</Style>
您可以使用带有复选框样式的单选按钮来实现互斥行为。如果绑定单选按钮有任何问题:
但是,我同意贾斯特的观点。如果将每一行绑定到ViewModel,则放置此逻辑限制的位置是ViewModel。遇到的问题是显式设置值会覆盖任何触发器值。在进行数据绑定时,是否有任何理由不能在后端模型object中实现独占性?为什么要这样做?它是应用程序逻辑的一部分,属于ViewModel而不是视图。您真的不应该在XAML中使用触发器来实现应用程序逻辑/约束。由于这些复选框无法从相应的C#文件访问,我们如何使用C#代码实现这一点谢谢您的建议。Look-less控件可以轻松地交换样式并实现预期的行为,而不管后端使用什么实现。我根据您的建议添加了所需的样式-工作完美无瑕!
<RadioButton IsChecked="{Binding VMProperty}" GroupName="IsSelectedGroup">
<RadioButton.Style>
<Style TargetType="{x:Type RadioButton}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="RadioButton">
<CheckBox IsChecked="{Binding IsChecked, Mode=TwoWay, RelativeSource={RelativeSource AncestorType=RadioButton}}" Content="{TemplateBinding Content}" />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</RadioButton.Style>
</RadioButton>