[英]Conditional formatting a GridControl cell based on a value of a property in the viewmodel
[英]Conditional ControlTemplate based on property of ViewModel
是否可以根據視圖模型的屬性“選擇”其他控件模板?
我有以下用戶控制模板:
<UserControl.Template>
<ControlTemplate TargetType="UserControl">
<RadioButton
GroupName="DisplayButtons"
Content="{TemplateBinding Content}"/>
</ControlTemplate>
</UserControl.Template>
基於視圖模型中的布爾值,我想使用RadioButton
或Button
。
我該如何實現?
您可以將Style
與DataTrigger
一起使用,以設置Template
屬性:
<UserControl>
<UserControl.Style>
<Style TargetType="UserControl">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="UserControl">
<Button Content="Button" />
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<DataTrigger Binding="{Binding ViewModelProperty}" Value="True">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="UserControl">
<RadioButton Content="RadioButton" />
</ControlTemplate>
</Setter.Value>
</Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</UserControl.Style>
</UserControl>
每種情況下可以使用不同的視圖,但是在復雜模板的情況下,此方法更有用。 對於當前情況,最簡單的方法是使用觸發器:
方法1
<UserControl x:Class="Myusercontrolnamespace.Views.Myusercontrol"
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" "
mc:Ignorable = "d" Height="auto" Width="auto" >
<UserControl.Resources>
<DataTemplate x:Key="RadioButtontTemplate">
<RadioButton/>
</DataTemplate>
<DataTemplate x:Key="ButtonTemplate">
<Button/>
</DataTemplate>
</UserControl.Resources>
<Grid>
<ContentControl Content="{Binding }">
<ContentControl.Style>
<Style TargetType="{x:Type ContentControl}">
<Setter Property="ContentTemplate" Value="{StaticResource RadioButtontTemplate}" />
<Style.Triggers>
<DataTrigger Binding="{Binding IsRadioButton}" Value="False">
<Setter Property="ContentTemplate" Value="{StaticResource ButtonTemplate}" />
</DataTrigger>
</Style.Triggers>
</Style>
</ContentControl.Style>
</ContentControl>
</Grid>
</UserControl>
方法2
<UserControl x:Class="Myusercontrolnamespace.Views.Myusercontrol"
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" "
mc:Ignorable = "d" Height="auto" Width="auto" >
<UserControl.Resources>
<DataTemplate x:Key="RadioButtontTemplate">
<RadioButton/>
</DataTemplate>
<DataTemplate x:Key="ButtonTemplate">
<Button/>
</DataTemplate>
</UserControl.Resources>
<Grid>
<DataTemplate x:Key="globalControlTemplate">
<ContentControl Content="{Binding }">
<ContentControl.Style>
<Style TargetType="{x:Type ContentControl}">
<Setter Property="ContentTemplate" Value="{StaticResource RadioButtontTemplate}" />
<Style.Triggers>
<DataTrigger Binding="{Binding ConsumerType}" Value="Business">
<Setter Property="ContentTemplate" Value="{StaticResource ButtonTemplate}" />
</DataTrigger>
</Style.Triggers>
</Style>
</ContentControl.Style>
</ContentControl>
</DataTemplate>
<ContentControl Content="{Binding globalControlTemplate}" />
</Grid>
</UserControl>
親切地
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