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Wpf 字典触发器

Posted on 2020-08-07 14:48  闪电龟龟  阅读(179)  评论(0编辑  收藏  举报

关于wpf的触发器总共三大类:Trigger、DataTrigger(没弄过,主要是数据绑定,不解释)、EventTrigger(没弄过,主要是动画渲染,不解释)

1.Trigger

  Trigger也叫简单触发器,主要是用来控制样式渲染用的,和css3功能及其相似。

  Trigger的单条件触发器案例:

不适用新控件案例:
<Style x:Key="UInfoBCss" TargetType="Border">
        <Style.Triggers>
            <!--鼠标移上去变色,离开使value=false即可-->
            <Trigger Property="IsMouseOver" Value="true">
                <Setter Property="BorderBrush" Value="#96c4ee"></Setter>
            </Trigger>
        </Style.Triggers>
    </Style>
使用新控件案例:
<Style x:Key="EHCBtnECss" TargetType="Button" BasedOn="{StaticResource {x:Static ToolBar.ButtonStyleKey}}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Button">
                    <StackPanel>
                        <Image x:Name="CBImg" Source="Images\按钮.png" Height="45" Margin="0,0,0,0"></Image>
                        <Label Width="50" Height="45" Margin="0,-45,0,0" Block.TextAlignment="Center" Padding="0,6,0,0" Content="Cancel"></Label>
                    </StackPanel>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsMouseOver" Value="true">
                            <Setter TargetName="CBImg" Property="Source" Value="Images\按钮经过.png"></Setter>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

  Trigger的多条件(MultiTrigger)触发器案例:

<Style x:Key="EHCloseCssF" TargetType="Button">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Button">
                    <Image x:Name="EHTmg" Source="Images\关闭提示.png"></Image>
                    <ControlTemplate.Triggers>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="IsMouseOver" Value="true"></Condition>
                                <Condition Property="IsFocused" Value="true"></Condition>
                            </MultiTrigger.Conditions>
                            <Setter TargetName="EHTmg" Property="Source" Value="Images\关闭提示_悬停.png"></Setter>
                        </MultiTrigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

 

 

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