WPF 自定义模板 Button闪亮效果

Posted 2020-08-06 唐宋元明清的博客

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Button的选中Effect，我们看下下面的效果：

让我们再放大一点：

怎么设置上面样式呢？直接设置Button的Effect，有点问题，因为Effect不是四周环绕的。那我们也只能重新定义Template了。下面看控件模板：

    <ControlTemplate x:Key="LightedBtnTemplate" TargetType="RadioButton">
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="5"></RowDefinition>
                <RowDefinition></RowDefinition>
                <RowDefinition Height="5"></RowDefinition>
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="5"></ColumnDefinition>
                <ColumnDefinition></ColumnDefinition>
                <ColumnDefinition Width="5"></ColumnDefinition>
            </Grid.ColumnDefinitions>
            <Rectangle Grid.Row="1" Grid.Column="1" Fill="{TemplateBinding Background}"></Rectangle>

            <Grid x:Name="Grid_00" Grid.Row="0" Grid.Column="0"></Grid>
            <Grid x:Name="Grid_02" Grid.Row="0" Grid.Column="2"></Grid>
            <Grid x:Name="Grid_20" Grid.Row="2" Grid.Column="0"></Grid>
            <Grid x:Name="Grid_22" Grid.Row="2" Grid.Column="2"></Grid>
            <Grid x:Name="Grid_Top" Grid.Row="0" Grid.Column="1"></Grid>
            <Grid x:Name="Grid_Bottom" Grid.Row="2" Grid.Column="1"></Grid>
            <Grid x:Name="Grid_Left" Grid.Row="1" Grid.Column="0"></Grid>
            <Grid x:Name="Grid_Right" Grid.Row="1" Grid.Column="2"></Grid>
        </Grid>
        <ControlTemplate.Triggers>
            <Trigger Property="IsChecked" Value="True">
                <Setter TargetName="Grid_00" Property="Background">
                    <Setter.Value>
                        <LinearGradientBrush StartPoint="1,1" EndPoint="0,0">
                            <GradientStop Color="White" Offset="0"></GradientStop>
                            <GradientStop Color="Transparent" Offset="0.5"></GradientStop>
                        </LinearGradientBrush>
                    </Setter.Value>
                </Setter>
                <Setter TargetName="Grid_02" Property="Background">
                    <Setter.Value>
                        <LinearGradientBrush StartPoint="0,1" EndPoint="1,0">
                            <GradientStop Color="White" Offset="0"></GradientStop>
                            <GradientStop Color="Transparent" Offset="0.5"></GradientStop>
                        </LinearGradientBrush>

                    </Setter.Value>
                </Setter>
                <Setter TargetName="Grid_20" Property="Background">
                    <Setter.Value>
                        <LinearGradientBrush StartPoint="1,0" EndPoint="0,1">
                            <GradientStop Color="White" Offset="0"></GradientStop>
                            <GradientStop Color="Transparent" Offset="0.5"></GradientStop>
                        </LinearGradientBrush>
                    </Setter.Value>
                </Setter>
                <Setter TargetName="Grid_22" Property="Background">
                    <Setter.Value>
                        <LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
                            <GradientStop Color="White" Offset="0"></GradientStop>
                            <GradientStop Color="Transparent" Offset="0.5"></GradientStop>
                        </LinearGradientBrush>
                    </Setter.Value>
                </Setter>
                <Setter TargetName="Grid_Top" Property="Background">
                    <Setter.Value>
                        <LinearGradientBrush StartPoint="1,1" EndPoint="1,0">
                            <GradientStop Color="White" Offset="0"></GradientStop>
                            <GradientStop Color="Transparent" Offset="1"></GradientStop>
                        </LinearGradientBrush>
                    </Setter.Value>
                </Setter>
                <Setter TargetName="Grid_Bottom" Property="Background">
                    <Setter.Value>
                        <LinearGradientBrush StartPoint="1,0" EndPoint="1,1">
                            <GradientStop Color="White" Offset="0"></GradientStop>
                            <GradientStop Color="Transparent" Offset="1"></GradientStop>
                        </LinearGradientBrush>
                    </Setter.Value>
                </Setter>
                <Setter TargetName="Grid_Left" Property="Background">
                    <Setter.Value>
                        <LinearGradientBrush StartPoint="1,1" EndPoint="0,1">
                            <GradientStop Color="White" Offset="0"></GradientStop>
                            <GradientStop Color="Transparent" Offset="1"></GradientStop>
                        </LinearGradientBrush>
                    </Setter.Value>
                </Setter>
                <Setter TargetName="Grid_Right" Property="Background">
                    <Setter.Value>
                        <LinearGradientBrush StartPoint="0,1" EndPoint="1,1">
                            <GradientStop Color="White" Offset="0"></GradientStop>
                            <GradientStop Color="Transparent" Offset="1"></GradientStop>
                        </LinearGradientBrush>
                    </Setter.Value>
                </Setter>
            </Trigger>
        </ControlTemplate.Triggers>
    </ControlTemplate>

~~~估计你一下就能看懂了，只是用了点小技巧，多加了几个外部元素。

当然这个也是可以设置成自动的，然后在选中的时候，再加宽度和高度，这样就不会影响控件本身的布局。

下面是Demo：

<Window x:Class="WpfApplication13.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="200" Width="525" Background="LightBlue">
    <Window.Resources>
        <ControlTemplate x:Key="LightedBtnTemplate" TargetType="RadioButton">
            <Grid>
                <Grid.RowDefinitions>
                    <RowDefinition Height="5"></RowDefinition>
                    <RowDefinition></RowDefinition>
                    <RowDefinition Height="5"></RowDefinition>
                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="5"></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition Width="5"></ColumnDefinition>
                </Grid.ColumnDefinitions>
                <Rectangle Grid.Row="1" Grid.Column="1" Fill="{TemplateBinding Background}"></Rectangle>

                <Grid x:Name="Grid_00" Grid.Row="0" Grid.Column="0"></Grid>
                <Grid x:Name="Grid_02" Grid.Row="0" Grid.Column="2"></Grid>
                <Grid x:Name="Grid_20" Grid.Row="2" Grid.Column="0"></Grid>
                <Grid x:Name="Grid_22" Grid.Row="2" Grid.Column="2"></Grid>
                <Grid x:Name="Grid_Top" Grid.Row="0" Grid.Column="1"></Grid>
                <Grid x:Name="Grid_Bottom" Grid.Row="2" Grid.Column="1"></Grid>
                <Grid x:Name="Grid_Left" Grid.Row="1" Grid.Column="0"></Grid>
                <Grid x:Name="Grid_Right" Grid.Row="1" Grid.Column="2"></Grid>
            </Grid>
            <ControlTemplate.Triggers>
                <Trigger Property="IsChecked" Value="True">
                    <Setter TargetName="Grid_00" Property="Background">
                        <Setter.Value>
                            <LinearGradientBrush StartPoint="1,1" EndPoint="0,0">
                                <GradientStop Color="White" Offset="0"></GradientStop>
                                <GradientStop Color="Transparent" Offset="0.5"></GradientStop>
                            </LinearGradientBrush>
                        </Setter.Value>
                    </Setter>
                    <Setter TargetName="Grid_02" Property="Background">
                        <Setter.Value>
                            <LinearGradientBrush StartPoint="0,1" EndPoint="1,0">
                                <GradientStop Color="White" Offset="0"></GradientStop>
                                <GradientStop Color="Transparent" Offset="0.5"></GradientStop>
                            </LinearGradientBrush>

                        </Setter.Value>
                    </Setter>
                    <Setter TargetName="Grid_20" Property="Background">
                        <Setter.Value>
                            <LinearGradientBrush StartPoint="1,0" EndPoint="0,1">
                                <GradientStop Color="White" Offset="0"></GradientStop>
                                <GradientStop Color="Transparent" Offset="0.5"></GradientStop>
                            </LinearGradientBrush>
                        </Setter.Value>
                    </Setter>
                    <Setter TargetName="Grid_22" Property="Background">
                        <Setter.Value>
                            <LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
                                <GradientStop Color="White" Offset="0"></GradientStop>
                                <GradientStop Color="Transparent" Offset="0.5"></GradientStop>
                            </LinearGradientBrush>
                        </Setter.Value>
                    </Setter>
                    <Setter TargetName="Grid_Top" Property="Background">
                        <Setter.Value>
                            <LinearGradientBrush StartPoint="1,1" EndPoint="1,0">
                                <GradientStop Color="White" Offset="0"></GradientStop>
                                <GradientStop Color="Transparent" Offset="1"></GradientStop>
                            </LinearGradientBrush>
                        </Setter.Value>
                    </Setter>
                    <Setter TargetName="Grid_Bottom" Property="Background">
                        <Setter.Value>
                            <LinearGradientBrush StartPoint="1,0" EndPoint="1,1">
                                <GradientStop Color="White" Offset="0"></GradientStop>
                                <GradientStop Color="Transparent" Offset="1"></GradientStop>
                            </LinearGradientBrush>
                        </Setter.Value>
                    </Setter>
                    <Setter TargetName="Grid_Left" Property="Background">
                        <Setter.Value>
                            <LinearGradientBrush StartPoint="1,1" EndPoint="0,1">
                                <GradientStop Color="White" Offset="0"></GradientStop>
                                <GradientStop Color="Transparent" Offset="1"></GradientStop>
                            </LinearGradientBrush>
                        </Setter.Value>
                    </Setter>
                    <Setter TargetName="Grid_Right" Property="Background">
                        <Setter.Value>
                            <LinearGradientBrush StartPoint="0,1" EndPoint="1,1">
                                <GradientStop Color="White" Offset="0"></GradientStop>
                                <GradientStop Color="Transparent" Offset="1"></GradientStop>
                            </LinearGradientBrush>
                        </Setter.Value>
                    </Setter>
                </Trigger>
            </ControlTemplate.Triggers>
        </ControlTemplate>
    </Window.Resources>
    <Grid>
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