C# WPF °´Å¥ÐüͣʱÇл»°´Å¥Í¼Æ¬

<Button x:Name="btnExit"  HorizontalAlignment="Left" Margin="452,238,0,0" VerticalAlignment="Top" Width="20" Height="20" ToolTip="Í˳ö³ÌÐò">
            <Button.Template>
                <ControlTemplate TargetType="{x:Type Button}">
                    <Border>
                        <Image Name="img" Source="Resources/close-act.png"/>
                    </Border>
                    <ControlTemplate.Triggers>
                        <!-- button disabled style -->
                        <Trigger Property="IsEnabled" Value="False">
                            <Setter TargetName="img" Property="Source" Value="Resources/close-f.png">
                            </Setter>
                        </Trigger>

                        <!-- button mouse over style -->
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter TargetName="img" Property="Source" Value="Resources/close-f.png">
                            </Setter>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Button.Template>
        </Button>



/*****************¶àÌõ¼þÇé¿ö*********************/
<MultiTrigger>
    <MultiTrigger.Conditions>
        <Condition Property = "IsMouseOver" Value="True" />
        <Condition Property = "Tag" Value="Max" />
    </MultiTrigger.Conditions>
    <Setter TargetName = "img" Property="Source" Value="skin/default/maximize-restory-over.png" />
</MultiTrigger>