C# “绘制线”；“慢慢地”；以编程方式使用wpf

我有多个点，我想用WPF画连接这些点的线，但我想看到它们画得很慢，我需要以编程的方式来做，我该怎么做？

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谢谢。

您可以尝试以下方法：

<Grid>
    <Grid.Triggers>
        <EventTrigger RoutedEvent="MouseDown">
            <EventTrigger.Actions>
                <BeginStoryboard>
                    <Storyboard TargetName="MyLine">
                        <DoubleAnimation Storyboard.TargetProperty="X2" To="100" Duration="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetProperty="Y2" To="100" Duration="0:0:5"/>
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger.Actions>
        </EventTrigger>
    </Grid.Triggers>
        <Line X1="10" Y1="10" X2="20" Y2="20" Stroke="Black" Name="MyLine"/>
</Grid>

<Grid>
    <Grid.Triggers>
        <EventTrigger RoutedEvent="Loaded">
            <EventTrigger.Actions>
                <BeginStoryboard>
                    <Storyboard>
                        <DoubleAnimation Storyboard.TargetName="Line1" Storyboard.TargetProperty="X2" To="100" Duration="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetName="Line1" Storyboard.TargetProperty="Y2" To="100" Duration="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetName="Line2" Storyboard.TargetProperty="X2" To="200" Duration="0:0:5" BeginTime="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetName="Line2" Storyboard.TargetProperty="Y2" To="0" Duration="0:0:5" BeginTime="0:0:5"/>
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger.Actions>
        </EventTrigger>
    </Grid.Triggers>
        <Line X1="10" Y1="10" X2="10" Y2="10" Stroke="Black" Name="Line1"/>
    <Line X1="100" Y1="100" X2="100" Y2="100" Stroke="Black" Name="Line2"/>
</Grid>

当你点击这条线时，你会看到它在增长。你可以将这个故事板的开头附加到任何你想要的事件或代码上，我只是为了演示而使用了mousedown

如果要绘制多条线，可以执行以下操作：

<Grid>
    <Grid.Triggers>
        <EventTrigger RoutedEvent="MouseDown">
            <EventTrigger.Actions>
                <BeginStoryboard>
                    <Storyboard TargetName="MyLine">
                        <DoubleAnimation Storyboard.TargetProperty="X2" To="100" Duration="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetProperty="Y2" To="100" Duration="0:0:5"/>
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger.Actions>
        </EventTrigger>
    </Grid.Triggers>
        <Line X1="10" Y1="10" X2="20" Y2="20" Stroke="Black" Name="MyLine"/>
</Grid>

<Grid>
    <Grid.Triggers>
        <EventTrigger RoutedEvent="Loaded">
            <EventTrigger.Actions>
                <BeginStoryboard>
                    <Storyboard>
                        <DoubleAnimation Storyboard.TargetName="Line1" Storyboard.TargetProperty="X2" To="100" Duration="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetName="Line1" Storyboard.TargetProperty="Y2" To="100" Duration="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetName="Line2" Storyboard.TargetProperty="X2" To="200" Duration="0:0:5" BeginTime="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetName="Line2" Storyboard.TargetProperty="Y2" To="0" Duration="0:0:5" BeginTime="0:0:5"/>
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger.Actions>
        </EventTrigger>
    </Grid.Triggers>
        <Line X1="10" Y1="10" X2="10" Y2="10" Stroke="Black" Name="Line1"/>
    <Line X1="100" Y1="100" X2="100" Y2="100" Stroke="Black" Name="Line2"/>
</Grid>

---

当然，如果您不能在XAML中提前声明这些故事板，那么很有可能动态构建这些故事板。

您可以尝试以下方法：

<Grid>
    <Grid.Triggers>
        <EventTrigger RoutedEvent="MouseDown">
            <EventTrigger.Actions>
                <BeginStoryboard>
                    <Storyboard TargetName="MyLine">
                        <DoubleAnimation Storyboard.TargetProperty="X2" To="100" Duration="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetProperty="Y2" To="100" Duration="0:0:5"/>
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger.Actions>
        </EventTrigger>
    </Grid.Triggers>
        <Line X1="10" Y1="10" X2="20" Y2="20" Stroke="Black" Name="MyLine"/>
</Grid>

<Grid>
    <Grid.Triggers>
        <EventTrigger RoutedEvent="Loaded">
            <EventTrigger.Actions>
                <BeginStoryboard>
                    <Storyboard>
                        <DoubleAnimation Storyboard.TargetName="Line1" Storyboard.TargetProperty="X2" To="100" Duration="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetName="Line1" Storyboard.TargetProperty="Y2" To="100" Duration="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetName="Line2" Storyboard.TargetProperty="X2" To="200" Duration="0:0:5" BeginTime="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetName="Line2" Storyboard.TargetProperty="Y2" To="0" Duration="0:0:5" BeginTime="0:0:5"/>
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger.Actions>
        </EventTrigger>
    </Grid.Triggers>
        <Line X1="10" Y1="10" X2="10" Y2="10" Stroke="Black" Name="Line1"/>
    <Line X1="100" Y1="100" X2="100" Y2="100" Stroke="Black" Name="Line2"/>
</Grid>

当你点击这条线时，你会看到它在增长。你可以将这个故事板的开头附加到任何你想要的事件或代码上，我只是为了演示而使用了mousedown

如果要绘制多条线，可以执行以下操作：

<Grid>
    <Grid.Triggers>
        <EventTrigger RoutedEvent="MouseDown">
            <EventTrigger.Actions>
                <BeginStoryboard>
                    <Storyboard TargetName="MyLine">
                        <DoubleAnimation Storyboard.TargetProperty="X2" To="100" Duration="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetProperty="Y2" To="100" Duration="0:0:5"/>
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger.Actions>
        </EventTrigger>
    </Grid.Triggers>
        <Line X1="10" Y1="10" X2="20" Y2="20" Stroke="Black" Name="MyLine"/>
</Grid>

<Grid>
    <Grid.Triggers>
        <EventTrigger RoutedEvent="Loaded">
            <EventTrigger.Actions>
                <BeginStoryboard>
                    <Storyboard>
                        <DoubleAnimation Storyboard.TargetName="Line1" Storyboard.TargetProperty="X2" To="100" Duration="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetName="Line1" Storyboard.TargetProperty="Y2" To="100" Duration="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetName="Line2" Storyboard.TargetProperty="X2" To="200" Duration="0:0:5" BeginTime="0:0:5"/>
                        <DoubleAnimation Storyboard.TargetName="Line2" Storyboard.TargetProperty="Y2" To="0" Duration="0:0:5" BeginTime="0:0:5"/>
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger.Actions>
        </EventTrigger>
    </Grid.Triggers>
        <Line X1="10" Y1="10" X2="10" Y2="10" Stroke="Black" Name="Line1"/>
    <Line X1="100" Y1="100" X2="100" Y2="100" Stroke="Black" Name="Line2"/>
</Grid>

---

当然，如果您不能在XAML中提前声明这些故事板，那么很有可能动态构建这些故事板。

我们是在谈论straigt线条还是也需要曲线？对于直线，请看这些直线的轴线是平行的还是任意角度的？在第一种情况下，您可能不需要为每个时间增量绘制一小段线。如果他们有任意的倾向，事情会变得更加复杂。查看此链接。它可能会帮助你。。。[以编程方式绘制和移动线条][1][1]：我尝试过故事板，但不知道如何从code@RahulRanjan我不想移动线条，我想让它们慢慢画，我的意思是看到它们在画。我们说的是直线还是曲线？对于直线，请看这些直线的轴线是平行的还是任意角度的？在第一种情况下，您可能不需要为每个时间增量绘制一小段线。如果他们有任意的倾向，事情会变得更加复杂。查看此链接。它可能会帮助你。。。[以编程方式绘制和移动线条][1][1]：我尝试过故事板，但不知道如何从code@RahulRanjan我不想移动线条，我想让它们慢慢地画，我的意思是看到它们被画出来非常感谢你，但我想从代码开始，我在这个链接上找到了我的答案非常感谢，但是我想从代码开始，我在这个链接上找到了我的答案