c#：如何获取从网络下载到图片的属性，例如大小；并设置picBox的大小为图片大小；就是自适应

你好，设置 PictureBox 的 SizeMode 属性为AutoSize就可以自适应的大小了。。。

另外，PictureBox 控件可以直接加载网络的，例如：

pictureBox1ImageLocation = @"";

就可以直接加载网络了哦。

用动画实现就好了，代码如下
<Grid>
<GridResources>
<Style TargetType="Image">
<Setter Property="LayoutTransform">
<SetterValue>
<ScaleTransform></ScaleTransform>
</SetterValue>
</Setter>
<StyleTriggers>
<EventTrigger RoutedEvent="ImageMouseEnter">
<EventTriggerActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation StoryboardTargetProperty="LayoutTransformScaleX" To="15" Duration="0:0:025"></DoubleAnimation>
<DoubleAnimation StoryboardTargetProperty="LayoutTransformScaleY" To="15" Duration="0:0:025"></DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</EventTriggerActions>
</EventTrigger>
<EventTrigger RoutedEvent="ImageMouseLeave">
<EventTriggerActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation StoryboardTargetProperty="LayoutTransformScaleX" To="1" Duration="0:0:025"></DoubleAnimation>
<DoubleAnimation StoryboardTargetProperty="LayoutTransformScaleY" To="1" Duration="0:0:025"></DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</EventTriggerActions>
</EventTrigger>
</StyleTriggers>
</Style>
</GridResources>
<Image Source="npng " Height="40" Width="30">
</Image>
</Grid>

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