WPF如何使Image.Source居中

Question

我正在开发WPF .NET 3.5和Visual Studio 2010中的自定义图像控件.

在WinForms中,PicutreBox控件具有SizeMode属性,其中包含" CenterImage ".

我希望我的Image控件具备这种能力.

反正呢？

谢谢

我的XAML代码:

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="768" Width="1024" xmlns:my="http://schemas.sharpsoft.net/xaml" xmlns:my1="clr-namespace:WpfApplication1">
    <Grid>
        <my1:CustomControl1
                    x:Name="customControl11"
                    Width="206"
                    Height="197"
                    HorizontalAlignment="Left"
                    VerticalAlignment="Top"
                    Margin="18,58,0,0"
                    Stretch="Uniform"/>
    </Grid>
</Window>

我的CustomControl代码:

public class CustomControl1 : Image
{
    public CustomControl1()
    {
        // Bitmap to Stream
        Stream ms = new MemoryStream();
        Properties.Resources.webcam_background.Save(ms, ImageFormat.Png);

        // Stream to BitmapImage
        BitmapImage bitmap = new BitmapImage();
        bitmap.BeginInit();
        bitmap.StreamSource = ms;
        bitmap.EndInit();

        // Set it
        Source = bitmap;
    }
}

其中"webcam_backgroud"是默认视觉工作室资源编辑器添加的png图像.

Answer 1

您应该尝试Image使用对齐来使整个元素居中:

    <Grid>
        <Image Stretch="None"
               HorizontalAlignment="Center"
               VerticalAlignment="Center" />
    </Grid>

Answer 2

将“ 拉伸”设置为“无”。

<Image Source="..." Stretch="None" />