使用c# wpf放大imageView图像

<Grid>
    <Image x:Name="imageView" Stretch="Uniform" />
</Grid>

BitmapImage bitmap = new BitmapImage();
bitmap.BeginInit();
bitmap.UriSource = new Uri("path_to_image_file");
bitmap.EndInit();

imageView.Source = bitmap;

private void imageView_MouseWheel(object sender, MouseWheelEventArgs e)
{
    // 获取当前图像的缩放比例
    double scale = imageView.LayoutTransform.Value.M11;

    // 根据鼠标滚轮的方向调整缩放比例
    if (e.Delta > 0)
    {
        scale *= 1.1; // 放大图像
    }
    else
    {
        scale /= 1.1; // 缩小图像
    }

    // 创建缩放变换并应用于图像
    ScaleTransform scaleTransform = new ScaleTransform(scale, scale);
    imageView.LayoutTransform = scaleTransform;
}

<Grid>
    <Image x:Name="imageView" Stretch="Uniform" MouseWheel="imageView_MouseWheel" />
</Grid>