如何从 C# 中的代码后面显示图片框
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How to display a PictureBox from behind code in C#
提问by Adrien Brunelat
I know my question sounds basic, but i searched all over the place and found nothing.. this is my code :
我知道我的问题听起来很基本，但我搜索了所有地方，一无所获..这是我的代码：
public MainWindow()
{
InitializeComponent();
Map newMap = new Map();
newMap.setMapStrategy(new SmallMapStrategy());
newMap.createMap();
System.Windows.Forms.PictureBox pictureBox1 = new System.Windows.Forms.PictureBox();
pictureBox1.Paint += new System.Windows.Forms.PaintEventHandler(newMap.grid[3].afficher);
}
this is the afficher function :
这是afficher函数：
public override void afficher(object sender, PaintEventArgs e)
{
e.Graphics.DrawImage(squareImage, pos_x, pos_y, 50, 50);
}
squareImage is an attribute corresponding to a Drawing.Image. pos_x and pos_y are custom int32 attributes.
squareImage 是一个与 Drawing.Image 对应的属性。pos_x 和 pos_y 是自定义的 int32 属性。
What i'd like is to SEE the image while running my application...
我想要的是在运行我的应用程序时查看图像...
采纳答案by Mark Hall
Since the PictureBox that you are using is a Winforms Control you will need to add a WindowsFormsHost Controlto your Wpf Form and add the PictureBox to that. Any time you dynamically create a control you need to add it to the Form or Container object otherwise it will not be shown.
由于您使用的 PictureBox 是 Winforms 控件，因此您需要将WindowsFormsHost 控件添加到您的 Wpf 表单并将 PictureBox 添加到其中。任何时候动态创建控件时都需要将其添加到 Form 或 Container 对象，否则将不会显示。
i.e. something like this.
即这样的事情。
MainWindow.xaml
主窗口.xaml
<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="350" Width="525">
<Grid>
<WindowsFormsHost Height="175" HorizontalAlignment="Left" Margin="10,10,0,0" Name="windowsFormsHost1" VerticalAlignment="Top" Width="255" />
</Grid>
</Window>
MainWindow.xaml.cs
主窗口.xaml.cs
namespace WpfApplication1
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
System.Windows.Forms.PictureBox picturebox1 = new System.Windows.Forms.PictureBox();
windowsFormsHost1.Child = picturebox1;
picturebox1.Paint += new System.Windows.Forms.PaintEventHandler(picturebox1_Paint);
}
void picturebox1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(@"C:\Temp\test.jpg");
System.Drawing.Point ulPoint = new System.Drawing.Point(0, 0);
e.Graphics.DrawImage(bmp,ulPoint);
}
}
}
