C＃PictureBox删除图片 [英] C# PictureBox remove image

问题描述

我创建了带有标志的游戏。计算机随机选择要找到的四个标志的随机组合。用户点击按钮，点击
标志出现在pictureBox中。当用户点击它时如何删除登录pictureBox并让他再次从按钮中选择标记？ / span>

I have created game with signs.Computer randomly select random combination of four signs to be found.User click button with sign and clicked sign appears in pictureBox.How to make to remove sign in pictureBox when user clicks on it and let him select sign from button again ?

推荐答案

我用sign.Computer随机选择了四个标志的随机组合。用户点击按钮带标志，点击
标志出现在pictureBox中。如何制作用户点击它时删除登录pictureBox并让他再次从按钮中选择签名？

哪种编程语言？

处理点击事件和c＃：

Image iOld = this.pictureBox1.Image;
this.pictureBox1.Image = null;
if(iOld != null)
    iOld.Dispose();

VB：

Dim iOld as Image = Me.PictureBox1.Image
Me.PictureBox1.Image = Nothing
If Not iOld Is Nothing Then
    iOld.Dispose()
End If

假设pictureBox被命名为pictureBox1

assuming the pictureBox is named pictureBox1

问候，

  Thorsten

  Thorsten

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