从按钮清除图像 [英] Clearing image from button

问题描述

我通过编程将图像分配给按钮很好

I assign an image to a button programmatically which is fine

Stream imgStream = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream("Call_Manager.Resources.Tick.gif");
btnCancel.Image = Bitmap.FromStream(imgStream) as Bitmap;
btnCancel.ImageAlign = ContentAlignment.MiddleRight;

但我无法清除图像.我已经尝试了以下所有方法，但是都没有运气.我做错了什么?

but I am unable to clear the image. I have tried all the following but with no luck. What am I doing wrong?

btnCancel.Image = null;
btnCancel.Image.Invoke();

推荐答案

是

btnCancel.Image.Invoke();

甚至可以编译吗?

没关系.

试试

even compile?

Never mind.

Try

btnCancel.Image.Dispose()
btnCancel.Image = null;
btnCancel.Invalidate();  // OR btnCancel.Refresh();

Stream imgStream = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream("Call_Manager.Resources.Tick.gif");
btnCancel.Image = Bitmap.FromStream(imgStream) as Bitmap;
imgStream.Close(); //Close stream
btnCancel.ImageAlign = ContentAlignment.MiddleRight;

btnCancel.Dispose(); //Dispose image to free all it's resources
btnCancel.Image = null;
btnCancel.Invalidate(); //Causes repaint of control
btnCancel.Image.Invoke();

干杯，


曼弗雷德(Manfred)

Cheers,


Manfred

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