与图片框有关 [英] related to picturebox

问题描述

pictureBox1.Image = Image.FromFile(tbxImageName.Text);

我从上面的代码中获得了图像.
我想关闭与上述代码相关的所有参考.
例如

I get an image from above code.
I want to close all the reference related to the above code.
Ex.

Image foreImage = Image.FromFile(tbxForeImage.Text);
foreImage.Dispose();

如果有人知道，请帮助我.非常感谢您

If anybody knows please help me. Thank You very much

推荐答案

不要像Suresh所建议的那样调用Dispose-此代码未考虑可能的异常.

请执行以下操作:

Don''t call Dispose as Suresh advised — this code does not take into account possible exceptions.

Do this:

(using Image foreImage = Image.FromFile(tbxForeImage.Text)) {
    //use foreImage here
} //foreImage.Dispose() will be called here even it exception is thrown

您应该对实现System.IDisposable的所有临时对象执行此操作.

仅当在声明类的生存期内使用该对象时，才将其分层放置在所有者类的Dispose中.举个好例子，看看System.Windows.Forms.Form.Dispose(不是不是 System.IDisposable.Dispose)和用法示例.

-SA

You should to it to all temporary objects implementing System.IDisposable.

Only if the object is used during the life time of the declaring class, dispose in the Dispose of the owner class, hierarchically. For a good example, look at System.Windows.Forms.Form.Dispose (which is not System.IDisposable.Dispose) and usage samples.

—SA

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

pictureBox1.InitialImage = null;

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

pictureBox1.InitialImage = null;

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