如果IDisposposable，请正确使用 [英] Appropriate use if IDisposable

问题描述

是否需要在下面的代码块中使用IDisposable.我正在使用，并且散列包含从用户获取的文本的SHA1，而inputData是字节数组.我认为第二段代码是正确的.

示例1:

Is there any need to use IDisposable in the block of code below. I am availing of using and hash contains the SHA1 of text taken in from the user and inputData is a byte array. I assume the second block of code is correct.

Example 1:

using (SHA1 hash = SHA1.Create())
{
    txtSHA1.Text = GetBytesToString(hash.ComputeHash(inputData));
    ((IDisposable)hash).Dispose();
}

示例2:

Example 2:

using (SHA1 hash = SHA1.Create())
{
    txtSHA1.Text = GetBytesToString(hash.ComputeHash(inputData));
}

推荐答案

使用第二个选项，如果您能够使用"using"语句意味着该对象是从IDisposable类继承的，则他们已经编写了适当的处理方法事件.

Go with second option, if you are able to use "using" statement means, that object is inherited from IDisposable class, they have written appropriate dispose events.

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