如何使光标转向等待光标？ [英] How can I make the cursor turn to the wait cursor?

问题描述

我有一个C＃应用程序，有用户登录到它，并且因为散列算法是昂贵的，需要一点时间做。如何显示等待/忙光标（通常是沙漏）给用户，让他们知道程序正在做什么？

项目在C＃ p>

解决方案

您可以使用 Cursor.Current 。

  //将游标设置为沙漏
 Cursor.Current = Cursors.WaitCursor; 
 
 //在这里执行你的时间密集型哈希代码... 
 
 //将游标设置为默认箭头
 Cursor.Current = Cursors.Default;但是，如果散列操作是真的长度（MSDN将其定义为 超过2-7秒），您应该使用光标以外的视觉反馈指示器来通知用户进度。有关更深入的指南集，请参见本文。
 
 
 
 编辑：
 
正如@Am指出，您可能需要拨打 Application.DoEvents（）; 之后 Cursor.Current = Cursors.WaitCursor; ，以确保沙漏实际显示。 
 
I have a C# application that has users login to it, and because the hashing algorithm is expensive, it takes a little while to do. How can I display the Wait/Busy Cursor (usually the hourglass) to the user to let them know the program is doing something?

The project is in C#.
解决方案
You can use Cursor.Current.
// Set cursor as hourglass
Cursor.Current = Cursors.WaitCursor;

// Execute your time-intensive hashing code here...

// Set cursor as default arrow
Cursor.Current = Cursors.Default;
However, if the hashing operation is really lengthy (MSDN defines this as more than 2-7 seconds), you should probably use a visual feedback indicator other than the cursor to notify the user of the progress. For a more in-depth set of guidelines, see this article.

Edit:

As @Am pointed out, you may need to call Application.DoEvents(); after Cursor.Current = Cursors.WaitCursor; to ensure that the hourglass is actually displayed. 

                        
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