Winfrom巧用Using设置鼠标为WaitCursor

本文转载：http://www.cnblogs.com/LoveJenny/archive/2013/03/13/2956922.html

看到try,finally ,有没有让你想到什么呢？，对了using 可以生成try-finally

public class WaitCursor : IDisposable
{
    private Cursor cursor;

    public WaitCursor()
    {
        this.cursor = Cursor.Current;
        Cursor.Current = Cursors.WaitCursor;
    }

    public void Dispose()
    {
        Cursor.Current = cursor;
    }
}

使用的时候，只需要：

private void button1_Click(object sender, EventArgs e)
{
    using(new WaitCursor())
    {
        LongTimeMethod();
    }
}