请参阅基于IDisposable和"using"的 safe 解决方案:
>沙漏鼠标光标始终会变回其原始图像. [ ^ ].

—SA

Please see my safe solution based on IDisposable and "using":
Hourglass Mouse Cursor Always Changes Back to its Original Image. How?[^].

—SA

在调用昂贵的操作之前，可以通过以下代码设置光标:

Hi,
before calling the expensive operation you can set up the cursor via this code:

this.Cursor = Cursors.WaitCursor;

操作结束后，将其重新设置:

after the operation ends, set it back:

this.Cursor = Cursors.Default;

问候

私有无效button1_Click(对象发送者，EventArgs e)
{
DialogResult dr = MessageBox.Show(使用等待游标"，顶部"，MessageBoxButtons.OKCancel);


如果(dr == DialogResult.OK)
{
光标= Cursors.WaitCursor;

为(int i = 0; i< 1000000000; i ++)
{


}

Cursor = Cursors.Default;
}




}

private void button1_Click(object sender, EventArgs e)
{
DialogResult dr = MessageBox.Show("Use of wait cursor", "Top", MessageBoxButtons.OKCancel);


if (dr==DialogResult.OK)
{
Cursor = Cursors.WaitCursor;

for (int i = 0; i < 1000000000; i++)
{


}

Cursor = Cursors.Default;
}




}