添加一个类库MessageBoxTimeOut
public class MessageBoxTimeOut
{
private string _caption; public void Show(string text, string caption)
{
Show(, text, caption);
}
public void Show(int timeout, string text, string caption)
{
Show(timeout, text, caption, MessageBoxButtons.OK, MessageBoxIcon.Information);
}
public void Show(int timeout, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon)
{
this._caption = caption;
StartTimer(timeout);
MessageBox.Show(text, caption, buttons, icon);
}
private void StartTimer(int interval)
{
System.Windows.Forms.Timer timer = new System.Windows.Forms.Timer();
timer.Interval = interval;
timer.Tick += new EventHandler(Timer_Tick);
timer.Enabled = true;
}
private void Timer_Tick(object sender, EventArgs e)
{
KillMessageBox();
//停止计时器
((System.Windows.Forms.Timer)sender).Enabled = false;
}
[DllImport("User32.dll", EntryPoint = "FindWindow", CharSet = CharSet.Auto)]
private extern static IntPtr FindWindow(string lpClassName, string lpWindowName);
[DllImport("User32.dll", CharSet = CharSet.Auto)]
public static extern int PostMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
public const int WM_CLOSE = 0x10;
private void KillMessageBox()
{
//查找MessageBox的弹出窗口,注意对应标题
IntPtr ptr = FindWindow(null, this._caption);
if (ptr != IntPtr.Zero)
{
//查找到窗口则关闭
PostMessage(ptr, WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
}
}
}
调用
MessageBoxTimeOut mb = new MessageBoxTimeOut();
mb.Show("产品编码不存在!", "提示(窗体3秒后自动关闭...)");