Tulpep PopupNotifier无法使用Timer

Question

using System;
using System.Data.SQLite;
using System.Drawing;
using System.Timers;
using System.Windows.Forms;
using Tulpep.NotificationWindow;   

public partial class Form1 : Form
{
    System.Timers.Timer timer = null;

    public Form1()
    {
        InitializeComponent();
    }

    private void buttonStart_Click(object sender, EventArgs e)
    {
        if (timer == null)
        {
            timer = new System.Timers.Timer();
            timer.Elapsed += new System.Timers.ElapsedEventHandler(ObjTimer_Elapsed);
            timer.Interval = 10000;
            timer.Start();
        }
    }

    private void ObjTimer_Elapsed(object sender, ElapsedEventArgs e)
    {
        try
        {
            PopupNotifier pop = new PopupNotifier();
            pop.TitleText = "Test";
            pop.ContentText = "Hello World";
            pop.Popup();

          //MessageBox.Show("");      !!!  here is problem  !!!
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
        }
    }
}

在这里,我使用Tulpep通知创建桌面通知.我的表单中有一个开始按钮.单击开始按钮时,计时器开始弹出桌面通知.但只有当我不评论时它才会显示通知 MessageBox.Show("");.如果我删除或评论MessageBox.Show("");它没有显示通知.我调试两种情况,两种情况都没有错误或异常.

有人知道为什么会这样吗？

我在用.net framework 4.5.2,visual studio 2015, windows 8.

Answer 1

PopupNotifier需要从UI-Thread中调用.由于计时器的处理程序在不同的线程中运行,因此您需要调用表单来解决问题.

this.Invoke((MethodInvoker)delegate
{
    PopupNotifier pop = new PopupNotifier();
    pop.TitleText = "Test";
    pop.ContentText = "Hello World";
    pop.Popup();
});