Question

我已经看到了类似的答案，但它不在c＃中，所以我决定提出这个问题。 https://gyazo.com/3ff6efd90fa390cd1f071b693027fcd3到达那一点后，我想要一个弹出的窗口，上面写着＆＃34;已成功加载...＆＃34;。如果有帮助，我设置的定时器间隔为50。这是代码：

private void button1_Click(object sender, EventArgs e)
    {
        this.timer1.Start();
    }

private void progressBar1_Click(object sender, EventArgs e)
    {

    }

private void timer1_Tick(object sender, EventArgs e)
    {
        this.progressBar1.Increment(1);
    }

Answer 1

考虑改变：

private void timer1_Tick(object sender, EventArgs e)
    {
        this.progressBar1.Increment(1);
    }

为：

private void timer1_Tick(object sender, EventArgs e)
{
    var before = this.progressBar1.Value;
    this.progressBar1.Increment(1);
    var after = this.progressBar1.Value;
    if (after > before && after == this.progressBar1.Maximum)
    {
        MessageBox.Show("Successfully loaded...");
    }
}

通过检查值是否更改和表示当前值为Maximum，您知道进度条已完成。

Answer 2

执行某个步骤后，如果Value已达到Maximum，只需检查您的代码：

progressBar.PerformStep();

if (progressBar.Value == progressBar.Maximum)
    MessageBox.Show("Successfully loaded...");

使用BackgroundWorker实例：

BackgroundWorker bgw = new BackgroudWorker();
bgw.DoWork += bgw_DoWork;
bgw.ProgressChanged += bgw_ProgressChanged;
bgw.RunWorkerCompleted += bgw_RunWorkerCompleted;
bgw.WorkerReportsProgress = true;
bgw.RunWorkerAsync();

private void bgw_DoWork(Object sender, DoWorkEventArgs e)
{
    Int32 total = 147;

    for (Int32 i = 0; i < total; ++i)
    {
        Int32 progress = (i * 100) / total;
        bgw.ReportProgress(progress, i);
    }
}

private void bgw_ProgressChanged(Object sender, ProgressChangedEventArgs e)
{
    progressBar.Value = e.ProgressPercentage;
}

private void bgw_RunWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e)
{
    MessageBox.Show("Successfully loaded...");
}

修改

由于问题发生了变化，提供了代码剪切，这里有一个更新的答案（顺便提一下，这反映了我的第一个提案）：

private void timer1_Tick(object sender, EventArgs e) { this.progressBar1.Increment(1); if (this.progressBar1.Value == this.progressBar1.Maximum) { //... MessageBox.Show("Successfully loaded..."); } }

如何在c＃中完成进度条时弹出一个窗口

2 个答案: