Question

我有一些进度条，它们是在按钮单击的运行时创建的。

private void button1_Click(object sender, EventArgs e)
{
    int count=0; 
    for(var item in items)
    {
        count++;
        ProgressBar pBar = new ProgressBar();
        pBar.Name = "progressBar1_"+count;
        pBar.Width = 200;
        pBar.Height = 15;
        pBar.Minimum = 1;
        pBar.Maximum = 100;
        pBar.Value = 1;
        Panel1.Controls.Add(pBar);

如何访问动态创建的进度条以显示进度？

"progressBar1_"+count.PerformStep();// This doesnt work

Answer 1

每次拨打电话时都在for循环中

ProgressBar pBar = new ProgressBar();

您创建了一个进度条的新实例。

一种选择是在列表或字典中记住这个实例。

类似的东西：

List<string> items = new List<string>() { "item" };

Dictionary<string, ProgressBar> progressBars = new Dictionary<string, ProgressBar>();

private void button1_Click(object sender, EventArgs e)
{
    int count=0; 
    foreach(var item in items)
    {
        count++;
        ProgressBar pBar = new ProgressBar();
        pBar.Name = "progressBar_" + count;
        pBar.Width = 200;
        pBar.Height = 15;
        pBar.Minimum = 1;
        pBar.Maximum = 100;
        pBar.Value = 1;
        panel1.Controls.Add(pBar);

        progressBars.Add(pBar.Name, pBar);
    }
}

private void button2_Click(object sender, EventArgs e)
{
    progressBars["progressBar_1"].PerformStep();
}

第二个选项是在面板的控件中搜索此实例。

List<string> items = new List<string>() { "item" };

private void button1_Click(object sender, EventArgs e)
{
    int count=0; 
    foreach(var item in items)
    {
        count++;
        ProgressBar pBar = new ProgressBar();
        pBar.Name = "progressBar_" + count;
        pBar.Width = 200;
        pBar.Height = 15;
        pBar.Minimum = 1;
        pBar.Maximum = 100;
        pBar.Value = 1;
        panel1.Controls.Add(pBar);

        progressBars.Add(pBar.Name, pBar);
    }
}

private void button3_Click(object sender, EventArgs e)
{
    (panel1.Controls.Find("progressBar_1", false).Single() as ProgressBar).PerformStep();
}

在Windows应用程序中显示动态生成的进度条的进度

1 个答案: