c# – 似乎无法获得动画的进度条

概述好的,所以我有一个像这样的问题. public Class A{ public A(){ progressBar.Style = ProgressBarStyle.Marquee; progressBar.MarqueeAnimationSpeed = 0; } public void DoSomething(){ 好的,所以我有一个像这样的问题.

public Class A{     public A(){         progressbar.Style = ProgressbarStyle.Marquee;         progressbar.MarqueeAnimationSpeed = 0;         }     public voID DoSomething(){         if(checkpasses){             progressbar.MarqueeAnimationSpeed = 100;             //Do something here...             progressbar.MarqueeAnimationSpeed = 0;         }         else             //Do nothing...         }}

问题是我的进度条根本不会开始移动.首先,我认为它不会自己创建一个新线程(我发现有线)所以我尝试创建一个线程,但仍然是相同的结果.什么都没发生.这是我忘记的事吗？

解决方法 您在此处“执行某些 *** 作”代码将阻止UI线程,因此在DoSomething方法完成之前,您将看不到进度条更新.那时你将动画速度设置回0.

尝试将您的“在这里做一些”代码放在一个单独的线程上.该线程完成后,将动画速度设置回0.

像这样的东西：

public partial class Form1 : Form{    public Form1()    {        InitializeComponent();        backgrounDWorker1.DoWork += new DoWorkEventHandler(backgrounDWorker1_DoWork);        backgrounDWorker1.RunWorkerCompleted += new RunWorkerCompletedEventHandler(backgrounDWorker1_RunWorkerCompleted);    }    private voID backgrounDWorker1_RunWorkerCompleted(object sender,RunWorkerCompletedEventArgs e)    {        progressbar1.MarqueeAnimationSpeed = 0;        progressbar1.Style = ProgressbarStyle.Blocks;        progressbar1.Value = progressbar1.Minimum;    }    private voID backgrounDWorker1_DoWork(object sender,DoWorkEventArgs e)    {        DoSomething();    }    private voID button1_Click(object sender,EventArgs e)    {        progressbar1.Style = ProgressbarStyle.Marquee;        progressbar1.MarqueeAnimationSpeed = 100;        backgrounDWorker1.RunWorkerAsync();    }    private voID DoSomething()    {        Thread.Sleep(2000);    }}

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