进度条不递增 [英] Progress Bar not incrementing

问题描述

我有以下的code的读取文件，也增加TE进度条读它，但我没有看到任何活动我的进度。任何人都可以请帮我，为什么？

  progressBar1.Minimum = 0;
progressBar1.Maximum =（int）的fileStream.Length + 1;
progressBar1.Value = 0;

使用（FILESTREAM）
{
    fileStreamLength =（int）的fileStream.Length + 1;
    fileInBytes =新的字节[fileStreamLength]
    INT currbyte = 0，I = 0;
    变种一个= 0;
    而（currbyte！= -1）
    {
        currbyte = fileStream.ReadByte（）;
        fileInBytes [我++] =（字节）currbyte;
        progressBar1.Value =我;

    }

 }
 

解决方案

据递增，但你不能看到它。它是通过在UI线程中运行你的循环引起的。 寻找BackgroundWorker的或异步/待机模式。

I have the following code which read a file and also increment te progress bar while reading it, but i dont see any activity in my progressBar. can anyone please help me why?

progressBar1.Minimum = 0;
progressBar1.Maximum = (int)fileStream.Length + 1;
progressBar1.Value = 0;

using (fileStream)
{
    fileStreamLength = (int)fileStream.Length + 1;
    fileInBytes = new byte[fileStreamLength];
    int currbyte = 0, i = 0;
    var a = 0;
    while (currbyte != -1)
    {
        currbyte = fileStream.ReadByte();
        fileInBytes[i++] = (byte)currbyte;
        progressBar1.Value=i;

    }

 }

解决方案

It is incrementing but you cannot see it. It is caused by running your loop in UI thread. Look for BackGroundWorker or async/await pattern.

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