[英]Copying With Progress Bar not working
I kinda have a problem. 我有点小问题。 I'm trying to make a form that copies stuff from point A to B with a statusbar. 我正在尝试使用状态栏将表单的内容从A点复制到B的表单。 Now the copying works fine but the statusbar just isn't doing anything.. Anyone got any clue? 现在复制可以正常工作,但是状态栏什么也没做。任何人都有线索吗?
public partial class Form4A : Form
{
public Form4A()
{
InitializeComponent();
OtherSettings();
BackgroundWorker.RunWorkerAsync(); // Starts wow copying
}
private void BackgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
string SourcePath = RegistryRead.ReadOriginalPath();
string DestinationPath = RegistryRead.ReadNewPath();
if (!Directory.Exists(SourcePath))
{
for (int i = 1; i <= 100; i++)
{
//Now Create all of the directories
foreach (string dirPath in Directory.GetDirectories(SourcePath, "*",
SearchOption.AllDirectories))
Directory.CreateDirectory(dirPath.Replace(SourcePath, DestinationPath));
//Copy all the files
foreach (string newPath in Directory.GetFiles(SourcePath, "*.*",
SearchOption.AllDirectories))
File.Copy(newPath, newPath.Replace(SourcePath, DestinationPath));
BackgroundWorker.ReportProgress(i);
}
}
}
private void backgroundWorker_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
// Change the value of the ProgressBar to the BackgroundWorker progress.
progressBar1.Value = e.ProgressPercentage;
// Set the text.
this.Text = e.ProgressPercentage.ToString();
}
}
You say: if (!Directory.Exists(DestinationPath))
. 您说: if (!Directory.Exists(DestinationPath))
。 This means that the loop will never be executed, if the desination path exists. 这意味着,如果存在目标路径,则将永远不会执行循环。 Make sure you delete the DestinationPath before you test your code! 在测试代码之前,请确保删除DestinationPath!
EDIT: 编辑:
if (Directory.Exists(SourcePath)) {
//Now Create all of the directories
string[] allDirectories = Directory.GetDirectories(SourcePath, "*", SearchOption.AllDirectories);
string[] allFiles = Directory.GetFiles(SourcePath, "*.*", SearchOption.AllDirectories);
int numberOfItems = allDirectories.Length + allFiles.Length;
int progress = 0;
foreach (string dirPath in allDirectories) {
Directory.CreateDirectory(dirPath.Replace(SourcePath, DestinationPath));
progress++;
BackgroundWorker.ReportProgress(100 * progress / numberOfItems);
}
//Copy all the files
foreach (string newPath in allFiles) {
File.Copy(newPath, newPath.Replace(SourcePath, DestinationPath));
progress++;
BackgroundWorker.ReportProgress(100 * progress / numberOfItems);
}
}
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