Reputation: 1864
I am working on a windows application using c#.
I have a form and a class having all methods .
I have a method in class in which i am processing some files in arraylist. I want to invoke progress bar method for this file processing but its not working.
Any help
PFB my code snippet:
public void TraverseSource()
{
string[] allFiles1 = Directory.GetFiles(sourcePath, "*.xml", SearchOption.AllDirectories);
var allFiles = new ArrayList();
var length = allFiles.Count;
foreach (string item in allFiles1)
{
if (!item.Substring(item.Length - 6).Equals("MD.xml"))
{
allFiles.Add(item);
// Here i want to invoke progress bar which is in form
}
}
}
Upvotes: 2
Views: 16010
Reputation: 42497
You'll want to use a BackgroundWorker component, in which the DoWork
handler contains your actual work (the string[] allFiles1
part and beyond). It'll look something like this:
public void TraverseSource()
{
// create the BackgroundWorker
var worker = new BackgroundWorker
{
WorkerReportsProgress = true
};
// assign a delegate to the DoWork event, which is raised when `RunWorkerAsync` is called. this is where your actual work should be done
worker.DoWork += (sender, args) => {
string[] allFiles1 = Directory.GetFiles(sourcePath, "*.xml", SearchOption.AllDirectories);
var allFiles = new ArrayList();
foreach (var i = 0; i < allFiles1.Length; i++)
{
if (!item.Substring(item.Length - 6).Equals("MD.xml"))
{
allFiles.Add(item);
// notifies the worker that progress has changed
worker.ReportProgress(i/allFiles.Length*100);
}
}
};
// assign a delegate that is raised when `ReportProgress` is called. this delegate is invoked on the original thread, so you can safely update a WinForms control
worker.ProgressChanged += (sender, args) => {
progressBar1.Value = args.ProgressPercentage;
};
// OK, now actually start doing work
worker.RunWorkerAsync();
}
Upvotes: 9