private async void button1_Click(object sender, EventArgs e)
{
listView1.Items.Clear();
this.ct = new CancellationTokenSource();
string path = Dir.Text;
int numberOfFiles = 1;
if (!Directory.Exists(path))
{
listView1.Items.Add(new ListViewItem {
Text = "Invalid Directory"
});
return;
}
try
{
numberOfFiles = Int32.Parse(NumberOfFIles.Text);
}
catch (Exception)
{
listView1.Items.Clear();
ListViewItem toAdd = new ListViewItem();
toAdd.Text = "Invalid number.";
listView1.Items.Add(toAdd);
return;
}
this.progressTask.Value = 0;
listView1.Items.Add(new ListViewItem {
Text = "Running... "
});
try {
ResultParallel res = await Ex2.processDirAsync(path, numberOfFiles, ct.Token, (progress, totalItems) => { SetValue((Int32)((((float)(int)progress) / (float)(int)totalItems) * 100f)); });
listView1.Items.Clear();
listView1.Items.Add(new ListViewItem {
Text = "Number of files processed " + res.numberOfFiles
});
listView1.Items.AddRange(res.list.ConvertAll <ListViewItem>((item) =>
{
return(new ListViewItem
{
Text = item
});
}).ToArray());
}
catch (OperationCanceledException ex)
{
listView1.Items.Clear();
listView1.Items.Add(new ListViewItem {
Text = "Cancelled...."
});
}
catch (Exception ex)
{
listView1.Items.Clear();
listView1.Items.Add(new ListViewItem {
Text = "Error: " + ex.Message
});
}
finally
{
this.ct.Dispose();
}
}
