//this method notify all of the observers
protected void OnFinish(object sender)
{
if (Finished != null)
{
DiscoverFinishEventArgs args = new DiscoverFinishEventArgs();
args.DescoverResult = DescoverResult;
Finished(sender, args);
}
}
public override void UpdateDraw(object sender, DiscoverFinishEventArgs e)
{
listView.BeginUpdate();
listView.Items.Clear();
// Get the enumerator to iterate the collection
IDictionaryEnumerator listEnumerator = e.DescoverResult.GetEnumerator();
// Sum all the files size. The total will be used
// to calculate the files size in percent
long totalSize = 0;
while (listEnumerator.MoveNext())
{
totalSize += (long)listEnumerator.Value;
}
// Loop to fill ListView with ListViewItem
ListViewItem listItem;
listEnumerator.Reset();
while (listEnumerator.MoveNext())
{
string itemName = listEnumerator.Key.ToString();
//Console.WriteLine("itemName " + itemName);
listItem = new ListViewItem(itemName);
// Set item icon. This operation needs to be overriden
SetIcon(listItem);
// The file size in kilobytes
string sizeInfo = ((long)listEnumerator.Value / 1024).ToString
("#,##0") + " KB";
listItem.SubItems.Add(sizeInfo);
// Calculate & display the size in percentage
float percent = (totalSize > 0) ?
(long)listEnumerator.Value * 100 / (float)totalSize : 0;
listItem.SubItems.Add(percent.ToString("#,##0.00") + " %");
// Add the ListViewItem to the listView
listView.Items.Add(listItem);
}
listView.EndUpdate();
}
public override void UpdateDraw(object sender, DiscoverFinishEventArgs e)
{
// Draw the chart using the given data
barGraph.Data = e.DescoverResult;
barGraph.Draw();
}
public abstract void UpdateDraw(object sender, DiscoverFinishEventArgs e);
