private void SettingsChangedMethod(object sender, NotifyCollectionChangedEventArgs e)
{
//different kind of changes that may have occurred in collection
if (e.Action == NotifyCollectionChangedAction.Add)
{
foreach (Setting item in e.NewItems)
{
item.PropertyChanged += Setting_PropertyChanged;
if (item.Scope == Setting.Scopes.DistributionSource.ToString() && item.Key != null)
{
DistributionSourceMap[item.Key] = item.Value;
NotifyPropertyChanged("DistributionSourceMap");
}
if (item.Scope == Setting.Scopes.DistributionTarget.ToString() && item.Key != null)
{
DistributionList.Add(new DistributionItem()
{
Folder = item.Key
});
DistributionTargetMap[item.Key] = item.Value;
NotifyPropertyChanged("DistributionTargetMap");
}
if (item.Scope == Setting.Scopes.DistributionExe.ToString() && item.Key != null)
{
if (!Executables.Contains(item.Value))
{
Executables.Add(item.Value);
}
var distribution = DistributionList.FirstOrDefault(x => x.Folder == item.Key);
if (distribution != null)
{
distribution.Executable = item.Value;
}
}
}
}
if (e.Action == NotifyCollectionChangedAction.Replace)
{
foreach (Setting item in e.OldItems)
{
item.PropertyChanged -= Setting_PropertyChanged;
}
foreach (Setting item in e.NewItems)
{
item.PropertyChanged += Setting_PropertyChanged;
}
}
if (e.Action == NotifyCollectionChangedAction.Remove)
{
foreach (Setting item in e.OldItems)
{
item.PropertyChanged -= Setting_PropertyChanged;
if (item.Scope == Setting.Scopes.DistributionSource.ToString() && item.Key != null)
{
DistributionSourceMap.Remove(item.Key);
}
if (item.Scope == Setting.Scopes.DistributionTarget.ToString() && item.Key != null)
{
DistributionTargetMap.Remove(item.Key);
}
if (item.Scope == Setting.Scopes.DistributionExe.ToString() && item.Key != null)
{
var setting = SettingsList.First(x => (x.Scope == item.Scope && x.Value == item.Value));
if (setting == null && Executables.Contains(item.Value))
{
Executables.Remove(item.Value);
}
var distribution = DistributionList.First(x => x.Folder == item.Key);
if (distribution != null)
{
distribution.Executable = "";
}
}
}
}
if (e.Action == NotifyCollectionChangedAction.Move)
{
//your code
}
}