internal void RegisterOptionControl(ColumnFilterControl ctrl)
{
if (!Filters.Contains(ctrl))
{
ctrl.PropertyChanged += _filterHandler;
Filters.Add(ctrl);
}
}
internal void UpdateColumnOptionControl(ColumnFilterControl columnFilterControl)
{
//Since visibility for column contrls is set off the ColumnFilterControl by the base grid, we need to
//update the ColumnOptionControl since it is a seperate object.
var ctrl = _optionControls.Where(c => c.FilterColumnInfo != null && columnFilterControl.FilterColumnInfo != null && c.FilterColumnInfo.Column == columnFilterControl.FilterColumnInfo.Column).FirstOrDefault();
if (ctrl != null)
{
ctrl.ResetVisibility();
}
}
void filter_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == "FilterChanged")
{
ColumnFilterControl cf = sender as ColumnFilterControl;
Predicate <object> predicate = null;
if (!IsFilterWindow)
{
if (window != null)
{
predicate = FilterDataViewModel.Instance.FilterPredicate;
window.Close();
}
}
else
{
foreach (var filter in Filters)
{
if (filter.HasPredicate)
{
if (predicate == null)
{
predicate = filter.GeneratePredicate();
}
else
{
predicate = predicate.And(filter.GeneratePredicate());
}
}
if (cf.FilterText == null)
{
if (predicate == null)
{
predicate = filter.GeneratePredicate();
}
else
{
predicate = predicate.And(filter.GeneratePredicate());
}
}
}
}
bool canContinue = true;
var args = new CancelableFilterChangedEventArgs(predicate);
if (BeforeFilterChanged != null && !IsResetting)
{
BeforeFilterChanged(this, args);
canContinue = !args.Cancel;
}
if (canContinue)
{
ListCollectionView view = CollectionViewSource.GetDefaultView(this.ItemsSource) as ListCollectionView;
if (view != null && view.IsEditingItem)
{
view.CommitEdit();
}
if (view != null && view.IsAddingNew)
{
view.CommitNew();
}
if (CollectionView != null)
{
try
{
CollectionView.Filter = predicate;
}
catch
{
}
int count = 1;
ObservableCollection <AllSelectedPropertyChanged> list = new ObservableCollection <AllSelectedPropertyChanged>();
foreach (var item in CollectionView)
{
AllSelectedPropertyChanged selectedModel = item as AllSelectedPropertyChanged;
//selectedModel.Num= count++;
list.Add(selectedModel);
}
foreach (var item in list)
{
if (item == null)
{
continue;
}
item.Num = count++;
}
//if(cf.FilterText!=null&& cf.FilterText.Trim() != "")
//{
if (list != null && list.Count > 0)
{
FilterFinshItemsSource = list;
if (AfterFilterChanged != null)
{
AfterFilterChanged(this, new FilterChangedEventArgs(predicate));
}
}
//}
}
}
else
{
IsResetting = true;
var ctrl = sender as ColumnFilterControl;
ctrl.ResetControl();
IsResetting = false;
}
}
}
