protected virtual void OnFilterHasChanged(Object sender, PropertyChangedEventArgs e)
{
if (e != null && e.PropertyName != "AmbethFilterDescriptor")
{
return;
}
IFilterDescriptorProvider[] filterList = providerList.GetExtensions();
if (filterList.Length == 0)
{
AmbethFilterDescriptor = null;
return;
}
AmbethIFilterDescriptor filter = CopyFilterDescriptor(filterList[0].AmbethFilterDescriptor);
for (int i = 1, length = filterList.Length; i < length; i++)
{
filter = FilterDescriptorConverter.Compose(filter, CopyFilterDescriptor(filterList[i].AmbethFilterDescriptor));
}
AmbethFilterDescriptor = filter;
}
protected virtual AmbethIFilterDescriptor CopyFilterDescriptor(AmbethIFilterDescriptor filterToCopy)
{
if (filterToCopy == null)
{
return(null);
}
if (filterToCopy is CompositeFilterDescriptor)
{
var filter = new CompositeFilterDescriptor();
if (filterToCopy.ChildFilterDescriptors != null)
{
filter.ChildFilterDescriptors = new List <AmbethIFilterDescriptor>();
foreach (var child in filterToCopy.ChildFilterDescriptors)
{
filter.ChildFilterDescriptors.Add(CopyFilterDescriptor(child));
}
}
filter.LogicalOperator = filterToCopy.LogicalOperator;
return(filter);
}
else
{
var filter = new FilterDescriptor();
filter.IsCaseSensitive = filterToCopy.IsCaseSensitive;
filter.Member = filterToCopy.Member;
filter.Operator = filterToCopy.Operator;
if (filterToCopy.Value != null)
{
filter.Value = new List <String>();
foreach (var val in filterToCopy.Value)
{
filter.Value.Add(val);
}
}
return(filter);
}
}