private static void GetNodesFromExpressionTree(QueryFilter queryFilter, Hashtable allowedProperties, List <FilterNode> filterNodes)
{
if (queryFilter != null)
{
CompositeFilter compositeFilter = queryFilter as CompositeFilter;
TextFilter textFilter = queryFilter as TextFilter;
ComparisonFilter comparisonFilter = queryFilter as ComparisonFilter;
ExistsFilter existsFilter = queryFilter as ExistsFilter;
NotFilter notFilter = queryFilter as NotFilter;
if (compositeFilter != null)
{
using (ReadOnlyCollection <QueryFilter> .Enumerator enumerator = compositeFilter.Filters.GetEnumerator())
{
while (enumerator.MoveNext())
{
QueryFilter queryFilter2 = enumerator.Current;
FilterNode.GetNodesFromExpressionTree(queryFilter2, allowedProperties, filterNodes);
}
return;
}
}
if (notFilter != null)
{
textFilter = (notFilter.Filter as TextFilter);
existsFilter = (notFilter.Filter as ExistsFilter);
comparisonFilter = (notFilter.Filter as ComparisonFilter);
if ((textFilter == null && existsFilter == null && comparisonFilter == null) || (comparisonFilter != null && !typeof(bool).IsAssignableFrom(comparisonFilter.Property.Type)))
{
throw new InvalidOperationException(Strings.InvalidNotFilter.ToString());
}
}
if (textFilter != null)
{
FilterNode.GetNodeFromTextFilter(textFilter, allowedProperties, filterNodes, notFilter != null);
return;
}
if (comparisonFilter != null)
{
FilterNode.GetNodeFromComparisonFilter(comparisonFilter, allowedProperties, filterNodes, notFilter != null);
return;
}
if (existsFilter != null)
{
FilterNode.GetNodeFromExistsFilter(existsFilter, allowedProperties, filterNodes, null != notFilter);
return;
}
throw new InvalidOperationException(Strings.UnsuportedFilterType(queryFilter.GetType()).ToString());
}
}
public static List <FilterNode> GetNodesFromSerializedQueryFilter(byte[] serializedQueryFilter, IList <FilterablePropertyDescription> filterableProperties, ObjectSchema schema)
{
List <FilterNode> list = new List <FilterNode>();
if (serializedQueryFilter != null)
{
Hashtable hashtable = new Hashtable(filterableProperties.Count);
foreach (FilterablePropertyDescription filterablePropertyDescription in filterableProperties)
{
hashtable.Add(filterablePropertyDescription.PropertyDefinition.Name, filterablePropertyDescription);
}
FilterNode.GetNodesFromExpressionTree((QueryFilter)WinformsHelper.DeSerialize(serializedQueryFilter), hashtable, list);
}
return(list);
}