protected virtual ListFilterSelectedMode GetGridFilteredValues(
FilterDescriptorCollection descriptorCollection,
ref RadListFilterDistinctValuesTable selectedValuesList,
ref RadListFilterDistinctValuesTable excludedValuesList)
{
ListFilterSelectedMode filterSelectedMode = ListFilterSelectedMode.All;
foreach (FilterDescriptor descriptor in (Collection <FilterDescriptor>)descriptorCollection)
{
if (descriptor is CompositeFilterDescriptor)
{
filterSelectedMode = this.GetGridFilteredValues(((CompositeFilterDescriptor)descriptor).FilterDescriptors, ref selectedValuesList, ref excludedValuesList);
}
else if (descriptor.PropertyName == this.DataColumn.Name)
{
switch (descriptor.Operator)
{
case FilterOperator.None:
case FilterOperator.IsLike:
case FilterOperator.IsNotLike:
case FilterOperator.IsLessThan:
case FilterOperator.IsLessThanOrEqualTo:
case FilterOperator.IsGreaterThanOrEqualTo:
case FilterOperator.IsGreaterThan:
case FilterOperator.StartsWith:
case FilterOperator.EndsWith:
case FilterOperator.Contains:
case FilterOperator.NotContains:
case FilterOperator.IsContainedIn:
case FilterOperator.IsNotContainedIn:
filterSelectedMode = ListFilterSelectedMode.None;
continue;
case FilterOperator.IsEqualTo:
selectedValuesList.Add(descriptor.Value);
filterSelectedMode = ListFilterSelectedMode.Custom;
continue;
case FilterOperator.IsNotEqualTo:
excludedValuesList.Add(descriptor.Value);
filterSelectedMode = ListFilterSelectedMode.Custom;
continue;
case FilterOperator.IsNull:
return(ListFilterSelectedMode.Null);
case FilterOperator.IsNotNull:
return(ListFilterSelectedMode.NotNull);
default:
continue;
}
}
}
return(filterSelectedMode);
}
private void UpdateSelectionMode()
{
if (this.allNode.CheckState == Telerik.WinControls.Enumerations.ToggleState.On && !this.isFiltered)
{
this.selectedMode = ListFilterSelectedMode.All;
}
else if (this.nullNode.CheckState == Telerik.WinControls.Enumerations.ToggleState.On)
{
this.selectedMode = ListFilterSelectedMode.Null;
}
else if (this.nonNullNode.CheckState == Telerik.WinControls.Enumerations.ToggleState.On)
{
this.selectedMode = ListFilterSelectedMode.NotNull;
}
else if (this.selectedValues.Count > 0)
{
this.selectedMode = ListFilterSelectedMode.Custom;
}
else
{
this.selectedMode = ListFilterSelectedMode.None;
}
}
