public bool Satisfies(string filterValue, IncrementalFilteringMode filteringMode)
{
switch (filteringMode)
{
case IncrementalFilteringMode.StartsWith:
return(FilterKey.StartsWith(filterValue));
case IncrementalFilteringMode.Contains:
return(FilterKey.Contains(filterValue));
default:
return(true);
}
}
private void Filter(string actualFilterValue, IncrementalFilteringMode filteringMode)
{
CurrentFilter = actualFilterValue;
var baseDataFiltered = BaseData.Value;
if (actualFilterValue.IsNotEmpty())
{
var filterValue = actualFilterValue.ToLower();
baseDataFiltered = baseDataFiltered.Where(x => x.Satisfies(filterValue, filteringMode)).ToList();
}
ActualData = baseDataFiltered;
}
public void ApplyFilter(string actualFilterValue, IncrementalFilteringMode filteringMode, int beginIndex, int endIndex)
{
Filter(actualFilterValue, filteringMode);
Sort();
TruncateToBorders(beginIndex, endIndex);
if (beginIndex == 0 && ActualData.IsEmpty())
{
var correctFilterValue = FindCorrectFilter(NextFilterValue(actualFilterValue), filteringMode);
Filter(correctFilterValue, filteringMode);
Sort();
TruncateToBorders(0, endIndex - beginIndex);
}
ActualDataSource = ActualData.ToSource().ToList();
}
private string FindCorrectFilter(string possibleFilterValue, IncrementalFilteringMode filteringMode)
{
if (possibleFilterValue.IsEmpty())
{
return(null);
}
var filterValue = possibleFilterValue.ToLower();
if (BaseData.Value.Any(x => x.Satisfies(filterValue, filteringMode)))
{
return(possibleFilterValue);
}
return(FindCorrectFilter(NextFilterValue(possibleFilterValue), filteringMode));
}
