/// <summary>
/// Modifies a record after it has been generated to provide filter functionality based on System Variables.
/// </summary>
/// <param name="dataset">The dataset.</param>
/// <param name="record">The record.</param>
/// <param name="flag">The flag.</param>
/// <returns></returns>
private static Record PostSystemFilter(ObservableRangeCollection <VariableData> dataset, Record record, SystemVariable.EFlag flag)
{
var pageWhitelist = new List <string>();
foreach (var filter in dataset)
{
var selPage = filter.SelectedPage.Content as string;
var selVal = filter.SelectedValue.Content as string;
if (selVal == VariableData.VALUE_DEFAULT)
{
if (selPage == VariableData.PAGE_EMPTY)
{
pageWhitelist.Clear();
}
else
{
pageWhitelist.Add(selPage);
}
continue;
}
switch (flag)
{
case SystemVariable.EFlag.PAGE_COUNTER_RECORD:
int val = 0;
if (!int.TryParse(selVal, out val))
{
pageWhitelist.Clear();
}
if (record.ElementAtOrDefault(val) != null)
{
pageWhitelist.Add(selPage);
}
break;
case SystemVariable.EFlag.TOTAL_PAGES_RECORD:
if (selVal == record.Count.ToString())
{
pageWhitelist.Add(selPage);
}
break;
}
}
record.RemoveAll((page) => !pageWhitelist.Contains(page.Id));
return(record);
}
private static List <string> PreSystemFilter(ObservableRangeCollection <VariableData> dataset, int recordIndex, SystemVariable.EFlag flag)
{
var pageWhitelist = new List <string>();
foreach (var filter in dataset)
{
var selPage = filter.SelectedPage.Content as string;
var selVal = filter.SelectedValue.Content as string;
if (selVal == VariableData.VALUE_DEFAULT)
{
if (selPage == VariableData.PAGE_EMPTY)
{
pageWhitelist.Clear();
continue;
}
pageWhitelist.Add(selPage);
}
switch (flag)
{
case SystemVariable.EFlag.RECORD_INDEX:
if (selVal == recordIndex.ToString())
{
if (selPage != VariableData.PAGE_EMPTY)
{
pageWhitelist.Add(selPage);
}
}
break;
}
}
return(pageWhitelist);
}
