public void AddField(DataColumn dc, StatisticFieldType sft)
{
if (dynamicTable[dc.ColumnName] == null ||
dynamicTable[dc.ColumnName].ShowType == ShowType.HIDDEN)
{
return;
}
StatisticField sf = new StatisticField();
sf.Index = dc.Ordinal;
if (sft == StatisticFieldType.AUTO)
{
if (dc.DataType.IsArray || (dc.DataType == typeof(string) && dc.MaxLength > 0x7fff))
{
sf.Type = StatisticFieldType.COUNT;
}
else if (dc.DataType == typeof(string) || dc.DataType == typeof(DateTime) || dc.DataType == typeof(bool))
{
sf.Type = StatisticFieldType.DISTINCTCOUNT;
}
else
{
sf.Type = StatisticFieldType.SUM;
}
}
else
{
sf.Type = sft;
}
Fields.Add(sf);
}
public StatisticField Clone()
{
StatisticField sf = new StatisticField();
sf.Index = Index;
sf.Type = Type;
foreach (DictionaryEntry de in DistinctCount)
{
sf.DistinctCount[de.Key] = de.Value;
}
sf.count = count;
sf.sum = sum;
sf.first = first;
return(sf);
}