public int AddColumnInfo(ColumnTypeInfo infoColumnType)
{
foreach (ColumnTypeInfo columntypeItem in _listColumInfo)
{
if (columntypeItem.ColumnIndex == infoColumnType.ColumnIndex)
{
columntypeItem.ValueType = infoColumnType.ValueType;
return(_listColumInfo.Count);
}
}
_listColumInfo.Add(infoColumnType);
return(_listColumInfo.Count);
}
int IComparer.Compare(object x, object y)
{
int compResult = 0;
ListViewItem lviX, lviY;
lviX = (ListViewItem)x;
lviY = (ListViewItem)y;
ColumnTypeInfo cti = GetColumnInfo(_sortColumnIndex);
if (_sortOrder == SortOrder.Ascending)
{
if (cti == null)
{
compResult = CompareString(lviX, lviY);
return(compResult);
}
if (cti.ValueType == ColumnType.TypeInteger)
{
compResult = CompareInteger(lviX, lviY);
return(compResult);
}
else if (cti.ValueType == ColumnType.TypeStringLex)
{
compResult = CompareStringLex(lviX, lviY);
return(compResult);
}
else
{
compResult = CompareString(lviX, lviY);
return(compResult);
}
}
else if (_sortOrder == SortOrder.Descending)
{
if (cti == null)
{
compResult = CompareString(lviX, lviY);
return(-compResult);
}
if (cti.ValueType == ColumnType.TypeInteger)
{
compResult = CompareInteger(lviX, lviY);
return(-compResult);
}
else if (cti.ValueType == ColumnType.TypeDateTime)
{
compResult = CompareDateTime(lviX, lviY);
return(-compResult);
}
else if (cti.ValueType == ColumnType.TypeDateTime)
{
compResult = CompareDateTime(lviX, lviY);
return(-compResult);
}
else
{
compResult = CompareString(lviX, lviY);
return(-compResult);
}
}
else
{
return(0);
}
}
