ObjectListView: Custom Sorter
- by Mike
In the control ObjectListView(http://objectlistview.sourceforge.net/html/cookbook.htm), I'm trying to add a custom sorter where it ignores "The" and "A" prefixes.
I managed to do it with a regular ListView, but now that I switched to ObjectListView(a lot more features, and ease), I can't seem to do the same.
The following is the Main comparer in the ObjectListView code i think...
public int Compare(object x, object y)
{
return this.Compare((OLVListItem)x, (OLVListItem)y);
}
Original Sorter for ascending, as an example (Ignoring "A" and "The")
public class CustomSortAsc : IComparer
{
int IComparer.Compare(Object x, Object y)
{
string[] px = Convert.ToString(x).Split(' ');
string[] py = Convert.ToString(y).Split(' ');
string newX = "";
string newY = "";
for (int i = 0; i < px.Length; i++)
{
px[i] = px[i].Replace("{", "");
px[i] = px[i].Replace("}", "");
}
for (int i = 0; i < py.Length; i++)
{
py[i] = py[i].Replace("{", "");
py[i] = py[i].Replace("}", "");
}
if ((px[1].ToLower() == "a") || (px[1].ToLower() == "the"))
{
if (px.Length > 1)
{
for (int i = 2; i < px.Length; i++)
newX += px[i];
}
}
else
{
for (int i = 1; i < px.Length; i++)
newX += px[i];
}
if ((py[1].ToLower() == "a") || (py[1].ToLower() == "the"))
{
if (py.Length > 1)
{
for (int i = 2; i < py.Length; i++)
newY += py[i];
}
}
else
{
for (int i = 1; i < py.Length; i++)
newY += py[i];
}
return ((new CaseInsensitiveComparer()).Compare(newX, newY));
}
