Moving items in a ListBox

I have a ListBox that has a bunch of items in it. However, I want to be able to sort the items in the list based on a match in the Item.

So if I had some items that looked like this in the ListBox:

U3      IC-00276G   236.135  198.644  90   BGA48     
U12     IC-00270G   250.610  201.594  0    SOP8      
J1      INT-00112G  269.665  179.894  180  SOIC16    
J2      INT-00112G  269.665  198.144  180  SOIC16    
FID2    FIDUCIAL    5.080    24.130   0    FIDUCIAL  
FID1    FIDUCIAL    5.080    189.818  0    FIDUCIAL 
FID3    FIDUCIAL    0        112.231  90   FIDUCIAL 

I want to be able to keep everything the same unless the item contains "FID". At which point I want to add them to the top of the ListBox and in numeric order.. so in other words the NEW ListBox would look like this:

FID1    FIDUCIAL    5.080    189.818  0    FIDUCIAL 
FID2    FIDUCIAL    5.080    24.130   0    FIDUCIAL 
FID3    FIDUCIAL    0        112.231  90   FIDUCIAL 
U3      IC-00276G   236.135  198.644  90   BGA48     
U12     IC-00270G   250.610  201.594  0    SOP8      
J1      INT-00112G  269.665  179.894  180  SOIC16    
J2      INT-00112G  269.665  198.144  180  SOIC16    

I was going about this using something like this:

if (aListBox.Items.Contains("FID"))
{
    # I don't know what to put in here to make it grab the Item and move it
    # to the top of the List and also numerically ordering them.
}

- Can anyone help with this?

Thanks in advance :)

EDIT:

foreach (var item in listOneLines)
    if (item.Contains("FID "))
        ListBox.Items.Add(item);
foreach (var item in listOneLines)
    if (item.Contains("FID0"))
        ListBox.Items.Add(item);
foreach (var item in listOneLines)
    if (item.Contains("FID1"))
        ListBox.Items.Add(item);
foreach (var item in listOneLines)
    if (item.Contains("FID2"))
        ListBox.Items.Add(item);
foreach (var item in listOneLines)
    if (item.Contains("FID3"))
        ListBox.Items.Add(item);
foreach (string item in listOneLines)
    if (!item.Contains("FID"))
        ListBox.Items.Add(item);

and the new ListBox loops like this:

FID1    FIDUCIAL    5.开发者_开发技巧080    189.818  0    FIDUCIAL 
FID2    FIDUCIAL    5.080    24.130   0    FIDUCIAL 
FID3    FIDUCIAL    0        112.231  90   FIDUCIAL 
U3      IC-00276G   236.135  198.644  90   BGA48     
U12     IC-00270G   250.610  201.594  0    SOP8      
J1      INT-00112G  269.665  179.894  180  SOIC16    
J2      INT-00112G  269.665  198.144  180  SOIC16    
FID2    FIDUCIAL    5.080    24.130   0    FIDUCIAL    #From here down is what
FID1    FIDUCIAL    5.080    189.818  0    FIDUCIAL    #I want to be removed.
FID3    FIDUCIAL    0        112.231  90   FIDUCIAL 

---

You can group or sort the items in many ways as you populate the listBox.
I've given some examples below. They're not necessaarily the most amazing solutions, but I figure that you'll learn more by seeing some of the possibilities than by giving a cryptic or "clever" solution. These also illustrate how you can insert at different locations in the list (as mentioned in the question).

A simple approach to separate the one list into two (unsorted) lists is by adding to the end or inserting at the beginning of the list (not a very efficient approach but often this won't be a relevant problem in UI code unless you have large lists):

foreach (string item in itemList)
{
    if (item.Contains("FID"))
        listbox.Items.Insert(0, item);  // Add at start of list
    else
        listBox.Items.Add(item);        // Add at end of list
}

(Note that the FID items will appear in a reversed order)

Or add the items in two passes:

foreach (string item in itemList)
{
    if (item.Contains("FID"))
        listbox.Items.Add(item)    // Add all items with FID in them
}
foreach (string item in itemList)
{
    if (!item.Contains("FID"))
        listbox.Items.Add(item)    // Add all items without FID in them
}

Or find an insertion location for every item:

foreach (string item in itemList)
{
    int insertPos = 0;
    bool itemIsFID = item.Contains("FID");
    while (insertPos < listBox.Items.Count)
    {
        // Primary sort - put FID items ahead of non-FID items
        bool boxItemIsFID = listBox.Items[insertPos].Contains("FID");
        if (itemIsFID && !boxItemIsFID)
        {
            // The new item must be inserted before the existing item
            break;
        }

        // Secondary sort - alphabetical
        if (item.CompareTo(listBox.Items[insertPos]) > 0)
        {
            // The new item must be inserted before the existing item
            break;
        }
    }

    // Insert the item at the location we've found
    if (insertPos < listBox.Items.Count)
        listBox.Items.Insert(insertPos, item);
    else
        listBox.Items.Add(item);
}

Or finally, you could Pre-sort a collection of the items by implementing your own IComparer and using your collection's Sort method:

itemList.Sort(MyComparer);
foreach (string item in itemList)
    listbox.Items.Add(item);

---

You can implement custom sort using IComparer

See this tutorial as an example or this one

Inside your custom sort method you can easily put your conditions for sorting