protected override void OnKeyPress(KeyPressEventArgs e)
{
base.OnKeyPress(e);
char ch = Convert.ToChar(13); // Enter\Action
char chBack; // = Convert.ToChar(27); //Back key
// Do nothing if the action key is pressed
if (e.KeyChar == ch)
{
return;
}
// handle AutoNumbering
if (autoNumbering)
{
//try to find the item
int pressedKey = Convert.ToInt32(e.KeyChar.ToString());
this.SelectedIndex = pressedKey - 1;
return;
}
string strLet = String.Empty;
//letters from the pressed key
if (!fullKeyboard)
{
chBack = Convert.ToChar(27);
strLet = (string)numToLetter[e.KeyChar];
}
else
{
chBack = (char)Keys.Back;
strLet = e.KeyChar.ToString();
}
if (savedItems.Count == 0)
{
savedItems = this.Items.CloneItems();
}
string strSearch = "";
// Initialize helper arrays
ArrayList tempArrSearch = (ArrayList)arrSearch.Clone();
ItemCollection filterItems = this.Items.CloneItems();
bTempCleaned = false;
#region Back key
if (e.KeyChar == chBack) //back key
{
if (searchBuffer.Count == 0)
{
return;
}
else
{
e.Handled = true;
}
arrSearch.Clear();
this.BeginUpdate();
OnFilteringStarted(null);
if (searchBuffer.Count > 1)
{
ArrayList tmpSearch = (ArrayList)searchBuffer[searchBuffer.Count - 2];
for (int n = 0; n < tmpSearch.Count; n++)
{
strSearch = (string)tmpSearch[n];
if (strSearch.Length >= 1)
{
if (FilterItems(strSearch, savedItems))
{
arrSearch.Add(strSearch);
}
}
}
searchBuffer.RemoveAt(searchBuffer.Count - 1);
}
else
{
searchBuffer.Clear();
PopulateItems(savedItems, 0);
tempItems.Clear();
}
OnFilteringComplete(null);
if (tempItems.Count > 0)
{
PopulateItems(tempItems, strSearch.Length);
}
itemsMatched = tempItems.Count;
this.EndUpdate();
this.EnsureVisible(0);
return;
}
#endregion
if (strLet == null)
{
return;
}
this.BeginUpdate();
arrSearch.Clear();
OnFilteringStarted(null);
tempItems = ItemSearch(strLet, tempArrSearch);
OnFilteringComplete(null);
if (arrSearch.Count > 0)
{
searchBuffer.Add(arrSearch.Clone());
}
else
{
//itemsMatched = 0;
// string nomatch = "No matches:";
// this.Items.Clear();
// this.selected = 0;
// this.Items.Add(new SmartListItem(nomatch));
// this.Invalidate();
// return;
//tempItems.Clear();
//tempItems.Add("No matches:");
}
if (tempItems.Count > 0)
{
PopulateItems(tempItems, searchBuffer.Count);
}
itemsMatched = tempItems.Count;
this.EndUpdate();
this.EnsureVisible(0);
}
