// Call FindCaption Method to search for a list view item labeled by the
// string specified as the Value parameter
// Die Methode FindCaption gibt ein Element der Listenansicht mit der
// angegebenen Beschriftung zurück, wenn ein solches existiert.
// Syntax:
function FindCaption(StartIndex: Integer; Value: string;
Partial, Inclusive, Wrap: Boolean): TListItem;
// Example, Beispiel:
procedure TForm1.Button1Click(Sender: TObject);
var
lvItem: TListItem;
begin
lvItem := ListView1.FindCaption(0, // StartIndex: Integer;
'99', // Search string: string;
True, // Partial,
True, // Inclusive
False); // Wrap : boolean;
if lvItem <> nil then
begin
ListView1.Selected := lvItem;
lvItem.MakeVisible(True);
ListView1.SetFocus;
end;
end;
// To search for a list view subitem (also for items), use this function:
// Funktion, um auch Subitems zu durchsuchen:
{
Search for text in a listview item
@Param lv is the listview, supposed to be in vaReport mode
@Param S is the text to search for
@Param column is the column index for the column to search , 0-based
@Returns the found listview item, or Nil if none was found
@Precondition lv nil, lv in report mode if column 0, S not empty
@Desc The search is case-insensitive and will only match on the
complete column content. Use AnsiContainsText instead of AnsiCompareText
to match on a substring in the columns content.
Created 14.10.2001 by P. Below
}
function FindListViewItem(lv: TListView; const S: string; column: Integer): TListItem;
var
i: Integer;
found: Boolean;
begin
Assert(Assigned(lv));
Assert((lv.viewstyle = vsReport) or (column = 0));
Assert(S <> '');
for i := 0 to lv.Items.Count - 1 do
begin
Result := lv.Items[i];
if column = 0 then
found := AnsiCompareText(Result.Caption, S) = 0
else if column > 0 then
found := AnsiCompareText(Result.SubItems[column - 1], S) = 0
else
found := False;
if found then
Exit;
end;
// No hit if we get here
Result := nil;
end;
// Example call:
// Beispielaufruf:
procedure TForm1.Button1Click(Sender: TObject);
var
lvItem: TListItem;
begin
// Search subitem[0] for text from edit1
// in der Spalte subitem[0] den Text aus Edit1 suchen
lvItem := FindListViewItem(ListView1, Edit1.Text, 1);
// if found, then show the item
// falls item gefunden, dann anzeigen
if lvItem <> nil then
begin
ListView1.Selected := lvItem;
lvItem.MakeVisible(True);
ListView1.SetFocus;
end;
end;
// Function to search items and select if found
// Funktion, um Items zu suchen unda falls gefunden, sie danach markieren
procedure LV_FindAndSelectItems(lv: TListView; const S: string; column: Integer);
var
i: Integer;
found: Boolean;
lvItem: TListItem;
begin
Assert(Assigned(lv));
Assert((lv.ViewStyle = vsReport) or (column = 0));
Assert(S <> '');
for i := 0 to lv.Items.Count - 1 do
begin
lvItem := lv.Items[i];
if column = 0 then
found := AnsiCompareText(lvItem.Caption, S) = 0
else if column > 0 then
begin
if lvItem.SubItems.Count >= Column then
found := AnsiCompareText(lvItem.SubItems[column - 1], S) = 0
else
found := False;
end
else
found := False;
if found then
begin
lv.Selected := lvItem;
end;
end;
end;
procedure TForm1.Button1Click(Sender: TObject);
var
lvItem: TListItem;
begin
// in der Spalte subitem[0] den Text aus Edit1 suchen
LV_FindAndSelectItems(ListView1, Edit1.Text, 1);
ListView1.SetFocus;
end;
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