TdxListItems Class

A list item collection.

Declaration

TdxListItems = class(
    TPersistent
)

Remarks

The TdxListItems class members allow you to do the following:

• Add items (Add and Insert).
• Delete items (Delete and Clear).
• Count items (Count).
• Access items (Items and GetItemAtPos).
• Obtain an item’s index in the collection (IndexOf).
• Access the collection’s owner (ListView).
• Manage List View updates (BeginUpdate and EndUpdate).

The List View’s Items property references a TdxListItems object.

Example

The following code checks all items in the List View control:

Delphi

var
  AItem: TdxListItem;
begin
  dxListViewControl1.BeginUpdate;
  for AItem in dxListViewControl1.Items do
    AItem.Checked := True;
  dxListViewControl1.EndUpdate;
end;

Delphi (Alternative)

var
  I: Integer;
  AItem: TdxListItem;
begin
  dxListViewControl1.BeginUpdate;
  for I := 0 to dxListViewControl1.Items.Count - 1 do
    begin
      AItem := dxListViewControl1.Items[I];
      AItem.Checked := True;
    end;
  dxListViewControl1.EndUpdate;
end;

C++

dxListViewControl1->BeginUpdate(); 
for (TdxListItem *AItem : dxListViewControl1->Items)
  AItem->Checked = true;
dxListViewControl1->EndUpdate(); 

C++ (Alternative)

TdxListItem *AItem;
dxListViewControl1->BeginUpdate();
for (int I = 0; I < dxListViewControl1->Items->Count; I++)
{
  AItem = dxListViewControl1->Items->Items[I];
  AItem->Checked = true;
}
dxListViewControl1->EndUpdate();

Note

A List View control shows item checkboxes if the control’s Checkboxes property is set to True.

Inheritance

TObject

TPersistent

TdxListItems