ListView Construtor
Definição
Importante
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Inicializa uma nova instância da ListView classe.
public:
ListView();public ListView();Public Sub New ()Exemplos
O exemplo de código seguinte cria um ListView controlo com três ListViewItem objetos especificados e três ListViewItem.ListViewSubItem objetos especificados para cada item. O exemplo também cria ColumnHeader objetos para mostrar os subitens na visualização de detalhes. Dois ImageList objetos também são criados no exemplo de código para fornecer imagens para os ListViewItem objetos. Estes ImageList objetos são adicionados às LargeImageList propriedades e.SmallImageList O exemplo utiliza as seguintes propriedades na criação do ListView controlo:
Este exemplo exige que tenha adicionado o código a Form e que chame o método criado no exemplo a partir do construtor ou de outro método no formulário. O exemplo também exige que as imagens nomeadas MySmallImage1, MySmallImage2, MyLargeImage1, e MyLargeImage2 estejam localizadas no diretório raiz da unidade C.
private:
void CreateMyListView()
{
// Create a new ListView control.
ListView^ listView1 = gcnew ListView;
listView1->Bounds = Rectangle(Point(10,10),System::Drawing::Size( 300, 200 ));
// Set the view to show details.
listView1->View = View::Details;
// Allow the user to edit item text.
listView1->LabelEdit = true;
// Allow the user to rearrange columns.
listView1->AllowColumnReorder = true;
// Display check boxes.
listView1->CheckBoxes = true;
// Select the item and subitems when selection is made.
listView1->FullRowSelect = true;
// Display grid lines.
listView1->GridLines = true;
// Sort the items in the list in ascending order.
listView1->Sorting = SortOrder::Ascending;
// Create three items and three sets of subitems for each item.
ListViewItem^ item1 = gcnew ListViewItem( "item1",0 );
// Place a check mark next to the item.
item1->Checked = true;
item1->SubItems->Add( "1" );
item1->SubItems->Add( "2" );
item1->SubItems->Add( "3" );
ListViewItem^ item2 = gcnew ListViewItem( "item2",1 );
item2->SubItems->Add( "4" );
item2->SubItems->Add( "5" );
item2->SubItems->Add( "6" );
ListViewItem^ item3 = gcnew ListViewItem( "item3",0 );
// Place a check mark next to the item.
item3->Checked = true;
item3->SubItems->Add( "7" );
item3->SubItems->Add( "8" );
item3->SubItems->Add( "9" );
// Create columns for the items and subitems.
// Width of -2 indicates auto-size.
listView1->Columns->Add( "Item Column", -2, HorizontalAlignment::Left );
listView1->Columns->Add( "Column 2", -2, HorizontalAlignment::Left );
listView1->Columns->Add( "Column 3", -2, HorizontalAlignment::Left );
listView1->Columns->Add( "Column 4", -2, HorizontalAlignment::Center );
//Add the items to the ListView.
array<ListViewItem^>^temp1 = {item1,item2,item3};
listView1->Items->AddRange( temp1 );
// Create two ImageList objects.
ImageList^ imageListSmall = gcnew ImageList;
ImageList^ imageListLarge = gcnew ImageList;
// Initialize the ImageList objects with bitmaps.
imageListSmall->Images->Add( Bitmap::FromFile( "C:\\MySmallImage1.bmp" ) );
imageListSmall->Images->Add( Bitmap::FromFile( "C:\\MySmallImage2.bmp" ) );
imageListLarge->Images->Add( Bitmap::FromFile( "C:\\MyLargeImage1.bmp" ) );
imageListLarge->Images->Add( Bitmap::FromFile( "C:\\MyLargeImage2.bmp" ) );
//Assign the ImageList objects to the ListView.
listView1->LargeImageList = imageListLarge;
listView1->SmallImageList = imageListSmall;
// Add the ListView to the control collection.
this->Controls->Add( listView1 );
}
private void CreateMyListView()
{
// Create a new ListView control.
ListView listView1 = new ListView();
listView1.Bounds = new Rectangle(new Point(10,10), new Size(300,200));
// Set the view to show details.
listView1.View = View.Details;
// Allow the user to edit item text.
listView1.LabelEdit = true;
// Allow the user to rearrange columns.
listView1.AllowColumnReorder = true;
// Display check boxes.
listView1.CheckBoxes = true;
// Select the item and subitems when selection is made.
listView1.FullRowSelect = true;
// Display grid lines.
listView1.GridLines = true;
// Sort the items in the list in ascending order.
listView1.Sorting = SortOrder.Ascending;
// Create three items and three sets of subitems for each item.
ListViewItem item1 = new ListViewItem("item1",0);
// Place a check mark next to the item.
item1.Checked = true;
item1.SubItems.Add("1");
item1.SubItems.Add("2");
item1.SubItems.Add("3");
ListViewItem item2 = new ListViewItem("item2",1);
item2.SubItems.Add("4");
item2.SubItems.Add("5");
item2.SubItems.Add("6");
ListViewItem item3 = new ListViewItem("item3",0);
// Place a check mark next to the item.
item3.Checked = true;
item3.SubItems.Add("7");
item3.SubItems.Add("8");
item3.SubItems.Add("9");
// Create columns for the items and subitems.
// Width of -2 indicates auto-size.
listView1.Columns.Add("Item Column", -2, HorizontalAlignment.Left);
listView1.Columns.Add("Column 2", -2, HorizontalAlignment.Left);
listView1.Columns.Add("Column 3", -2, HorizontalAlignment.Left);
listView1.Columns.Add("Column 4", -2, HorizontalAlignment.Center);
//Add the items to the ListView.
listView1.Items.AddRange(new ListViewItem[]{item1,item2,item3});
// Create two ImageList objects.
ImageList imageListSmall = new ImageList();
ImageList imageListLarge = new ImageList();
// Initialize the ImageList objects with bitmaps.
imageListSmall.Images.Add(Bitmap.FromFile("C:\\MySmallImage1.bmp"));
imageListSmall.Images.Add(Bitmap.FromFile("C:\\MySmallImage2.bmp"));
imageListLarge.Images.Add(Bitmap.FromFile("C:\\MyLargeImage1.bmp"));
imageListLarge.Images.Add(Bitmap.FromFile("C:\\MyLargeImage2.bmp"));
//Assign the ImageList objects to the ListView.
listView1.LargeImageList = imageListLarge;
listView1.SmallImageList = imageListSmall;
// Add the ListView to the control collection.
this.Controls.Add(listView1);
}
Private Sub CreateMyListView()
' Create a new ListView control.
Dim listView1 As New ListView()
listView1.Bounds = New Rectangle(New Point(10, 10), New Size(300, 200))
' Set the view to show details.
listView1.View = View.Details
' Allow the user to edit item text.
listView1.LabelEdit = True
' Allow the user to rearrange columns.
listView1.AllowColumnReorder = True
' Display check boxes.
listView1.CheckBoxes = True
' Select the item and subitems when selection is made.
listView1.FullRowSelect = True
' Display grid lines.
listView1.GridLines = True
' Sort the items in the list in ascending order.
listView1.Sorting = SortOrder.Ascending
' Create three items and three sets of subitems for each item.
Dim item1 As New ListViewItem("item1", 0)
' Place a check mark next to the item.
item1.Checked = True
item1.SubItems.Add("1")
item1.SubItems.Add("2")
item1.SubItems.Add("3")
Dim item2 As New ListViewItem("item2", 1)
item2.SubItems.Add("4")
item2.SubItems.Add("5")
item2.SubItems.Add("6")
Dim item3 As New ListViewItem("item3", 0)
' Place a check mark next to the item.
item3.Checked = True
item3.SubItems.Add("7")
item3.SubItems.Add("8")
item3.SubItems.Add("9")
' Create columns for the items and subitems.
' Width of -2 indicates auto-size.
listView1.Columns.Add("Item Column", -2, HorizontalAlignment.Left)
listView1.Columns.Add("Column 2", -2, HorizontalAlignment.Left)
listView1.Columns.Add("Column 3", -2, HorizontalAlignment.Left)
listView1.Columns.Add("Column 4", -2, HorizontalAlignment.Center)
'Add the items to the ListView.
listView1.Items.AddRange(New ListViewItem() {item1, item2, item3})
' Create two ImageList objects.
Dim imageListSmall As New ImageList()
Dim imageListLarge As New ImageList()
' Initialize the ImageList objects with bitmaps.
imageListSmall.Images.Add(Bitmap.FromFile("C:\MySmallImage1.bmp"))
imageListSmall.Images.Add(Bitmap.FromFile("C:\MySmallImage2.bmp"))
imageListLarge.Images.Add(Bitmap.FromFile("C:\MyLargeImage1.bmp"))
imageListLarge.Images.Add(Bitmap.FromFile("C:\MyLargeImage2.bmp"))
'Assign the ImageList objects to the ListView.
listView1.LargeImageList = imageListLarge
listView1.SmallImageList = imageListSmall
' Add the ListView to the control collection.
Me.Controls.Add(listView1)
End Sub