Assembly: System.Windows.Forms (in system.windows.forms.dll)
Public Property AllowColumnReorder As Boolean
Dim instance As ListView Dim value As Boolean value = instance.AllowColumnReorder instance.AllowColumnReorder = value
public bool AllowColumnReorder { get; set; }
public: property bool AllowColumnReorder { bool get (); void set (bool value); }
/** @property */ public boolean get_AllowColumnReorder () /** @property */ public void set_AllowColumnReorder (boolean value)
public function get AllowColumnReorder () : boolean public function set AllowColumnReorder (value : boolean)
Valore proprietà
true se è consentito riordinare le colonne tramite un'operazione di trascinamento; in caso contrario, false. Il valore predefinito è false.L'impostazione del valore della proprietà AllowColumnReorder ha effetto solo se la proprietà View è impostata su Details. È possibile utilizzare questa proprietà per consentire agli utenti di riposizionare le colonne nel controllo in fase di esecuzione. Se la proprietà AllowColumnReorder è impostata su true, gli utenti possono posizionare le colonne nel controllo, in modo da visualizzare l'elemento e i relativi elementi secondari in base alle rispettive esigenze all'interno dell'applicazione.
Nell'esempio di codice riportato di seguito viene creato un controllo ListView con tre oggetti ListViewItem specificati e tre oggetti ListViewItem.ListViewSubItem specificati per ciascun elemento. nonché alcuni oggetti ColumnHeader per la visualizzazione degli elementi secondari nella visualizzazione Dettagli. Nel codice di esempio vengono inoltre creati due oggetti ImageList che forniscono immagini per gli oggetti ListViewItem. Questi oggetti ImageList vengono aggiunti alle proprietà LargeImageList e SmallImageList. Nell'esempio vengono utilizzate le seguenti proprietà per la creazione del controllo ListView:
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View
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AllowColumnReorder
In questo esempio si presuppone che sia stato aggiunto il codice a una classe Form e che sia stato chiamato il metodo creato nell'esempio dal costruttore o un altro metodo nel form. Si presuppone inoltre che le immagini denominate MySmallImage1, MySmallImage2, MyLargeImage1 e MyLargeImage2 siano memorizzate nella directory principale dell'unità C.
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. 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 'CreateMyListView
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. 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: 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. 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.set_Bounds(new Rectangle(new Point(10, 10),
new Size(300, 200)));
// Set the view to show details.
listView1.set_View(View.Details);
// Allow the user to edit item text.
listView1.set_LabelEdit(true);
// Allow the user to rearrange columns.
listView1.set_AllowColumnReorder(true);
// Display check boxes.
listView1.set_CheckBoxes(true);
// Select the item and subitems when selection is made.
listView1.set_FullRowSelect(true);
// Display grid lines.
listView1.set_GridLines(true);
// Sort the items in the list in ascending order.
listView1.set_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.set_Checked(true);
item1.get_SubItems().Add("1");
item1.get_SubItems().Add("2");
item1.get_SubItems().Add("3");
ListViewItem item2 = new ListViewItem("item2", 1);
item2.get_SubItems().Add("4");
item2.get_SubItems().Add("5");
item2.get_SubItems().Add("6");
ListViewItem item3 = new ListViewItem("item3", 0);
// Place a check mark next to the item.
item3.set_Checked(true);
item3.get_SubItems().Add("7");
item3.get_SubItems().Add("8");
item3.get_SubItems().Add("9");
// Create columns for the items and subitems.
listView1.get_Columns().Add("Item Column", -2,
HorizontalAlignment.Left);
listView1.get_Columns().Add("Column 2", -2, HorizontalAlignment.Left);
listView1.get_Columns().Add("Column 3", -2, HorizontalAlignment.Left);
listView1.get_Columns().Add("Column 4", -2, HorizontalAlignment.Center);
//Add the items to the ListView.
listView1.get_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.get_Images().Add(Bitmap.FromFile(
"C:\\MySmallImage1.bmp"));
imageListSmall.get_Images().Add(Bitmap.FromFile(
"C:\\MySmallImage2.bmp"));
imageListLarge.get_Images().Add(Bitmap.FromFile(
"C:\\MyLargeImage1.bmp"));
imageListLarge.get_Images().Add(Bitmap.FromFile(
"C:\\MyLargeImage2.bmp"));
//Assign the ImageList objects to the ListView.
listView1.set_LargeImageList(imageListLarge);
listView1.set_SmallImageList(imageListSmall);
// Add the ListView to the control collection.
this.get_Controls().Add(listView1);
} //CreateMyListView
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile per Pocket PC, Windows Mobile per Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
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