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ListView.LargeImageList Property

Gets or sets the ImageList to use when displaying items as large icons in the control.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public ImageList LargeImageList { get; set; }

Property Value

Type: System.Windows.Forms.ImageList
An ImageList that contains the icons to use when the View property is set to LargeIcon. The default is null.

The LargeImageList property allows you to specify an ImageList object that contains icons to use when displaying items with large icons (when the View property is set to LargeIcon). The ListView control can accept any graphics format that the ImageList control supports when displaying icons. The ListView control is not limited to .ico files. Once an ImageList is assigned to the LargeImageList property, you can set the ImageIndex property of each ListViewItem in the ListView control to the index position of the appropriate image in the ImageList. The size of the icons for the LargeImageList is specified by the ImageSize.

Because only one index can be specified for the ListViewItem.ImageIndex property, the ImageList objects specified in the LargeImageList and SmallImageList properties should have the same index positions for the images to display. For example, if the ImageIndex property of a ListViewItem is set to 0, the images to use for both small and large icons should be at the same index position in the ImageList objects specified in the LargeImageList and SmallImageList properties.

NoteNote

When the images are specified with keys, you still need to place small and large versions of the image at the same index location in their respective image lists. When switching between views, the index location of the image in one list is used to locate the image in the other list, regardless of the key value specified.

To set the ImageList to use when displaying items with small icons (all view modes other than LargeIcon), use the SmallImageList property. If you want to use images to display item state, use the StateImageList property.

The following code example creates a ListView control with three ListViewItem objects specified and three ListViewItem.ListViewSubItem objects specified for each item. The example also creates ColumnHeader objects to display the subitems in details view. Two ImageList objects are also created in the code example to provide images for the ListViewItem objects. These ImageList objects are added to the LargeImageList and SmallImageList properties. The example uses the following properties in creating the ListView control.

This example requires that you have added the code to a Form and call the method created in the example from the constructor or another method on the form. The example also requires that images named MySmallImage1, MySmallImage2, MyLargeImage1, and MyLargeImage2 are located in the root directory of drive C.

		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);
		}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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