Unless you set up each column’s width, they will all have the same width. To disable the rearrangement of the columns at runtime, set the control’s AllowColumnReorder property to False (its default value is True). At runtime, the user can rearrange the columns by dragging them with the mouse. The first subitem (Maria Anders in the preceding example) will be displayed under the second header, the second subitem (030-0074321 in the same example) will be displayed under the third header, and so on. Moreover, you can’t specify which subitemwill be displayed under each header. The following columns display the subitems. The first column, with the header Company, displays the items of the list. The ListView control displays only as many subitems as there are columns in the control. You must first create the columns of the Details view, as explained earlier. However, setting the View property to Details is not enough. Subitems are displayed only in Details view mode.
Displaying the subitems on the control requires some overhead. The Add method returns a reference to the newly added item, the LItem variable, which is then used to access the item’s subitems, as shown in the preceding code segment. To access the SubItems collection, you need a reference to the item to which the subitems belong. The following statements add an item and three subitems to the ListView1 control:
To access the subitems of a given item, use its SubItems collection. For example, you can display all items as icons, and when the user clicks an icon, show the values of the selected item’s subitems on other controls. The subitems are displayed only in Details mode, but they are available to your code in any view. You can think of the item as the key of a record, and the subitems as the other fields of the record. The SubItems CollectionĮach item in the ListView control may have one or more subitems. Remove method – Removes an item from the collection. Item property – Retrieves an item specified by an index value.Ĭlear method – Removes all the items from the collection. (LItem) Code language: VB.NET ( vbnet )Ĭount property – Returns the number of items in the collection.
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