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The tile view lets you balance graphical and textual information by displaying item and subitem text next to large icons. The insertion mark feature lets you provide drag-and-drop item repositioning with visual feedback to indicate drop locations.Use the List View Insertion Mark object retrieved through the property to display the insertion mark.Two Image List objects are also created in the code example to provide images for the List View Item objects.Raises the Invalidated event with a specified region of the control to invalidate.(Inherited from Control.) property to enable the display of items in columns instead of a straight vertical list of items.The former could confuse users when they press keys but nothing happens.It is usually better to show their keypresses but display a warning that the input is currently invalid.

The , Combo Box, or Checked List Box on a base Windows form and want to modify the string collections of those controls in a derived Windows form, the string collections of those controls in the base Windows form must be empty.

If the string collections are not empty, they become read-only when you derive another Windows form.

Do you want to prevent input that isn't allowed or validate the input before it is possible to proceed?

In some cases, you might want to include code that determines whether these features are available, and provide alternate functionality when they are unavailable.

These features are provided by the same library that provides the operating system themes feature.

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