CacheVirtualItemsEventArgs CacheVirtualItemsEventArgs CacheVirtualItemsEventArgs CacheVirtualItemsEventArgs Class


Provides data for the CacheVirtualItems event.

public ref class CacheVirtualItemsEventArgs : EventArgs
public class CacheVirtualItemsEventArgs : EventArgs
type CacheVirtualItemsEventArgs = class
    inherit EventArgs
Public Class CacheVirtualItemsEventArgs
Inherits EventArgs


The following code example demonstrates the use of this type. In the example, an event handler reports on the occurrence of the CacheVirtualItems event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing Show with Console.WriteLine or appending the message to a multiline TextBox.

To run the example code, paste it into a project that contains an instance of type ListView named ListView1. Then ensure that the event handler is associated with the CacheVirtualItems event.

private void ListView1_CacheVirtualItems(Object sender, CacheVirtualItemsEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "StartIndex", e.StartIndex );
messageBoxCS.AppendFormat("{0} = {1}", "EndIndex", e.EndIndex );
MessageBox.Show(messageBoxCS.ToString(), "CacheVirtualItems Event" );
Private Sub ListView1_CacheVirtualItems(sender as Object, e as CacheVirtualItemsEventArgs) _ 
     Handles ListView1.CacheVirtualItems

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "StartIndex", e.StartIndex)
    messageBoxVB.AppendFormat("{0} = {1}", "EndIndex", e.EndIndex)
    MessageBox.Show(messageBoxVB.ToString(),"CacheVirtualItems Event")

End Sub


The CacheVirtualItems event occurs when a new area of a ListView in virtual mode is exposed and the ListView determines a new range of items is needed.


CacheVirtualItemsEventArgs(Int32, Int32) CacheVirtualItemsEventArgs(Int32, Int32) CacheVirtualItemsEventArgs(Int32, Int32) CacheVirtualItemsEventArgs(Int32, Int32)

Initializes a new instance of the CacheVirtualItemsEventArgs class with the specified starting and ending indices.


EndIndex EndIndex EndIndex EndIndex

Gets the ending index for the range of values needed by a ListView control in virtual mode.

StartIndex StartIndex StartIndex StartIndex

Gets the starting index for a range of values needed by a ListView control in virtual mode.


Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Returns a string that represents the current object.

(Inherited from Object)

Applies to