ListViewItemSelectionChangedEventArgs ListViewItemSelectionChangedEventArgs ListViewItemSelectionChangedEventArgs ListViewItemSelectionChangedEventArgs Class

定义

ItemSelectionChanged 事件提供数据。Provides data for the ItemSelectionChanged event.

public ref class ListViewItemSelectionChangedEventArgs : EventArgs
public class ListViewItemSelectionChangedEventArgs : EventArgs
type ListViewItemSelectionChangedEventArgs = class
    inherit EventArgs
Public Class ListViewItemSelectionChangedEventArgs
Inherits EventArgs
继承
ListViewItemSelectionChangedEventArgsListViewItemSelectionChangedEventArgsListViewItemSelectionChangedEventArgsListViewItemSelectionChangedEventArgs

示例

下面的代码示例演示如何使用此类型。The following code example demonstrates the use of this type. 在示例中,事件处理程序报告的匹配项ItemSelectionChanged事件。In the example, an event handler reports on the occurrence of the ItemSelectionChanged event. 此报告可帮助您了解事件发生的并可以帮助您进行调试。This report helps you to learn when the event occurs and can assist you in debugging. 若要报告或频繁发生的事件上多个事件,请考虑更换ShowConsole.WriteLine或将消息附加到多行TextBoxTo report on multiple events or on events that occur frequently, consider replacing Show with Console.WriteLine or appending the message to a multiline TextBox.

若要运行此代码示例,请将其粘贴到包含类型的实例的项目ListView名为ListView1To run the example code, paste it into a project that contains an instance of type ListView named ListView1. 然后,确保事件处理程序相关联ItemSelectionChanged事件。Then ensure that the event handler is associated with the ItemSelectionChanged event.

private void ListView1_ItemSelectionChanged(Object sender, ListViewItemSelectionChangedEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "IsSelected", e.IsSelected );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Item", e.Item );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "ItemIndex", e.ItemIndex );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "ItemSelectionChanged Event" );
}
Private Sub ListView1_ItemSelectionChanged(sender as Object, e as ListViewItemSelectionChangedEventArgs) _ 
     Handles ListView1.ItemSelectionChanged

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "IsSelected", e.IsSelected)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Item", e.Item)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "ItemIndex", e.ItemIndex)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"ItemSelectionChanged Event")

End Sub

注解

ItemSelectionChanged事件发生时的选择状态ListViewItem中的更改选择为已取消选择或取消选择为所选。The ItemSelectionChanged event occurs when the selection state of a ListViewItem changes from selected to deselected or deselected to selected. ItemSelectionChanged将不会出现ListView处于虚拟模式。The ItemSelectionChanged will not occur if the ListView is in virtual mode.

构造函数

ListViewItemSelectionChangedEventArgs(ListViewItem, Int32, Boolean) ListViewItemSelectionChangedEventArgs(ListViewItem, Int32, Boolean) ListViewItemSelectionChangedEventArgs(ListViewItem, Int32, Boolean) ListViewItemSelectionChangedEventArgs(ListViewItem, Int32, Boolean)

初始化 ListViewItemSelectionChangedEventArgs 类的新实例。Initializes a new instance of the ListViewItemSelectionChangedEventArgs class.

属性

IsSelected IsSelected IsSelected IsSelected

获取一个值,该值指示项的状态已更改为选定。Gets a value indicating whether the item's state has changed to selected.

Item Item Item Item

获取更改了选择状态的项。Gets the item whose selection state has changed.

ItemIndex ItemIndex ItemIndex ItemIndex

获取更改了选择状态的项的索引。Gets the index of the item whose selection state has changed.

方法

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

确定指定的对象是否等于当前对象。Determines whether the specified object is equal to the current object.

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

作为默认哈希函数。Serves as the default hash function.

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

获取当前实例的 TypeGets the Type of the current instance.

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

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

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

返回表示当前对象的字符串。Returns a string that represents the current object.

(Inherited from Object)

适用于