TreeViewHitTestLocations 枚举

定义

定义表示 TreeViewTreeNode 的区域的常量。Defines constants that represent areas of a TreeView or TreeNode.

此枚举有一个 FlagsAttribute 属性,允许按位组合成员值。

public enum class TreeViewHitTestLocations
[System.Flags]
[System.Runtime.InteropServices.ComVisible(true)]
public enum TreeViewHitTestLocations
type TreeViewHitTestLocations = 
Public Enum TreeViewHitTestLocations
继承
TreeViewHitTestLocations
属性

字段

AboveClientArea 256

TreeView 控件的客户端部分之上的位置。A position above the client portion of a TreeView control.

BelowClientArea 512

TreeView 控件的客户端部分之下的位置。A position below the client portion of a TreeView control.

Image 2

TreeViewTreeNode 上包含的图像界限之内的位置。A position within the bounds of an image contained on a TreeView or TreeNode.

Indent 8

TreeNode 的缩进区域中的位置。A position in the indentation area for a TreeNode.

Label 4

TreeNode 的文本部分上的位置。A position on the text portion of a TreeNode.

LeftOfClientArea 2048

TreeView 控件的工作区左侧的位置。A position to the left of the client area of a TreeView control.

None 1

TreeView 控件的工作区中的位置,但不在节点上或节点的某一部分上。A position in the client area of the TreeView control, but not on a node or a portion of a node.

PlusMinus 16

TreeNode 的加/减按钮区域中的位置。A position on the plus/minus area of a TreeNode.

RightOfClientArea 1024

TreeView 控件的工作区右侧的位置。A position to the right of the client area of the TreeView control.

RightOfLabel 32

TreeNode 的文本区域右侧的位置。A position to the right of the text area of a TreeNode.

StateImage 64

TreeNode 的状态图像界限内的位置。A position within the bounds of a state image for a TreeNode.

示例

下面的代码示例演示如何使用TreeViewHitTestLocations枚举。The following code example demonstrates how to use the TreeViewHitTestLocations enumeration. 若要运行此示例, 请将以下代码粘贴到包含TreeView名为treeView1的控件的 Windows 窗体中TreeView , 并填充 with 项。To run this example, paste the following code into a Windows Form that contains a TreeView control named treeView1, and populate the TreeView with items. 在此示例中MouseDown , 请确保HandleMouseDown和窗体的事件与方法相关联。 treeview1Ensure that treeview1 and the MouseDown event for the form are associated with the HandleMouseDown method in this example.

void HandleMouseDown(object sender, MouseEventArgs e)
{
    TreeViewHitTestInfo info = treeView1.HitTest(e.X, e.Y);
    if (info != null)
        MessageBox.Show("Hit the " + info.Location.ToString());
}
Private Sub HandleMouseDown(ByVal sender As Object, ByVal e As MouseEventArgs) _
    Handles Me.MouseDown, treeView1.MouseDown
    Dim info As TreeViewHitTestInfo = treeView1.HitTest(e.X, e.Y)
    If (info IsNot Nothing) Then
        MessageBox.Show("Hit the " + info.Location.ToString())
    End If

End Sub

注解

TreeViewHitTestLocations 枚举由 TreeViewHitTestInfo 类使用。The TreeViewHitTestLocations enumeration is used by the TreeViewHitTestInfo class.

适用于