TreeListHitInfo Class

Represents a class that contains information about what is located at a specific point within the TreeList control.

Namespace: DevExpress.XtraTreeList

Assembly: DevExpress.XtraTreeList.v18.1.dll

Declaration

C#

public class TreeListHitInfo

VB.NET

Public Class TreeListHitInfo

Related API Members

The following members accept/return TreeListHitInfo objects:

• TreeList.CalcHitInfo(Point)

Remarks

These class members can be used to provide a user with information about a specific point of the TreeList control. The TreeList.CalcHitInfo method of the TreeList object returns a TreeListHitInfo class instance containing information about a specific point of the TreeList control.

Example

The code below obtains the name of the element located under the mouse pointer. The MouseMove event is handled to track mouse pointer movement.

C#

using DevExpress.XtraTreeList;
//...
private void treeList1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e) {
   TreeListHitInfo hi = treeList1.CalcHitInfo(new Point(e.X, e.Y));
   string elementName = hi.HitInfoType.ToString();
   //...
}

VB.NET

Imports DevExpress.XtraTreeList
'...
Private Sub TreeList1_MouseMove(ByVal sender As Object, _
ByVal e As System.Windows.Forms.MouseEventArgs) _
Handles TreeList1.MouseMove
   Dim hi As TreeListHitInfo = TreeList1.CalcHitInfo(New Point(e.X, e.Y))
   Dim ElementName As String = hi.HitInfoType.ToString()
   ' ...
End Sub

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the TreeListHitInfo class.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-implement-block-selection-for-treelist-cells-e2176/CS/BlockSelection/BlockSelector.cs#L58

{
    TreeListHitInfo hInfo = fList.CalcHitInfo(e.Location);
    if (hInfo.HitInfoType == HitInfoType.RowIndicator)

how-to-show-an-image-for-a-hot-tracked-node-on-mouse-move-e3564/CS/TreeListDrawImage/DrawHelper.cs#L65

Point pt = tree.PointToClient(Control.MousePosition);
var hitInfo = tree.CalcHitInfo(pt);
if (hitInfo.HitInfoType == HitInfoType.RowIndicator)

how-to-highlight-a-target-node-during-the-drag-drop-operation-e2074/CS/WindowsApplication1/DnDHighlightHelper.cs#L76

Point p = treeList.PointToClient(new Point(e.X, e.Y));
TreeListHitInfo hitInfo = SelectedTreeList.CalcHitInfo(p);
if (hitInfo.Node == null)

implement-the-addnewnode-method-in-treelist-like-the-addnewrow-one-in-gridcontrol-e4190/CS/WindowsFormsApplication1/MyTreeList.cs#L53

protected override void OnMouseDown(MouseEventArgs e) {
    TreeListHitInfo info = this.CalcHitInfo(e.Location);
    if (info.HitInfoType == HitInfoType.Cell) {

how-to-use-a-custom-usercontrol-as-a-tooltip-e4533/CS/ToolTipControllerExample/Form1.cs#L26

TreeList tree = (TreeList)e.SelectedControl;
TreeListHitInfo hit = tree.CalcHitInfo(e.ControlMousePosition);
if(hit.HitInfoType == HitInfoType.Cell && hit.HitInfoType != HitInfoType.Empty) {

VB.NET

how-to-implement-block-selection-for-treelist-cells-e2176/VB/BlockSelection/BlockSelector.vb#L63

If e.Button = MouseButtons.Left Then
    Dim hInfo As TreeListHitInfo = fList.CalcHitInfo(e.Location)
    If hInfo.HitInfoType = HitInfoType.RowIndicator Then

how-to-implement-the-cells-multi-selection-feature-in-treelist-e2795/VB/WindowsApplication1/Helper/BlockSelector.vb#L54

Private Sub fList_PopupMenuShowing(ByVal sender As Object, ByVal e As PopupMenuShowingEventArgs)
    Dim hi As TreeListHitInfo = fList.CalcHitInfo(e.Point)
    If hi.HitInfoType = HitInfoType.Cell Then

how-to-highlight-a-target-node-during-the-drag-drop-operation-e2074/VB/WindowsApplication1/DnDHighlightHelper.vb#L81

Dim p As Point = treeList.PointToClient(New Point(e.X, e.Y))
Dim hitInfo As TreeListHitInfo = SelectedTreeList.CalcHitInfo(p)
If hitInfo.Node Is Nothing Then

implement-the-addnewnode-method-in-treelist-like-the-addnewrow-one-in-gridcontrol-e4190/VB/WindowsFormsApplication1/MyTreeList.vb#L55

Protected Overrides Sub OnMouseDown(ByVal e As MouseEventArgs)
    Dim info As TreeListHitInfo = Me.CalcHitInfo(e.Location)
    If info.HitInfoType = HitInfoType.Cell Then

how-to-use-a-custom-usercontrol-as-a-tooltip-e4533/VB/ToolTipControllerExample/Form1.vb#L28

Dim tree As TreeList = CType(e.SelectedControl, TreeList)
Dim hit As TreeListHitInfo = tree.CalcHitInfo(e.ControlMousePosition)
If hit.HitInfoType = HitInfoType.Cell AndAlso hit.HitInfoType <> HitInfoType.Empty Then

Inheritance

Object

TreeListHitInfo