BaseListBoxControl.IndexFromPoint(Point) Method

Returns the index of an item at specified coordinates.

Namespace: DevExpress.XtraEditors

Assembly: DevExpress.XtraEditors.v23.2.dll

NuGet Package: DevExpress.Win.Navigation

Declaration

C#

public int IndexFromPoint(
    Point p
)

VB.NET

Public Function IndexFromPoint(
    p As Point
) As Integer

Parameters

Name	Type	Description
p	Point	A Point structure containing the coordinates used to obtain the item index.

Returns

Type	Description
Int32	An integer value representing the zero-based index of an item at specified coordinates. -1 if no item is found.

Remarks

Use this method to identify the item located at specified coordinates within the control. For example, you can use this method to determine which item within the list is selected when a user right-clicks over the list box control.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the IndexFromPoint(Point) method.

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#

winforms-combobox-show-item-tooltips/CS/WindowsApplication124/Form1.cs#L32

ComboBoxEdit cmb = listBoxControl.OwnerEdit as ComboBoxEdit;
int index = listBoxControl.IndexFromPoint(new Point(e.X, e.Y));
if(index == -1) {

winforms-listbox-show-item-tooltips/CS/WindowsApplication45/Form1.cs#L24

    return;
int index = listBoxControl.IndexFromPoint(e.ControlMousePosition);
if(index != -1) {

how-to-handle-diagramcontrol-events-to-save-diagrams-to-a-database-instead-of-a-file-system-t360920/CS/XtraDiagram.CustomDiagramStorage/DiagramOpenDialog.cs#L30

private void listBoxControl1_MouseDoubleClick(object sender, MouseEventArgs e) {
    var itemIndex = listBoxControl1.IndexFromPoint(e.Location);
    if (itemIndex > -1) {

VB.NET

winforms-combobox-show-item-tooltips/VB/WindowsApplication124/Form1.vb#L31

Dim cmb As ComboBoxEdit = TryCast(listBoxControl.OwnerEdit, ComboBoxEdit)
Dim index As Integer = listBoxControl.IndexFromPoint(New Point(e.X, e.Y))
If index = -1 Then

winforms-listbox-show-item-tooltips/VB/WindowsApplication45/Form1.vb#L21

If listBoxControl Is Nothing Then Return
Dim index As Integer = listBoxControl.IndexFromPoint(e.ControlMousePosition)
If index <> -1 Then

how-to-handle-diagramcontrol-events-to-save-diagrams-to-a-database-instead-of-a-file-system-t360920/VB/XtraDiagram.CustomDiagramStorage/DiagramOpenDialog.vb#L33

Private Sub listBoxControl1_MouseDoubleClick(ByVal sender As Object, ByVal e As MouseEventArgs) Handles listBoxControl1.MouseDoubleClick
    Dim itemIndex = listBoxControl1.IndexFromPoint(e.Location)
    If itemIndex > -1 Then