SchedulerHitInfo.HitTest Property

Gets a value identifying the type of the visual element located under the test point.

Namespace: DevExpress.XtraScheduler.Drawing

Assembly: DevExpress.XtraScheduler.v23.2.dll

NuGet Package: DevExpress.Win.Scheduler

Declaration

C#

public SchedulerHitTest HitTest { get; }

VB.NET

Public ReadOnly Property HitTest As SchedulerHitTest

Property Value

Type	Description
SchedulerHitTest	A SchedulerHitTest enumeration value which identifies the type of the visual element that contains the test point.

Available values:

Show 34 items

Name	Description
None	The test point does not belong to any visual element or is outside the scheduler.
Cell	The test point belongs to a time cell.
ResourceHeader	The test point belongs to a resource header.
DayHeader	The test point belongs to a day header.
AllDayArea	The test point belongs to the all-day area.
AppointmentResizingLeftEdge	The test point belongs to the left resizable edge of an appointment.
AppointmentResizingRightEdge	The test point belongs to the right resizable edge of an appointment.
AppointmentResizingTopEdge	The test point belongs to the top resizable edge of an appointment.
AppointmentResizingBottomEdge	The test point belongs to the bottom resizable edge of an appointment.
AppointmentMoveEdge	The test point belongs to the movable edge of an appointment.
AppointmentContent	The test point belongs to contents of an appointment.
MoreButton	The test point belongs to a MoreButton.
DayOfWeekHeader	The test point belongs to a day of week header.
GroupSeparator	The test point belongs to the group separator, which separates one group from another.
UpperLeftCorner	The test point belongs to the top-left corner in the Day View.
DayViewColumn	The test point belongs to a column in a Day View.
SingleWeek	The test point belongs to a single week.
Timeline	The test point belongs to the timeline bar.
SelectionBar	The test point belongs to the selection bar in the Timeline View.
SelectionBarCell	The test point belongs to a single cell of the selection bar in the Timeline View.
TimeScaleHeader	The test point belongs to the time scale header in the Timeline View.
Ruler	The test point belongs to a time ruler.
NavigationButton	The test point belongs to the navigation button.
ScrollMoreButton	The test point belongs to a Scroll MoreButton.
AppointmentDependency	The test point belongs to the Dependency
Undefined	An object under the test point cannot be determined.
TimeIndicator	The test point belongs to the Time Indicator element.
ContextButtons	Reserved for future use.
GridElement	A test point belongs to the element of the Agenda view grid.
HeaderTab
TabArea
HeaderButton
MonthHeader
Hyperlink

Example

The following examples demonstrate how to handle the SchedulerControl.MouseMove event and calculate the hit information for the point which the mouse pointer is currently hovering over. The information on the element located under the mouse pointer is shown within the form caption.

The second parameter of the SchedulerViewInfoBase.CalcHitInfo method enables you to specify whether you need information on an appointment being clicked, or on a scheduler element located underneath.

When you drag an appointment over the scheduler, you can use the SchedulerViewInfoBase.CalcHitInfo method to determine the scheduler area below. If you drag appointment to the All-Day Area, you can cancel the action.

View Example

Form1.cs

using DevExpress.XtraScheduler;
using DevExpress.XtraScheduler.Drawing;
using System;
using System.Drawing;
using System.Windows.Forms;
        private void schedulerControl1_MouseMove(object sender, MouseEventArgs e)
        {
            SchedulerControl scheduler = sender as SchedulerControl;
            if (scheduler == null) return;

            Point pos = new Point(e.X, e.Y);
            SchedulerViewInfoBase viewInfo = schedulerControl1.ActiveView.ViewInfo;
            SchedulerHitInfo hitInfo = viewInfo.CalcHitInfo(pos, false);

            if (hitInfo.HitTest == SchedulerHitTest.AppointmentContent)
            {
                Appointment apt = ((AppointmentViewInfo)hitInfo.ViewInfo).Appointment;
                Text = apt.Subject;
            }
            else if (scheduler.ActiveView.Type == SchedulerViewType.Day && hitInfo.HitTest == SchedulerHitTest.Cell)
            {
                int diff = pos.Y - hitInfo.ViewInfo.Bounds.Y;
                long ticksPerPixel = hitInfo.ViewInfo.Interval.Duration.Ticks /
                    hitInfo.ViewInfo.Bounds.Height;
                long ticksCount = ticksPerPixel * diff;
                DateTime actualTime = hitInfo.ViewInfo.Interval.Start.AddTicks(ticksCount);
                Text = actualTime.ToString();
            }
            else if (hitInfo.HitTest == SchedulerHitTest.None)
            {
                Text = Application.ProductName;
            }
            else Text = string.Empty;
        }

        private void schedulerControl1_DragOver(object sender, DragEventArgs e)
        {
            SchedulerControl scheduler = sender as SchedulerControl;
            if (scheduler == null) return;

            Point p = scheduler.PointToClient(new Point(e.X, e.Y));
            SchedulerHitInfo info = scheduler.DayView.ViewInfo.CalcHitInfo(p, true);
            if (info.HitTest == SchedulerHitTest.AllDayArea)
                e.Effect = DragDropEffects.None;
        }

Form1.vb

Imports DevExpress.XtraScheduler
Imports DevExpress.XtraScheduler.Drawing
Imports System
Imports System.Drawing
Imports System.Windows.Forms
        Private Sub schedulerControl1_MouseMove(ByVal sender As Object, ByVal e As MouseEventArgs) Handles schedulerControl1.MouseMove
            Dim scheduler As SchedulerControl = TryCast(sender, SchedulerControl)
            If scheduler Is Nothing Then
                Return
            End If

            Dim pos As New Point(e.X, e.Y)
            Dim viewInfo As SchedulerViewInfoBase = schedulerControl1.ActiveView.ViewInfo
            Dim hitInfo As SchedulerHitInfo = viewInfo.CalcHitInfo(pos, False)

            If hitInfo.HitTest = SchedulerHitTest.AppointmentContent Then
                Dim apt As Appointment = CType(hitInfo.ViewInfo, AppointmentViewInfo).Appointment
                Text = apt.Subject
            ElseIf scheduler.ActiveView.Type = SchedulerViewType.Day AndAlso hitInfo.HitTest = SchedulerHitTest.Cell Then
                Dim diff As Integer = pos.Y - hitInfo.ViewInfo.Bounds.Y
                Dim ticksPerPixel = hitInfo.ViewInfo.Interval.Duration.Ticks / hitInfo.ViewInfo.Bounds.Height
                Dim ticksCount = CType(ticksPerPixel * diff, Long)
                Dim actualTime As Date = hitInfo.ViewInfo.Interval.Start.AddTicks(ticksCount)
                Text = actualTime.ToString()
            ElseIf hitInfo.HitTest = SchedulerHitTest.None Then
                Text = Application.ProductName
            Else
                Text = String.Empty
            End If
        End Sub

        Private Sub schedulerControl1_DragOver(ByVal sender As Object, ByVal e As DragEventArgs) Handles schedulerControl1.DragOver
            Dim scheduler As SchedulerControl = TryCast(sender, SchedulerControl)
            If scheduler Is Nothing Then
                Return
            End If

            Dim p As Point = scheduler.PointToClient(New Point(e.X, e.Y))
            Dim info As SchedulerHitInfo = scheduler.DayView.ViewInfo.CalcHitInfo(p, True)
            If info.HitTest = SchedulerHitTest.AllDayArea Then
                e.Effect = DragDropEffects.None
            End If
        End Sub

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the HitTest property.

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-scheduler-hit-testing/CS/HitTest/Form1.cs#L44

if (hitInfo.HitTest == SchedulerHitTest.AppointmentContent)
{

VB.NET

winforms-scheduler-hit-testing/VB/HitTest/Form1.vb#L43

If hitInfo.HitTest = SchedulerHitTest.AppointmentContent Then
    Dim apt As Appointment = CType(hitInfo.ViewInfo, AppointmentViewInfo).Appointment