SchedulerDragData Class

Contains data passed to the target SchedulerControl in the drag-and-drop operation.

Namespace: DevExpress.XtraScheduler

Assembly: DevExpress.XtraScheduler.v24.1.Core.Desktop.dll

NuGet Package: DevExpress.Scheduler.CoreDesktop

Declaration

C#

public class SchedulerDragData

VB.NET

Public Class SchedulerDragData

Related API Members

The following members return SchedulerDragData objects:

• SchedulerDragData.GetData(IDataObject)

Remarks

To perform a drag-and-drop operation, you should create an instance of the SchedulerDragData object, populate it with data and pass it to the DoDragDrop method of the control which initiates the operation.

The following example demonstrates a drag-and-drop operation between the GridControl and the SchedulerControl. An end-user drags a data row from the GridView and drops it onto the SchedulerControl, creating a new appointment from that data.

Example

Note

A complete sample project is available at https://github.com/DevExpress-Examples/winforms-scheduler-drag-drop-appointments-from-grid

Form1.cs

private void gridViewTasks_MouseMove(object sender, MouseEventArgs e)
{
    GridView view = sender as GridView;
    if (e.Button == MouseButtons.Left && downHitInfo != null)
    {
        Size dragSize = SystemInformation.DragSize;
        Rectangle dragRect = new Rectangle(new Point(downHitInfo.HitPoint.X - dragSize.Width / 2,
            downHitInfo.HitPoint.Y - dragSize.Height / 2), dragSize);

        if (!dragRect.Contains(new Point(e.X, e.Y)))
        {
            view.GridControl.DoDragDrop(GetDragData(view), DragDropEffects.All);
            downHitInfo = null;
        }
    }
}
SchedulerDragData GetDragData(GridView view)
{
    int[] selection = view.GetSelectedRows();
    if (selection == null)
        return null;

    AppointmentBaseCollection appointments = new AppointmentBaseCollection();
    int count = selection.Length;
    for (int i = 0; i < count; i++)
    {
        int rowIndex = selection[i];
        Appointment apt = schedulerStorage.CreateAppointment(AppointmentType.Normal);
        apt.Subject = (string)view.GetRowCellValue(rowIndex, "Subject");
        apt.LabelKey = (int)view.GetRowCellValue(rowIndex, "Severity");
        apt.StatusKey = (int)view.GetRowCellValue(rowIndex, "Priority");
        apt.Start = DateTime.Now;
        apt.Duration = TimeSpan.FromHours((int)view.GetRowCellValue(rowIndex, "Duration"));
        apt.Description = (string)view.GetRowCellValue(rowIndex, "Description");
        appointments.Add(apt);
    }

    return new SchedulerDragData(appointments, 0);
}

Form1.vb

Private Sub gridViewTasks_MouseMove(ByVal sender As Object, ByVal e As MouseEventArgs) Handles gridViewTasks.MouseMove
    Dim view As GridView = TryCast(sender, GridView)
    If e.Button = MouseButtons.Left AndAlso downHitInfo IsNot Nothing Then
        Dim dragSize As Size = SystemInformation.DragSize
        Dim dragRect As New Rectangle(New Point(downHitInfo.HitPoint.X - dragSize.Width \ 2, downHitInfo.HitPoint.Y - dragSize.Height \ 2), dragSize)

        If Not dragRect.Contains(New Point(e.X, e.Y)) Then
            view.GridControl.DoDragDrop(GetDragData(view), DragDropEffects.All)
            downHitInfo = Nothing
        End If
    End If
End Sub
Private Function GetDragData(ByVal view As GridView) As SchedulerDragData
    Dim selection() As Integer = view.GetSelectedRows()
    If selection Is Nothing Then
        Return Nothing
    End If

    Dim appointments As New AppointmentBaseCollection()
    Dim count As Integer = selection.Length
    For i As Integer = 0 To count - 1
        Dim rowIndex As Integer = selection(i)
        Dim apt As Appointment = schedulerStorage.CreateAppointment(AppointmentType.Normal)
        apt.Subject = CStr(view.GetRowCellValue(rowIndex, "Subject"))
        apt.LabelKey = CInt((view.GetRowCellValue(rowIndex, "Severity")))
        apt.StatusKey = CInt((view.GetRowCellValue(rowIndex, "Priority")))
        apt.Start = Date.Now
        apt.Duration = TimeSpan.FromHours(CInt((view.GetRowCellValue(rowIndex, "Duration"))))
        apt.Description = CStr(view.GetRowCellValue(rowIndex, "Description"))
        appointments.Add(apt)
    Next i

    Return New SchedulerDragData(appointments, 0)
End Function

Inheritance

Object

SchedulerDragData