Setting TimeSlot colors

[Terry Newton]

I am dynamically altering the background color via applying a style to the timeslotitems at run time during a drag operation using information from the drag context to set the eligible drop target timeslot colors.  This works but messes up the prior behaviours of selecting a day via a click and having the color change and the mouseover stuff.  I modeled this on the OneWeekDayStyle referenced in your examples that use a converter(the converter solution does not know the timewindow determined by the drag object, so that solution will not work without substantial modification).  I tried using your style to restore unsuccessfully, but that may still be a usefull approach.  I am including the main logic and the main style to show what I did.

 

I would like advice on how to correct my approach to avoid breaking the desired behaviours.

 

Thanks for any possible help!

 

Private Sub SetDragBackground(ByVal otime As Time)

            If Me.Mode = CalendarMode.Day Or Me.Mode = CalendarMode.Week Then

                  Dim smsg As String = ""

                  Dim oTimeSlotItems As IList(Of TimeSlotItem) = ctlScheduler.ChildrenOfType(Of TimeSlotItem)()

                  For Each oTimeSlotItem In oTimeSlotItems

                        smsg = ""

                        If Me.DragAssignment IsNot Nothing AndAlso Me.DragAssignment.IsTimeAcceptable(oTimeSlotItem.TimeSlot.Start, oTimeSlotItem.TimeSlot.End, smsg) AndAlso Me.DragAssignment.IsDateAcceptable(oTimeSlotItem.TimeSlot.Start, oTimeSlotItem.TimeSlot.End, smsg) AndAlso Not (oTimeSlotItem.TimeSlot.Start.Date < Today.Date And Not CanScheduleInPast) Then

                              oTimeSlotItem.Style = System.Windows.Application.Current.Resources("StyleTimeSlotEligible")

                        Else

                              'set the default background color

                              If oTimeSlotItem.TimeSlot.Start.Date = Me.SelectedDay.Date Then

                                    'oTimeSlotItem.Style = System.Windows.Application.Current.Resources("OneWeekDayStyle")

                                    oTimeSlotItem.Style = System.Windows.Application.Current.Resources("StyleTimeSlotSelectedDay")

                              Else

                                    'oTimeSlotItem.Style = System.Windows.Application.Current.Resources("OneWeekDayStyle")

                                    oTimeSlotItem.Style = System.Windows.Application.Current.Resources("StyleTimeSlotIneligible")

                              End If

                        End If

                  Next

            End If

      End Sub

      <Style x:Key="StyleTimeSlotEligible" TargetType="tkControlsScheduler:TimeSlotItem">

            <Setter

             Property="Template"

             >

                  <Setter.Value>

                        <ControlTemplate TargetType="tkControlsScheduler:TimeSlotItem">

                              <Border x:Name="PART_ContentHost"

                                    Background="PaleGreen"

                                    Margin="0,0,1,1"

                                          MinHeight="10">

                                    <tkControls:CommandManager.InputBindings>

                                          <tkControls:InputBindingCollection>

                                                <tkControls:MouseBinding MouseAction="LeftDoubleClick" Command="tkControlsScheduler:RadSchedulerCommands.CreateAppointment"  />

                                          </tkControls:InputBindingCollection>

                                    </tkControls:CommandManager.InputBindings>

 

                                    <msWindows:VisualStateManager.VisualStateGroups>

                                          <msWindows:VisualStateGroup x:Name="CommonStates">

                                                <msWindows:VisualState x:Name="Normal" />

                                                <msWindows:VisualState x:Name="MouseOver" >

                                                      <Storyboard>

                                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="PART_ContentHost" Storyboard.TargetProperty="Background" Duration="0">

                                                                  <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource MonthTimeSlotItemOverBrush}"/>

                                                            </ObjectAnimationUsingKeyFrames>

                                                      </Storyboard>

                                                </msWindows:VisualState>

                                          </msWindows:VisualStateGroup>

                                          <msWindows:VisualStateGroup x:Name="SelectionStates">

                                                <msWindows:VisualState x:Name="Unselected"/>

                                                <msWindows:VisualState x:Name="Selected">

                                                      <Storyboard>

                                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="PART_ContentHost" Storyboard.TargetProperty="Background" Duration="0">

                                                                  <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource MonthTimeSlotItemSelectedBrush}"/>

                                                            </ObjectAnimationUsingKeyFrames>

                                                      </Storyboard>

                                                </msWindows:VisualState>

                                          </msWindows:VisualStateGroup>

                                    </msWindows:VisualStateManager.VisualStateGroups>

 

                              </Border>

 

                        </ControlTemplate>

                  </Setter.Value>

            </Setter>

            <Setter Property="Background" Value="PaleGreen"/>

      </Style>

 

[Teodor]

Terry Newton,

Thank you for contacting us.

Actually, the best way to customize TimeSlot appearance is via the TimeSlotTemplateSelector property. More on this here:

http://www.telerik.com/help/silverlight/radscheduler-styles-templates-timeslot-template-selector.html

Hope this helps. Let us know if you have other queries.

Best wishes,
Teodor
the Telerik team

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