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GanttView Styles

You can check how to set a theme to the control in this topic. Using implicit styles makes it much easier to customize different parts of the control.

Before proceeding, check the Implicit Style article.

You can modify the look of the RadGanttView and its elements separately by simply creating an implicit style with the correct TargetType. Also you will have the option to create a Style based on the default Style for a certain element.

Let’s for example have a GanttView control defined like this:

<telerik:RadGanttView x:Name="ganttView" TasksSource="{Binding Tasks}" >
    <telerik:RadGanttView.TimeRulerLines>
        <telerik:GroupTickLine>
            <telerik:TickInterval Interval="OneWeek" />
        </telerik:GroupTickLine>
        <telerik:MajorTickLine>
            <telerik:TickInterval Interval="OneDay" />
        </telerik:MajorTickLine>
        <telerik:MinorTickLine>
            <telerik:TickInterval Interval="ThreeHours" />
        </telerik:MinorTickLine>
    </telerik:RadGanttView.TimeRulerLines>
    <telerik:RadGanttView.Columns>
        <telerik:TreeColumnDefinition MemberBinding="{Binding Title}" Header="Title" Width="AutoHeaderAndContent"/>
        <telerik:ColumnDefinition MemberBinding="{Binding Start}" Header="Start" Width="AutoHeaderAndContent"/>
        <telerik:ColumnDefinition MemberBinding="{Binding End}" Header="End" Width="AutoHeaderAndContent"/>
    </telerik:RadGanttView.Columns>
</telerik:RadGanttView>

The following scheme shows the name of each element that can be styled:

ganttview styles 01

In the next screenshots we will focus on the Columns part of the GanttView control:

CellHighlight and TreeCellHighlight are used for both highlighted and selected states of the Cell/TreeCell respectively.

If we have CellTemplate and/or CellEditTemplate defined, the generated containers are different. For example, let&s change our GanttView Columns like this:

<telerik:RadGanttView x:Name="ganttView2" TasksSource="{Binding Tasks}" >
    <!--...-->
    <telerik:RadGanttView.Columns>
        <telerik:TreeColumnDefinition Header="Title" MemberBinding="{Binding Title}" Width="AutoHeaderAndContent">
            <telerik:TreeColumnDefinition.CellTemplate >
                <DataTemplate>
                    <TextBlock Text="{Binding Title}" />
                </DataTemplate>
            </telerik:TreeColumnDefinition.CellTemplate>
            <telerik:TreeColumnDefinition.CellEditTemplate>
                <DataTemplate>
                    <TextBox Text="{Binding Title,Mode=TwoWay}" />
                </DataTemplate>
            </telerik:TreeColumnDefinition.CellEditTemplate>
        </telerik:TreeColumnDefinition>
        <telerik:ColumnDefinition MemberBinding="{Binding Start}" Header="Start" Width="AutoHeaderAndContent">
            <telerik:ColumnDefinition.CellTemplate >
                <DataTemplate>
                    <TextBlock Text="{Binding Start}" />
                </DataTemplate>
            </telerik:ColumnDefinition.CellTemplate>
            <telerik:ColumnDefinition.CellEditTemplate>
                <DataTemplate>
                    <telerik:RadDateTimePicker SelectedValue="{Binding Start,Mode=TwoWay}" />
                </DataTemplate>
            </telerik:ColumnDefinition.CellEditTemplate>
        </telerik:ColumnDefinition>
        <!--...-->
    </telerik:RadGanttView.Columns>
</telerik:RadGanttView>

The containers in the grid will be Cell/TreeCell instead of SimpleCell/SimpleTreeCell. Also the containers for editing will be CellEditing/TreeCellEditing:

ganttview styles 09

In case we have SpecialSlots defined:

<telerik:RadGanttView x:Name="ganttView1" TasksSource="{Binding Tasks}" >
    <!--...-->
    <telerik:RadGanttView.SpecialSlotsGenerator>
        <telerik:WeekDaysGenerator FirstDay="Monday" DaysCount="5" />
    </telerik:RadGanttView.SpecialSlotsGenerator>
</telerik:RadGanttView>

We can style them as well:

ganttview styles 02

The next screenshots show all the elements used for DragDrop and Resize functionality of the control:

ganttview styles 03ganttview styles 04

ganttview styles 05

In the following table you will find the corresponding TargetType for each of these elements:

Element TargetType
Relation RelationContainer
Event EventContainer
Summary SummaryContainer
Milestone MilestoneContainer
ColumnHeader ColumnHeaderContainer
SimpleCell SimpleCellContainer
Cell CellContainer
CellHighlight CellHighlightContainer
CellEditing CellEditingContainer
SimpleTreeCell SimpleTreeCellContainer
TreeCell TreeCellContainer
TreeCellHighlight TreeCellHighlightContainer
TreeCellEditing TreeCellEditingContainer
BorderContainer BorderContainer
AlternatingBorderContainer AlternatingBorderContainer
SpecialSlot SpecialSlotContainer
GroupTick GroupTickContainer
MinorTick MinorTickContainer
MajorTick MajorTickContainer
CurrentHourTick CurrentHourTickContainer
RowHighlight RowHighlightContainer
RowSelection RowSelectionContainer
DragResizeSlotHighlight DragResizeSlotHighlightContainer
DragResizeMilestoneSlotHighlight DragResizeMilestoneSlotHighlightContainer
DragResizeSummarySlotHighlight DragResizeSummarySlotHighlightContainer
GanttDragResizeVisualCue GanttDragResizeVisualCue
GanttPresenterSplitter GanttPresenterSplitter
ExpandToggleButton ToggleButton
Deadline DeadlineContainer

Examples

We will go through two examples:

Basing Styles on a theme Style

Each of these containers listed in the table has a style formed by the name of the container type followed by a “Style” suffix. For example, for the EventContainer there is a style with x:Key=”EventContainerStyle”.

So, let’s create the following implicit style:

<Style TargetType="telerik:EventContainer" BasedOn="{StaticResource EventContainerStyle}">
    <Setter Property="Foreground" Value="White" />
    <Setter Property="Background" Value="Navy" />
</Style>

This will lead to the following result:

ganttview styles 06

Setting implicit style to a certain element

In case you need to further customize an element, you could create an implicit style for it. Here is a simple example for the DragResizeSlotHighlightContainer element:

<Style TargetType="gantt:DragResizeSlotHighlightContainer">
    <Setter Property="BorderBrush" Value="{x:Null}" />
    <Setter Property="BorderThickness" Value="0" />
    <Setter Property="HorizontalContentAlignment" Value="Stretch" />
    <Setter Property="VerticalContentAlignment" Value="Stretch" />
    <Setter Property="VerticalAlignment" Value="Center" />
    <Setter Property="MinHeight" Value="17" />
    <Setter Property="Padding" Value="5 0" />
    <Setter Property="Background" Value="Orange" />
    <Setter Property="Foreground" Value="{StaticResource MainBrush}" />
    <Setter Property="scheduling:ZIndexManager.ZIndex" Value="35" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="gantt:DragResizeSlotHighlightContainer">
                <Grid>
                    <Border Background="{TemplateBinding Background}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Opacity="0.7"></Border>
                    <Border Background="{StaticResource BasicBrush}" Opacity="0.3" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
                    <TextBlock Text="{Binding Task.Title}" Foreground="{TemplateBinding Foreground}" Margin="{TemplateBinding Padding}" />
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

After adding this Style, the element will look like this:ganttview styles 07
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