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Disable draw relation in Gantt view

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GanttView
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Prolay
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Prolay asked on 11 Dec 2012, 11:58 AM
Hi,

I want to disable the draw relation feature in a particular Gantt View. How will i be able to achieve it.



Thanks and Regards,
Prolay

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Masha
Telerik team
answered on 17 Dec 2012, 04:09 PM
Hello Prolay,

Sorry for the late reply.

The easiest way to disable drag relations is to remove their definitions form the control template of EventDecoratorContainer inside RadGanttView. I demonstrated what changes should be implemented inside App.xaml in the attached file to achieve the approach.

I hope it helps.

All the best,
Maria
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Anne Lyon
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answered on 10 Jan 2013, 10:03 AM
Isn't there a simple way to make a GanttView ReadOnly? I don't want my user to either draw relations, move or resize any tasks.
Anne
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Miroslav Nedyalkov
Telerik team
answered on 11 Jan 2013, 05:20 PM
Hi Anne,

Thank you for your feedback.

Currently the easiest way to make the GanttView control read-only is using the theme - from it you can disable the drag&drop functionality and to hide the extra visuals, meant for editing. For future we will consider one stop solution for read-only mode.

All the best,
Miroslav Nedyalkov
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Guilherme
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answered on 14 May 2014, 01:27 PM
HI Masha,

You solution worked as planned. However, as far as I know, it modify the gantt behaviour in all pages of the application. 
Is it possible to modify a specific gantt view, applying the style to the EventDecoratorContainer ?



[quote]Masha said:Hello Prolay,

Sorry for the late reply.

The easiest way to disable drag relations is to remove their definitions form the control template of EventDecoratorContainer inside RadGanttView. I demonstrated what changes should be implemented inside App.xaml in the attached file to achieve the approach.

I hope it helps.

All the best,
Maria
the Telerik team
 

Explore the entire Telerik portfolio by downloading Telerik DevCraft Ultimate.

 
[/quote]
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Masha
Telerik team
answered on 16 May 2014, 11:33 AM
Hi Prolay,

You can defined different EventDecorator container styles as a separate style in a scope of RadGanttView. Please check the code snippet below:
<telerik:RadGanttView Grid.Row="1" VisibleRange="{Binding VisibleRange}" TasksSource="{Binding Tasks}"
PixelLength="00:30:00"
HighlightedItemsSource="{Binding HighlightedItems}">
<telerik:RadGanttView.Resources>
 
<Style TargetType="telerik:EventDecoratorContainer">
    <Setter Property="telerik:ZIndexManager.ZIndex" Value="40" />
    <Setter Property="MilestoneContainerMargin" Value="-6 0" />
    <Setter Property="SummaryContainerMargin" Value="-4 0" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="gantt:EventDecoratorContainer">
            ...
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
</telerik:RadGanttView.Resources>


I hope this helps.

Regards,
Masha
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Prolay
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Masha
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Anne Lyon
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Miroslav Nedyalkov
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Guilherme
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