Set days/hours locked

[Aldo]

Is it possible to set some time/day slots as locked, so that tasks cannot be put inside those slots?

Thanks

[Vladi]

Hello Aldo,

Thank you for contacting us.

In order to achieve the described "not allowed to drop into" spots in the control's TimeRuler you could take advantage of a custom DragDropBehavior. More details about customizing the DragDropBehavior of the RadGanttView control can be found in our online documentation here. What you could do is:

• Create a custom drag and drop behavior by creating a class that inherits the telerik GanttDragDropBehavior class
• Override its CanDrop method
• In that method add implementation that will return False when the state.DestinationSlot is considered not allowed

You can find a runnable sample project of the described approach named "NotAllowedTargetDropSlots" in our online SDK repository located at GitHub. Hope this is helpful.


Regards,
Vladi
Telerik

[Aldo]

Hi, this solution can be a way, but we need to display not allowed slots, them should be rendered to give a visual impact to our users

[Vladi]

Hi Aldo,

In order to achieve the visual effect of the "not allowed slots" you can take advantage of the controls TimeLineVisualizationBehavior. This behavior is responsive for the rendering of all the elements in the TimeLine of the control. You can take a look at our "Baseline" SDK example which demonstrates how to create a custom TimeLineVisualizationBehavior in order to render static transparent containers in the TimeLine of the control.

The combination of the previously discussed SDK example and this one should yield the desired functionality.

Regards,
Vladi
Telerik

[Aldo]

We're trying to reproduce your sample, but we  got an exception in your code (copy-pasted)

As you can see in the screenshot we got a "An unhandled exception of type 'System.ArgumentException' occurred in Telerik.Windows.Controls.GanttView.dll", "Additional information: Not supported item type."

The unsupported item type is {Telerik.Windows.Controls.Scheduling.TickInfo}

[Aldo]

The problem could be in the target framework : your sample targeting FX 4 mine 4.5.2

I changed target framework on your github sample, updated references to .45 Telerik .dll and now your sample raise the same exception

[Vladi]

Hi Aldo,

We are not aware of such issues in the current version of the RadGnattView control.

Changing the targeted framework version of a project that refers the required assemblies for the RadGanttView control from .NET 4.0/4.5 to .NET 4.5.2 works as expected. I recorded a short video for you showing how the described scenario runs on our side. You can find the video file attached to my last response. If we have missed something please let us know.

Could you share with us more details about the environment in which the mentioned "ArgumentException" is being thrown. What is the:

• OS version
• .NET Framework version (has the 4. version been installed or the latest one is the 4.5.2)
• The MS Visual Studio opening the project
• Or any other related information yo think could be useful

In the meanwhile could you try to reproduce the discussed issue on a different machine? Looking forward to your response.

Regards,
Vladi
Telerik