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Block used from selecting weekends / holidays

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GanttView
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Ian
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Ian asked on 07 Feb 2014, 01:14 PM
Hi

I am using the GanttView in edit mode to allow users to move start/end dates using the graphical view by dragging the start/end dates with the mouse.

I would like to prevent users from selecting certain dates and weekends ie to prevent start/end dates being set to a saturday, sunday or any other dates that I might not require them to use (i.e bank holidays / non-work days).

Is there a way to achieve this?

Thanks
Ian

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Dimitar
Telerik team
answered on 11 Feb 2014, 02:37 PM
Hello Ian,

Thank you for writing us.

To achieve such functionality you can override the default GanttViewBehavior. In this case you can override the ProcessMouseMoveWhenResizingTask method in order to disable specific dates:
public class MyBehaviour : BaseGanttViewBehavior
{
    protected override void ProcessMouseMoveWhenResizingTask(GanttGraphicalViewBaseTaskElement element, MouseEventArgs e)
    {
        Point mousePosition = this.GanttViewElement.GraphicalViewElement.PointFromControl(e.Location);
        int distanceFromLeftBorder = this.GanttViewElement.GraphicalViewElement.HorizontalScrollBarElement.Value + mousePosition.X;
        DateTime newStart = this.GanttViewElement.GraphicalViewElement.TimelineBehavior.AdjustedTimelineStart.AddSeconds(distanceFromLeftBorder * this.GanttViewElement.GraphicalViewElement.OnePixelTime.TotalSeconds);
 
        DateTime forbiddendDay = new DateTime(2010, 12,10);
 
        
        if (newStart.Date.Day == forbiddendDay.Date.Day)
        {
             
            return;
        }
        base.ProcessMouseMoveWhenResizingTask(element, e);
    }
}

The default behaviour can be changed with the following line of code:
this.radGanttView1.GanttViewBehavior = new MyBehaviour();

I hope this will be useful. Should you have further questions, I would be glad to help.

Regards,
Dimitar
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Ian
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answered on 20 Feb 2014, 02:09 PM
Thanks, I will trial shortly.

Regards
Ian
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Dimitar
Telerik team
answered on 25 Feb 2014, 08:53 AM
Hi Ian,

Thank you for writing back.

Take as much time as you need to examine this. If you have additional questions do not hesitate to contact us.

Regards,
Dimitar
Telerik
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Ian
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