RadiantQ Forum

Product => WPF Gantt Package => Topic started by: michael.fried on December 11, 2014, 07:56:58 AM

Title: Overlapping days when scrolling
Post by: michael.fried on December 11, 2014, 07:56:58 AM

Hi,

Is it possible to have overlap of some days when pressing TimeScaleShiftLeft/RightButton?

e.g. my current scroll view shows dates from 1.-10. Dec. is it possible to show the time span from 5.-15. Dec. when pressing the TimeScaleShiftRightButton instead of starting at 11. of Dec.?

Thanks and kind regards,
Michael

Title: Re: Overlapping days when scrolling
Post by: amarnath on December 11, 2014, 03:06:43 PM

Michael,

It is possible to set ViewStart on pager button click by using below code,

Code: [Select]

        void ganttControl_TemplateApplied(object sender, EventArgs e)
        {
            this.ganttControl.GanttChart.Loaded += GanttChart_Loaded;
        }

        void GanttChart_Loaded(object sender, RoutedEventArgs e)
        {
            this.ganttControl.GanttChart.TimeScaleShiftRightButton.Click += TimeScaleShiftRightButton_Click;
            this.ganttControl.GanttChart.TimeScaleShiftLeftButton.Click += TimeScaleShiftLeftButton_Click;
        }

        void TimeScaleShiftLeftButton_Click(object sender, RoutedEventArgs e)
        {
            if (this.ganttControl.GanttChart.ScrollViewerElement.HorizontalOffset != 0)
                return; // Do nothing until we reach left most scroll position.

            e.Handled = true; // To prevent default click processing in the gantt.

            // To shift by 5 days every time
            this.ganttControl.GanttChart.AnchorTime = this.ganttControl.GanttChart.AnchorTime - TimeSpan.FromDays(5);
        }

        void TimeScaleShiftRightButton_Click(object sender, RoutedEventArgs e)
        {
            if (this.ganttControl.GanttChart.ScrollViewerElement.HorizontalOffset != this.ganttControl.GanttChart.ScrollViewerElement.ScrollableWidth)
                return; // Do nothign until we reach the right most scroll position.

            e.Handled = true; // To prevent default click processing in the gantt.

            // To shift by 5 days every time
            this.ganttControl.GanttChart.AnchorTime = this.ganttControl.GanttChart.AnchorTime + TimeSpan.FromDays(5);
        }
Thanks,
Amar

Title: Re: Overlapping days when scrolling
Post by: michael.fried on December 11, 2014, 05:08:28 PM

Hi Amar,

Many thanks for the quick solution! Works nicely.

Kind regards,
Michael