weekend and holiday

[Frank]

Hello,

how can I in GanttViewGraphicalViewElement weekends and holidays Show? 

regards
frank

[Hristo]

Hello Frank,

Thank you for writing.

By default all dates including weekends and holiday are displayed in RadGanttView when the TimelineRange is set to TimeRange.Week or TimeRange.Year. 

You could change the appearance of the dates corresponding to weekends and holidays if you subscribe to TimelineItemFormatting event and apply the desired styling.

If you would need additional assistance please get back to me with a more detailed information about the desired look and I would be glad to help.

I hope this information is useful. Should you have further questions do not hesitate to write back. 

Regards,
Hristo
Telerik

 

 

[Frank]

Hello Hristo,

Thanks, but I meant a vertical display as shown in the attachment.

regards
Frank
.

[Hristo]

Hi Frank,

Thank you for writing.

It is possible to create a GanttView as in the picture you attached, however we do not have it out of the box.
You would need to inherit RadGanttView, RadGanttViewElement and GanttViewGraphicalViewElement classes, then override the creation and Theme related methods and at the end implement your own logic for painting the elements at your CustomGanttViewGraphicalViewElement class. Please see the code snippets below with a sample implementation:

public class CustomGanttView : RadGanttView
{
    protected override RadGanttViewElement CreateGanttViewElement()
    {
        return new CustomGanttViewElement();
    }

    public override string ThemeClassName
    {
        get { return typeof(RadGanttView).FullName; }
    }
}

public class CustomGanttViewElement : RadGanttViewElement
{
    protected override GanttViewGraphicalViewElement CreateGraphicalViewElement(RadGanttViewElement ganttView)
    {
        return new CustomGanttViewGraphicalViewElement(this);
    }

    protected override Type ThemeEffectiveType
    {
        get { return typeof(RadGanttViewElement); }
    }
}

public class CustomGanttViewGraphicalViewElement : GanttViewGraphicalViewElement
{
    private List<DateTime> specialDates = new List<DateTime>();

    public List<DateTime> SpecialDates
    {
        get { return specialDates; }
        set { specialDates = value; }
    }

    public CustomGanttViewGraphicalViewElement(RadGanttViewElement ganttView)
        : base(ganttView)
    { }

    protected override Type ThemeEffectiveType
    {
        get { return typeof(GanttViewGraphicalViewElement); }
    }

    //Logic for painting the elements
    protected override void PaintElement(Telerik.WinControls.Paint.IGraphics graphics, float angle, System.Drawing.SizeF scale)
    {
        base.PaintElement(graphics, angle, scale);

        Rectangle clipRect = this.Bounds;
        Graphics g = graphics.UnderlayGraphics as Graphics;

        g.SetClip(clipRect);

        DateTime currentDate = this.TimelineBehavior.AdjustedTimelineStart;

        while (currentDate <= this.TimelineBehavior.AdjustedTimelineEnd)
        {
            float x = (float)((currentDate - this.TimelineBehavior.AdjustedTimelineStart).TotalSeconds / this.OnePixelTime.TotalSeconds);
            x -= this.HorizontalScrollBarElement.Value;
            float y = this.GanttViewElement.HeaderHeight;
            float y2 = this.Bounds.Height;

            if (currentDate.DayOfWeek == DayOfWeek.Saturday || currentDate.DayOfWeek == DayOfWeek.Sunday)
            {
                graphics.FillRectangle(new RectangleF(x, y, 100f, y2), Color.LightGray);
            }
            else if (this.SpecialDates.Contains(currentDate.Date))
            {
                graphics.FillRectangle(new RectangleF(x, y, 100f, y2), Color.Orange);
            }
            else
            {
                graphics.FillRectangle(new RectangleF(x, y, 100f, y2), Color.White);
            }

            graphics.DrawLine(Color.LightBlue, x, y, x, y2);

            currentDate = currentDate.AddDays(1);
        }

        g.ResetClip();
    }
}

In your form you should also subscribe to the GraphicalViewItemFormatting and TimelineItemFormatting events:

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();

        //this.LoadData();
        this.radGanttView1.GanttViewElement.GraphicalViewElement.TimelineRange = TimeRange.Month;
        this.Load += Form1_Load;
        this.radGanttView1.GraphicalViewItemFormatting += radGanttView1_GraphicalViewItemFormatting;
        this.radGanttView1.TimelineItemFormatting += radGanttView1_TimelineItemFormatting;

        ((CustomGanttViewGraphicalViewElement)this.radGanttView1.GanttViewElement.GraphicalViewElement).SpecialDates.Add(new DateTime(2014, 12, 25));
        ((CustomGanttViewGraphicalViewElement)this.radGanttView1.GanttViewElement.GraphicalViewElement).SpecialDates.Add(new DateTime(2014, 12, 26));
    }

    Font font = new Font("Arial",7.5f);
    private void radGanttView1_TimelineItemFormatting(object sender, GanttViewTimelineItemFormattingEventArgs e)
    {
        DateTime date;
        LightVisualElement element;
        for (int i = 0; i < e.ItemElement.Children[1].Children.Count; i++)
        {
            date = e.ItemElement.Data.Start.AddDays(i);
            element = e.ItemElement.Children[1].Children[i] as LightVisualElement;
            if (element!=null)
            {
                element.Text = date.Day + "\n" + date.DayOfWeek.ToString().Substring(0, 2);
                element.Font = font;
            }
        }
    }

    void radGanttView1_GraphicalViewItemFormatting(object sender, GanttViewGraphicalViewItemFormattingEventArgs e)
    {
        e.ItemElement.DrawFill = false;
    }
}

I have also attached a screenshot of what the result is on my side. 

Hope this helps. Should you have further questions, do not hesitate to write back.

Regards,
Hristo
Telerik

 

 

[Frank]

Hello Hristo,

thank you.
I will test it in the next few days.

regards
Frank

[Frank]

Hello Hristo,

it works very well.
Thank you.

regards
Frank
​

[John]

You wouldn't happen to have this for a VB solution, I tried Code Converter and am struggling.

Thanks...

[Hristo]

Hi John,

Thank you for writing.

We created a KB resource out of the discussed in this thread solution. The KB article is available here and it has a VB example.

I hope this helps. Should you have further questions please do not hesitate to write back.

Regards,
Hristo Merdjanov
Telerik by Progress