week number on ganttview

[Kourosh]

Hello Telerik,

How can I show week number on timerulerlines?

I am following your tutorial:

<telerik:RadGanttView.TimeRulerLines>
                <telerik:GroupTickLine>
                    <telerik:TickInterval Interval="OneMonth" FormatString="{}{0:MMMM, yyyy}" />
                </telerik:GroupTickLine>
                <telerik:MajorTickLine>
                    <telerik:TickInterval Interval="OneWeek" />
                </telerik:MajorTickLine>
                <telerik:MinorTickLine>
                    <telerik:TickInterval Interval="OneDay" FormatString="Day {0:dd}" />
                </telerik:MinorTickLine>
            </telerik:RadGanttView.TimeRulerLines>

but the week number is not displaying. just the word "Week" is showing!

Best Regards

kourosh

[Martin Ivanov]

Hello Kourosh,

The .NET framework doesn't provide you with a format string that allows you to extract the number of the date's week. In order to achieve you requirement you can create a custom TickInterval and override its FormatValue() method. This will allow you to return a custom string. Here is an example in code:

public class CustomTickInterval : TickInterval
{
    protected override string FormatValue(Range<long> timeRange)
    {
        var rangeMiddle = timeRange.Start + ((timeRange.End - timeRange.Start) / 2);
        var date = new DateTime(rangeMiddle);

        System.Globalization.CultureInfo cul = System.Globalization.CultureInfo.CurrentCulture;

        int weekNum = cul.Calendar.GetWeekOfYear(date, System.Globalization.CalendarWeekRule.FirstFourDayWeek, DayOfWeek.Monday);
        return "Week " + weekNum;
    }
}

I used the approach for getting the week number shown in the following stackoverflow topic.

Then you can use the custom interval in XAML.

<telerik:MajorTickLine>
    <local:CustomTickInterval Interval="OneWeek"/>
</telerik:MajorTickLine>

Regards,
Martin Ivanov
Progress Telerik

[Kourosh]

Thank you Martin,

It works like a charm! :)

Best Regards

Kourosh