Can infragistic tell us a rough estimate on when this can be fixed?

This issue can be easily replicated in their WPF Sample projects. Hence I am surprise that this is not picked up in their testing

I downloaded the patch and now started getting another issue.

I am using the following code, which works fine on C# 4.0, but throws an error on C# 4.5

<ig:ScheduleSettings.WorkingHours>

<ig:WorkingHoursCollection>                                 

<ig:TimeRange Start="00:00" End="00:00" />

</ig:WorkingHoursCollection>

</ig:ScheduleSettings.WorkingHours>

"Add value to collection of type 'Infragistics.Controls.Schedules.WorkingHoursCollection' threw an exception."

I need to set the "End" value greater than "Start" Value, then it works fine.

A zero duration TimeRange is not valid for working times so an exception is thrown when such a TimeRange is added to the WorkingHours. That is the correct behavior.

I have already been using this on C# 4.0 application, which is already in production since past 1 year. It throws this error only on 4.5 and not on 4.0.

The exception was added recently to fix a bug. A zero duration timerange is an invalid working time (i.e. you cannot have a working time without having some duration to the range) that would not have been treated as any working time. Is there a reason you were adding that?

Yes, without it, the control shows 9:00 AM - 5:00 PM background color as white, and gray for rest all. I just want to show either full gray or full white.

Is there any alternate way of achieving it?

Thanks!

Well if you want all days to be considered non-working time then you could set the WorkDays to "None". If you want a day to be entirely working (when IsWorkDay resolves to true) then you would add a TimeRange whose start is "00:00" and whose end is "1.00:00".