Optimize Date function (Only if you are bored)

[Qik3Coder]

So i have to pre-load a date drop down with the monday before today. I got this working, but was curious if there was a better way to do it.

By the way, I have tests for this and it works for each day of the week.

    Public Shared Function GetMondayPriorTo(Optional ByVal dteToUse As Date = Nothing) As DateTime
        If Not dteToUse.Date = Nothing Then
            Dim dte As DateTime = dteToUse.Date.AddDays(-1 * (dteToUse.DayOfWeek - DayOfWeek.Monday))
            Return IIf(dte.Date >= dteToUse.Date, dte.AddDays(-7), dte)
        Else
            Return Nothing
        End If
    End Function

Thanks,

-Sometimes the answer to your question is the hack that works

 

[RiverGuy]

I tried, but really, I think you've got the best method already.

 

[Qik3Coder]

I wasn't sure if there was something better. I starting looking at it one way, and have trouble stepping back and trying to think of a diff way to attack it.

-Sometimes the answer to your question is the hack that works

 

[RiverGuy]

Well, the important part of your calculation is Dim dte As DateTime = dteToUse.Date.AddDays(-1 * (dteToUse.DayOfWeek - DayOfWeek.Monday)). It just looks more complicated because you have all the extra checking.