Bindingsource.filter swapping the month and day around but I don't know why?

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This is the code for my BindingSource.Filter

VB

Dim FilterStartMonth As Date = DateTimePickerTodaysDateTime.Value.Date 
Dim Filter2MonthsBack As Date = DateTimePickerTodaysDateTime.Value.AddMonths(-2).Date 

ClockInTimesBindingSource.Filter = "EmployeeID = " & ComboBoxOfficeEmployeeFilter.SelectedValue & " and Date <= '" & Filter2MonthsBack & "' and Date >= '" & FilterStartMonth & "'"

When i go through it step by step as it runs these are the values:

Filter2MonthsBack = 1/2/2017 12:00:00 AM

FilterStartMonth = 3/2/2017 12:00:00 AM

Which is how i want them, but the BindingSource.Filter reads:

ClockInTimesBindingSource.Filter = "EmployeeID = 49 and Date <= '02/01/2017' and Date >= '02/03/2017'"

I can't work out why it is swapping the month and day around??

Any help would be much appreciated.

What I have tried:

VB

Dim FilterStartMonth As Date = DateTimePickerTodaysDateTime.Value.Date.ToString("d") 
Dim Filter2MonthsBack As Date = DateTimePickerTodaysDateTime.Value.AddMonths(-2).Date.ToString("d") 

ClockInTimesBindingSource.Filter = "EmployeeID = " & ComboBoxOfficeEmployeeFilter.SelectedValue & " and Date <= '" & Filter2MonthsBack & "' and Date >= '" & FilterStartMonth & "'"

VB

Dim FilterStartMonth As Date = DateTimePickerTodaysDateTime.Value.Date 
Dim Filter2MonthsBack As Date = DateTimePickerTodaysDateTime.Value.AddMonths(-2).Date 

ClockInTimesBindingSource.Filter = "EmployeeID = " & ComboBoxOfficeEmployeeFilter.SelectedValue & " and Date <= '" & Filter2MonthsBack.ToString("d") & "' and Date >= '" & FilterStartMonth.ToString("d") & "'"

VB

Dim FilterStartMonth As Date = DateTimePickerTodaysDateTime.Value.Date.ToString("d") 
Dim Filter2MonthsBack As Date = DateTimePickerTodaysDateTime.Value.AddMonths(-2).Date.ToString("d") 

ClockInTimesBindingSource.Filter = "EmployeeID = " & ComboBoxOfficeEmployeeFilter.SelectedValue & " and Date <= '" & Filter2MonthsBack.ToString("d") & "' and Date >= '" & FilterStartMonth.ToString("d") & "'"

Posted 2-Mar-17 8:10am

BeginnerCoderPete

Updated 2-Mar-17 13:04pm

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Graeme_Grant · Answer 1 · 2017-03-02T13:04:00

Your system Culture settings usually deturmines the ToString format. You can check it by doing the following:

VB

Dim culture = Globalization.CultureInfo.CurrentCulture
Dim CultureName = culture.Name
Dim shortDateFormatString = culture.DateTimeFormat.ShortDatePattern
Dim longDateFormatString = culture.DateTimeFormat.LongDatePattern

If you want to force the formatting of dates, then you can pass a formate to ToString as it is overloaded to support custom formatting:

VB

Dim reversedDate = Date.Now.ToString("yy-dd-mm") ' 3/2/17 becomes 17-2-3

You can read more about it here: Custom Date and Time Format Strings[^]