Getting the wrong number of days for days between dates

I am trying to write a function to get the "Days between dates". The code I have (for a console application) is shown below. For some reason, it is not giving the correct number of days between dates. How do I get this to work correctly?

Code:

Dim BeginningDate As Date
Dim EndingDate As Date

Dim DaysBetweenDates = DateDiff(DateInterval.Day, EndingDate.Date, BeginningDate.Date)
Dim msg = String.Format(" days between dates.", DaysBetweenDates)

Console.WriteLine("                          Days Between Dates Subroutine")
For A = 1 To 5
     Console.WriteLine(" ")
Next

Console.WriteLine("Enter the beginning date (xx/xx/xxxx): ")
BeginningDate = Console.ReadLine()
Console.WriteLine("Enter the ending date (xx/xx/xxxx): ")
BeginningDate = Console.ReadLine()

Console.WriteLine(DateDiff("d", EndingDate, BeginningDate) & msg)

 

It seems there are a couple of issues with your code. First, you are using the

Code:

DateDiff

function before initializing the

Code:

BeginningDate

and

Code:

EndingDate

variables. Second, you are reading the input into the `BeginningDate` variable twice instead of initializing `EndingDate`.

Here's the corrected version of your code in VB.NET:

Code:

vbnet
Module Module1
    Sub Main()
        Dim BeginningDate As Date
        Dim EndingDate As Date

        Console.WriteLine("                          Days Between Dates Subroutine")
        For A = 1 To 5
            Console.WriteLine(" ")
        Next

        Console.WriteLine("Enter the beginning date (MM/dd/yyyy): ")
        BeginningDate = Date.Parse(Console.ReadLine()) ' Read the beginning date

        Console.WriteLine("Enter the ending date (MM/dd/yyyy): ")
        EndingDate = Date.Parse(Console.ReadLine()) ' Read the ending date

        Dim DaysBetweenDates = DateDiff(DateInterval.Day, BeginningDate, EndingDate)
        Dim msg = String.Format(" days between dates.", DaysBetweenDates)

        Console.WriteLine(DateDiff("d", BeginningDate, EndingDate) & msg)
    End Sub
End Module

Changes made:
1. Initialized `BeginningDate` and `EndingDate` variables before using them in the `DateDiff` function.
2. Corrected the `DateDiff` function by swapping the `BeginningDate` and `EndingDate` parameters.
3. Removed unnecessary code lines.

With these changes, your program should now correctly calculate the number of days between the provided dates. Make sure to input the dates in the format "MM/dd/yyyy" for the program to work as expected.