How to compare between two dates in VB.NET ?

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SQL-Server-2012

I have two dates field
first : confirmed delivery date
second :real delivery date
i want to decrease confirmed delivery date from real delivery date to calculate delay time
can you help me please ?

What I have tried:

How to Compare between Two Dates in vb.net ?

Posted 16-Mar-16 0:43am

hat85

Updated 16-Mar-16 2:58am

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OriginalGriff · Accepted Answer · 2016-03-16T00:58:00

Assuming you have the dates in VB, they should be in DateTime values.
So...

VB

Dim diff As Timespan = realDeliveryDate - confirmedDeliveryDate

If you don;t have them as DateTime values, then convert them to DateTime using DateTime.TryParse
If they are in SQL, then again, they should be DATE or DATETIME columns, in which case

SQL

SELECT DATEDIFF(dd, realDeliveryDate, confirmedDeliveryDate) FROM MyTable

Where "dd" selects days (but see DATEFIFF for other options).
If they are stored in SQL as strings, then change your datasbe to use DATE or DATETIME columns instead as it will only cause major hassles if you don't!

koolprasad2003 · Accepted Answer · 2016-03-16T02:58:00

Alternate to above solution you can use, .Subtract method of date class.
look at below code

VB

Dim dateOne = DateTimePicker1.Value
Dim dateTwo = DateTimePicker2.Value
Dim diff As TimeSpan = dateTwo.Subtract(dateOne)
Dim years As Double = diff.TotalDays / 365
txtyrs.Text = years.ToString
txtmonsh.Text = (years * 12).ToString
txtdays.Text = diff.TotalDays.ToString

Hope it helps

How to compare between two dates in VB.NET ?

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