Determine Date By Adding Days

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3.50/5 (2 votes)

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Hi All

I was wondering if someone could possibly assist in a timespan issue.

I have a textbox with todays date (shortdate) and another textbox that i want to beable to add days (integer) and then i want to be able to work what the date will be after adding the number of days.

Any Help would be helpful, i know i have to use timespan, but is there an easier way.

cheers

Posted 18-May-11 10:19am

SIFNOk

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3 solutions

Solution 1

Adding Subtracting From DateTime Object[^]

Posted 18-May-11 11:14am

EscKey2004

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**Dalek Dave** · Accepted Answer · 2011-05-18T11:20:00

Solution 3

Use AddDays.

VB

Dim today As System.DateTime
Dim future As System.DateTime

today = System.DateTime.Now
future = today.AddDays(NumberOfDays)

MessageBox.Show(future)

That should do it.

You just have to provide the number of days.

Posted 18-May-11 11:20am

Dalek Dave

Comments

SIFNOk 18-May-11 17:24pm

Thanks For The Reply Dave!

Yeah that seems to work....what if i had a textbox with a shortdate thats a string, how could i get the same result from that ?

Dalek Dave 18-May-11 17:29pm

http://www.codeproject.com/KB/cs/String2DateTime.aspx

Sergey Alexandrovich Kryukov 18-May-11 17:33pm

Correct, a 5.
--SA

SIFNOk 18-May-11 17:41pm

Cheeers Davee! Your Absolute Legend! *Puts Dave on wall of legends!

Works Dope!

Ed Nutting · Accepted Answer · 2011-05-18T11:19:00

Edit: See DateTime.Parse, int.Parse and DateTime.AddDays:
DateTime.AddDays: http://msdn.microsoft.com/en-us/library/system.datetime.adddays.aspx[^]

DateTime.Parse: http://msdn.microsoft.com/en-us/library/1k1skd40.aspx[^]

int.Parse: http://msdn.microsoft.com/en-us/library/system.int32.parse.aspx[^]

Perhaps try something like this: - I know C# but it should be fairly simple to convert to VB ;)

C#

TextBox DateBox;
TextBox DaysBox;

DateTime AddDays(string DateString, string DaysString)
{
    DateTime TheDate = DateTime.Parse(DateString);
    int Days = int.Parse(DaysString);
    
    return TheDate.AddDays((double)Days);
}

//Event method called by both DateBox text changed event and DaysBox text changed event.
void TextChanged(object sender, EventArgs e)
{
    DateTime Result = AddDays(DateBox.Text, DaysBox.Text);
    MessageBox.Show(Result.ToString());
}

Hope this helps,

Ed :)