How to add date in C# project.

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Hi,

Actually i used Datetime & date function in my solution. But i want to give some conditions to date function. I retrieve saved date from database now i want to add 1day in that day.e.g. saved date is 2015-02-04 & if i add one day in that date then logically it will 2015-02-05. i want the same. but it show error like
Operator + can not be applied to operand of type system.datetime.

Posted 6-Feb-15 20:26pm

Member 11221185

Updated 6-Feb-15 20:31pm

v2

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Sergey Alexandrovich Kryukov 7-Feb-15 3:26am

What would be the meaning of such operand? You can do subtraction, of course...
—SA

Member 11221185 7-Feb-15 5:22am

@SA i unable to subtract 1 day.

3 solutions

Solution 1

Use DateTime.AddDays Method[^]

Posted 6-Feb-15 20:40pm

Peter Leow

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Rajesh waran 7-Feb-15 2:59am

5*

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Kochathu Thomas Tinu · Accepted Answer · 2015-02-07T18:44:00

Solution 3

DateTime currentdate = Convert.ToDateTime(DateTime.Now.ToShortDateString());
DateTime newdate;
newdate = currentdate.AddDays(1);
TextBox1.Text = newdate.ToString("dd/MM/yyyy");

Posted 7-Feb-15 18:44pm

Kochathu Thomas Tinu

Afzaal Ahmad Zeeshan · Accepted Answer · 2015-02-06T21:16:00

That would be because you might be applying the + operator to the dateTime object. Well the + operator has been overloaded for using with DateTime objects, but that is to add two different dateTime objects, like this one

C#

var date1 = new DateTime();
var date2 = new DateTime();

var newDate = date1 + date2; // valid code

The operator overloading can be viewed and learnt more about here on MSDN[^].

What you need is a function of the DateTime object, known as AddDays(), which accepts double value for you to add the days to your current DateTime instance.

For example the following code,

C#

var dateTime = new DateTime();
dateTime.AddDays(1); // adds one day to the current instance.

For more, please go through this MSDN link[^].