Convert Srting to date format.

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1.80/5 (2 votes)

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I have two textboxes one contains date from database and another is to append time into it.

C#

TextBox Date = new TextBox();
                Date.Text = "11/05/2015"; //dd/MM/yyyy
                TextBox txt1 = new TextBox();
                txt1.Text = "12:00:00";

I have Concatenated the two textboxes to generate standard datetime string as follows.

C#

var str1 = Date.Text+'.'+txt1.Text;

and I have checked that sting is returning the same value i.e. "11/05/2015 12:00:00"

Now I'm converting the string value to datetime.
I'm doing like this.

C#

var d1 = DateTime.ParseExact(str1, "dd/MM/yyyy HH:mm:ss", CultureInfo.InvariantCulture);
var t1 = d1.ToString("MM/dd/yyyy HH:mm:ss");

But every time it shows the error "string was not recognized as a valid DateTime".

Posted 21-May-15 3:40am

arunsiddhu1992

Updated 21-May-15 4:06am

Leo Chapiro

v3

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Leo Chapiro · Accepted Answer · 2015-05-21T04:02:00

Solution 1

This works:

C#

string str = "11/05/2015 12:00:00";
var d1 = DateTime.ParseExact(str, "dd/MM/yyyy HH:mm:ss", CultureInfo.InvariantCulture);

This works as well:

C#

string str = "11/05/2015 12:00:00";
var d1 = DateTime.ParseExact(str, "dd/MM/yyyy HH:mm:ss",
null);

You can test both of them here:
http://csharppad.com/[^]

Posted 21-May-15 4:02am

Leo Chapiro

Updated 21-May-15 4:04am

v2

Comments

arunsiddhu1992 22-May-15 1:58am

Thanks.
The problem was in database value.
It was 11/52015.
That's why I encountered error.
Thanks for the help.

Peter Leow · Accepted Answer · 2015-05-21T04:07:00

Solution 2

Change this:

var str1 = Date.Text+' '+txt1.Text;

Posted 21-May-15 4:07am

Peter Leow

Comments

arunsiddhu1992 22-May-15 1:57am

yes I got it it was adding the dot(). to.
Thanks for the help.