Declaring DateTime variables and comparing them

[Anil Gupte]

I am using the followig code:

SqlConnection con = new SqlConnection(strcon);
con.Open();
string strSelect = "Select PaidUntil from Users where username='" + un +
"'";
SqlCommand cmd = new SqlCommand(strSelect, con);
SqlDataReader dr;
dr = cmd.ExecuteReader();
dr.Read();
DateTime PaidUntil;
PaidUntil = DateTime.Parse(dr.GetValue(0));
if (PaidUntil < DateTime.Now)
The problem is with the line where I am trying to declare the PaidUntil
local variable. I get the error:
Compiler Error Message: CS1502: The best overloaded method match for
'System.DateTime.Parse(string)' has some invalid arguments

Also, I have not got to the comparison part, but is that correct or should I
be using something like:
DateTime.Compare(PaidUntil, DateTimeNow())

Thanx for your help.

--
Anil Gupte
www.keeninc.net
www.icinema.com

[Just Me]

You need to step through the code in debug. but you should try adding
..ToString() to your dr.GetValue(0), this may help. You need to know though
that your object is not null.
"Anil Gupte" <an*******@icinema.comwrote in message
news:OZ**************@TK2MSFTNGP03.phx.gbl...

>I am using the followig code:

SqlConnection con = new SqlConnection(strcon);
con.Open();
string strSelect = "Select PaidUntil from Users where username='" + un +
"'";
SqlCommand cmd = new SqlCommand(strSelect, con);
SqlDataReader dr;
dr = cmd.ExecuteReader();
dr.Read();
DateTime PaidUntil;
PaidUntil = DateTime.Parse(dr.GetValue(0));
if (PaidUntil < DateTime.Now)
The problem is with the line where I am trying to declare the PaidUntil
local variable. I get the error:
Compiler Error Message: CS1502: The best overloaded method match for
'System.DateTime.Parse(string)' has some invalid arguments

Also, I have not got to the comparison part, but is that correct or should
I be using something like:
DateTime.Compare(PaidUntil, DateTimeNow())

Thanx for your help.

--
Anil Gupte
www.keeninc.net
www.icinema.com

[Peter Duniho]

On Sat, 29 Mar 2008 10:04:24 -0700, Anil Gupte <an*******@icinema.com
wrote:

[...]
PaidUntil = DateTime.Parse(dr.GetValue(0));
if (PaidUntil < DateTime.Now)
The problem is with the line where I am trying to declare the PaidUntil
local variable. I get the error:
Compiler Error Message: CS1502: The best overloaded method match for
'System.DateTime.Parse(string)' has some invalid arguments

You probably just need to cast the result from GetValue() to a string.
GetValue() returns an object reference, not a string.

Of course, it goes without saying that if you expect this code to work,
the actual object had better actually be a string. If not, you have some
additional conversion to do.

The comparison looks fine, but why bother asking about it until you have
problems?

Pete

[thomasnguyencom]

On Mar 29, 12:04 pm, "Anil Gupte" <[e-mail]:

I am using the followig code:

SqlConnection con = new SqlConnection(strcon);
con.Open();
string strSelect = "Select PaidUntil from Users where username='" + un +
"'";
SqlCommand cmd = new SqlCommand(strSelect, con);
SqlDataReader dr;
dr = cmd.ExecuteReader();
dr.Read();
DateTime PaidUntil;
PaidUntil = DateTime.Parse(dr.GetValue(0));
if (PaidUntil < DateTime.Now)
The problem is with the line where I am trying to declare the PaidUntil
local variable. I get the error:
Compiler Error Message: CS1502: The best overloaded method match for
'System.DateTime.Parse(string)' has some invalid arguments

Also, I have not got to the comparison part, but is that correct or should I
be using something like:
DateTime.Compare(PaidUntil, DateTimeNow())

Thanx for your help.

--
Anil Guptewww.keeninc.netwww.icinema.com

I've used:

DateTime PaidUntil = System.Convert.ToDateTime(someObject);

Also, keep in mind for comparing, the entire DateTime object contains
the both the Date and Time. Otherwise, be sure to get just the
PaidUntil.Date. I've busted myself a few times on that one.

Good luck,
-tom