5 Errors - C# Discussion Boards

16-Jul-07 3:41

string seth;
     bool anm, beh, st, en;
     StreamReader a = new StreamReader(".\\Format.cfg");
     while (a.Peek != -1)
     {
         seth = a.ReadLine;
         if (seth.Trim.Length != 0)
         {
             if (seth.Trim = "ABC")
             {
                 anm = true;
             }
             else if (seth.Trim = "XYZ")
             {
                 st = true;
             }
         }

     }

these codes look pretty but have 5 errors
1.Operator '!=' cannot be applied to operands of type 'method group' and 'int'
2.Cannot convert method group 'ReadLine' to non-delegate type 'string'. Did you intend to invoke the method?
3.'string.Trim(params char[])' is a 'method', which is not valid in the given context
4.Cannot assign to 'Trim' because it is a 'method group'
5.Cannot assign to 'Trim' because it is a 'method group'

i tried lots of times and did as i could

i hope here is someone who can solve it
thanks

Pete O'Hanlon16-Jul-07 4:02

Pete O'Hanlon

16-Jul-07 4:02

The bold items are the one's I've added/changed.

string seth;
bool anm, beh, st, en;
StreamReader a = new StreamReader(".\\Format.cfg");
while (a.Peek() != -1)
{
seth = a.ReadLine();
if (seth.Trim().Length != 0)
{
if (seth.Trim() == "ABC")
{
anm = true;
}
else if (seth.Trim() == "XYZ")
{
st = true;
}
}
}

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mav.northwind16-Jul-07 5:04

mav.northwind

16-Jul-07 5:04

Could it be that you're usually using VB? Roll eyes | :rolleyes:

In C# you have to write '(' and ')' even for an empty method parameter list (Peek, ReadLine, Trim).
And '==' is the comparison for equality whereas '=' is reserved for assignments only.

Regards,
mav

--
Black holes are the places where God divided by 0...

Re: 5 Errors [modified]

Xmen Real 16-Jul-07 6:34

16-Jul-07 6:34

yep, first i used VB but now i m new in C#
anyway thanks buddies but it still have 4 errors

string seth;
           bool anm, beh, st, en;
           StreamReader a = new StreamReader(".\\Format.cfg");
           while (a.Peek() != -1)
           {
               seth = a.ReadLine();
               if (seth.Trim().Length != 0)
               {
                   if (seth.Trim() = "ABC")
                   {
                       anm = true;
                   }
                   else if (seth.Trim() = "XYZ")
                   {
                       st = true;
                   }
               }
           }

1.The left-hand side of an assignment must be a variable, property or indexer
2.Cannot implicitly convert type 'string' to 'bool'
3.The left-hand side of an assignment must be a variable, property or indexer
4.Cannot implicitly convert type 'string' to 'bool'

Dan Neely16-Jul-07 6:49

Dan Neely

16-Jul-07 6:49

= is the assignment operator. == is the comparison operator.

--
You have to explain to them [VB coders] what you mean by "typed". their first response is likely to be something like, "Of course my code is typed. Do you think i magically project it onto the screen with the power of my mind?" --- John Simmons / outlaw programmer

Xmen Real 16-Jul-07 18:02

16-Jul-07 18:02

hehe, its working, thanks Wink | ;)

Xmen Real 16-Jul-07 18:39

16-Jul-07 18:39

i have a new question that how can i compare bool
for instance

bool as;
if (as=true);
{
}

if i use == instead of = then its giving error

thats my question...

Pete O'Hanlon17-Jul-07 10:49

Pete O'Hanlon

17-Jul-07 10:49

You compare bools by using the == operator. The = operator is the assignment operator, e.g. a = b means a gets the value of b. The == operator is the equality operator.

If you looked at my earlier answer, you would see that I amended your code to use == instead of = in all the places you had the wrong one (Unfortunately, the bold option didn't seem to show them too well).

Please visit http://www.readytogiveup.com/ and do something special today.
Deja View - the feeling that you've seen this post before.

Xmen Real 17-Jul-07 14:52

Laod a Method from a DLL dynamically

17-Jul-07 14:52

yep i tried first == but it gave error, then i tried with = but it assign it to true
then i post here and when noone reply here then i thought i should do that myself and i read error but all bounce on me,but i read read read
and got the problem, that was i assign 3 bools in a line
my problem solved....!!

Becoming Programmer...

thenewbee16-Jul-07 3:09

thenewbee

16-Jul-07 3:09

Hi ALL,
How is it possible to Load a DLL at run time.. . And then load a method from that DLL .. .

SHould i use Reflection concept here ... plz explain???

Re: Laod a Method from a DLL dynamically

originSH16-Jul-07 4:23

originSH

16-Jul-07 4:23

http://www.google.co.uk/search?hl=en&q=c%23+dynamically+load+method&meta=[^]

Was opening up google and typing your keywords in really that hard?

Re: Laod a Method from a DLL dynamically

thenewbee16-Jul-07 18:55

thenewbee

16-Jul-07 18:55

Thanks for the help .. .
I found my answer in
http://my.execpc.com/~gopalan/dotnet/reflection.html[^]

hmm . .. I searched for the following in GOOGLE
- > dynamically import dll in C#
- > call a method dynamically in C#

but your search string was "APT"
- > c# dynamically load method

Re: Laod a Method from a DLL dynamically

originSH17-Jul-07 0:12

originSH

17-Jul-07 0:12

It can be a pain getting the right search keywords. I always put C# first as it's the most relivent keyword.

Download files from FTP

Sallu174916-Jul-07 2:31

Sallu1749

16-Jul-07 2:31

I want to download all files from a certain FTP folder to a folder on local machine. I am using C#.NET. Is there anyone to give me any idea how to do that? If someone have code to do that, plz upload it.

Thanks

Le centriste16-Jul-07 2:44

Le centriste

16-Jul-07 2:44

Here is a link that will help you: http://www.codeproject.com/cs/internet/SimpleFTPDemo.asp[^]

-----

If atheism is a religion, then not collecting stamps is a hobby. -- Unknown

Sallu174916-Jul-07 3:42

Sallu1749

16-Jul-07 3:42

the link contains a demo which uses the FTPWebRequest class. I want to build a console application not a web application. Can anyone else tell me how to implement this functionality in a window console application usin C#

Le centriste16-Jul-07 3:45

Le centriste

16-Jul-07 3:45

This is just an example that shows you how to use FtpWebRequest class. This class does not require the use of a Web application.

-----

If atheism is a religion, then not collecting stamps is a hobby. -- Unknown