Iterate through the class - C# Discussion Boards

2-Sep-07 8:35

Any reason you want a member variable, and NOT define it as such ?

One thing you can do is define an anonymous method for an event, inside this method. The variables inside the method are then scoped to that code. So, if you do this:

StreamReader SR = new StreamReader(@"C:\test.txt");

myTimer.Tick += new delegate()
{
SR.Read();
}

Assuming that Read is a parameterless method on the streamreader, this would work.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Code execution time

Heba Ghoz2-Sep-07 7:38

Heba Ghoz

2-Sep-07 7:38

how to calculate the code execution time in nanoseconds

Guffa2-Sep-07 8:34

Guffa

2-Sep-07 8:34

You can use the System.Diagnosics.Stopwatch class.

---
single minded; short sighted; long gone;

Paul Conrad2-Sep-07 11:04

Paul Conrad

2-Sep-07 11:04

Guffa wrote:
use the System.Diagnosics.Stopwatch class

But the OP wanted in nanoseconds. Only way I think that can be achieved is through an unmanaged .dll using the rdtsc instruction...I've got one around here, maybe I should write out a quick article on it Smile | :)

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

Guffa3-Sep-07 0:41

Guffa

3-Sep-07 0:41

Right, the StopWatch class only gives microsecond resolution.

I wonder if the OP really needs nanosecond resolution, or if he meant microseconds...

---
single minded; short sighted; long gone;

Iterate through the class

Paul Conrad3-Sep-07 5:46

Paul Conrad

3-Sep-07 5:46

Guffa wrote:
I wonder if the OP really needs nanosecond resolution

I wondered the same thing. I find the .dll utility class that I created that works with rdtsc as being a bit too granular, but it's there if I need to get that fine of a resolution.

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

d97kti2-Sep-07 7:36

d97kti

2-Sep-07 7:36

I have a problem:

I have a class that contains some classes that have some basic types in it, something like this:

class mainClass
{
class oneType
{
public string name = "The One Name";
public string adress = "The One Adress";
public bool isMoving = true;
}
class twoType
{
public string name = "The Two Name";
public string adress = "The Two Adress";
public bool isMoving = false;
}
}

Can someone tell me how can I iterate through the mainClass and take out values for each class in it (class oneType and twoType). I wont to use foreach loop to do some operation on the values in each class. It's maybe smarter to use some other type to describe oneType and twoType.
Please answer, it's urgent. Thanks!

d97kti

Re: Iterate through the class

Christian Graus2-Sep-07 7:38

Re: Iterate through the class

2-Sep-07 7:38

I'd create a base class for all these classes, then create a list of classes. Of course, you need a list of class *instances*, you can't iterate over the classes themselves, they don't actually exist anywhere ( you have a prototype, but no instance of any class to contain any values )

d97kti wrote:
Please answer, it's urgent.

Of course it is....

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

d97kti2-Sep-07 8:53

d97kti

2-Sep-07 8:53

Thanks, i 'll try something out. I can't get it to work just fine. I will probably use arrays instead. But thanks any way.

Chears

How to hide caption and still able to size the window?

AghaKhan2-Sep-07 7:20

AghaKhan

2-Sep-07 7:20

I am writing an app where I want to use a round rectangle window with no caption, but still able to size it. I tried to send message WM_SIZE, but no success. Any Idea?
We can set the region to set the shape of the window, but after changing to new size I think we have to call set region again. Any feedback will be very much appreciated.

agha.khan@hotmail.com
best regards
Sleepy | :zzz:

:->

Agha Khan

How to hide caption and still able to size the window?

AghaKhan2-Sep-07 7:16

AghaKhan

2-Sep-07 7:16

Agha Khan

Re: How to hide caption and still able to size the window?

Christian Graus2-Sep-07 7:25

Re: How to hide caption and still able to size the window?

2-Sep-07 7:25

Don't ask twice.

You'd do it yourself, just capture the mouse when it's clicked on the edge, and resize in your code as your mouse moves.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

AghaKhan2-Sep-07 10:21

AghaKhan

2-Sep-07 10:21

Dear Christian Graus:
I am not sure how I asked twice? It was not my attention.
When we want to remove the caption we need to remove sizeable attribute. After that we will never receive any message or event that tells us that mouse is on edge. Perhaps you have something else in your mind.
Do you any other way to remove caption?
I worked on Fortran while back. I am not sure but you may still ask me any question on FORTRAN. I uesed to be good, but I do not know yet. Frown | :-(

Best regards
Agha Khan
agha.khan@hotmail.com

Agha Khan

Re: How to hide caption and still able to size the window?

Christian Graus2-Sep-07 11:49

2-Sep-07 11:49

AghaKhan wrote:
I am not sure how I asked twice? It was not my attention.

Your question was posted twice.

AghaKhan wrote:
. After that we will never receive any message or event that tells us that mouse is on edge.

That's right, you need to track this yourself, from the mouse position.

AghaKhan wrote:
I worked on Fortran while back.

I never have, you're responding to my sig block, it's not a comment from me to you.

Are you using C# ? I suddenly wonder if you're in the wrong forum, and using C++

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Save

Assaf822-Sep-07 6:28

2-Sep-07 6:28

Hello
i don't know why i can't save this record in the database
there is no error and every thing is fine but i can't see the new data in the database
this is the code:
"con.Open();
str3 = "INSERT INTO [CreditCard].[dbo].[CreditCardInfo] ([CreditTypeID],[CreditcardNumber],[CustomerName],[BankID],[ExpiryDate],[EntryDate],[MachineTypeID]) VALUES((" + crId + "),(" + crNum + "),('" + Name + "'),(" + bnkId + "),('" + dtm + "'),('" + now + "'),(" + mId + "))";
cmd = new SqlCommand(str3, con);

adap.InsertCommand = cmd;"
i verify the insert statment in the SQL and it save the data

any help ???

Thanks in advance

Assaf

Christian Graus2-Sep-07 6:44

2-Sep-07 6:44

If you grab the SQL from the debugger and paste it into your database, what happens ?

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Assaf822-Sep-07 6:48

2-Sep-07 6:48

the data is inserted in the table

Assaf

Christian Graus2-Sep-07 6:57

2-Sep-07 6:57

What if you check the DB after running the code, might the issue be that the data has changed and your app is not refreshing it's data source ?

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Assaf822-Sep-07 7:01

2-Sep-07 7:01

I checked but there is no change

Assaf

Christian Graus2-Sep-07 7:07

2-Sep-07 7:07

Then your code that passes the SQL to the data base is plainly where the problem is. You can check when you call the data layer as to how many rows were affected, that's a good place to start.

Using stored procs is another option worth exploring. Depending on where your data comes from, your current code could have you wide open for injection attacks.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Assaf822-Sep-07 7:13

2-Sep-07 7:13

The problem is when i execute the code no row is affected un the database
but when i take the insert statment from the watch and execute it in the SQL i can saw that one row is affected
so i wonder do from the code.

Assaf

Christian Graus2-Sep-07 7:24

2-Sep-07 7:24

Then your SQL is fine, and your code to call the database is broken. As I said.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Assaf822-Sep-07 7:28

2-Sep-07 7:28

you mean the connection string but i use it before to retreive data from the same database and it succeed

Assaf

Christian Graus2-Sep-07 7:32