|
Thanks
Steve
McLenithan
Is Bert Evil? | Homer: "Hello, operator, gimme the number for 911!"
|
|
|
|
|
Steve McLenithan wrote:
Does that mean I have to makie a bunch of overloads of this functionin C#?
Yes.
You could:
*Do lots of overloads that delegate to a single function.
*Do lots of overloads that each do the job slightly differently.
*Force people to pass null to all the values they don't use, and check for null as necessary.
Steve McLenithan wrote:
<sqlparameter(, ,="" parameterdirection.output)=""> wtf is that?
That's how VB.NET does attributes, but I thought SqlParameter was a regular class, not an attribute.
Steve McLenithan wrote:
How do I get around the IIf thing (does that mean if and only if?
In C#, this:
IIf(ExpiryDate <> "", ExpiryDate, SqlInt16.Null)
becomes this:
(ExpiryDate != "" ? ExpiryDate : SqlInt16.Null)
"Blessed are the peacemakers, for they shall be called sons of God." - Jesus
"You must be the change you wish to see in the world." - Mahatma Gandhi
|
|
|
|
|
|
|
Nothing... It's the challenge. It's the whole point of my project;)
Steve
McLenithan
Is Bert Evil? | Homer: "Hello, operator, gimme the number for 911!"
|
|
|
|
|
|
Nice very nice. What a HUGE time saver. Thanks.
Steve
McLenithan
Is Bert Evil? | Homer: "Hello, operator, gimme the number for 911!"
|
|
|
|
|
As I was practicing my C# skills I came across the code below:
int myFunc()
{
int x;
x = 42;
x++;
x += --x;
return x;
}
What is the value returned from myFunc()?
As a C++ programmer I thought: "84 of course".
But when I compiled with C#, the function returns 85.
Just to confirm, I also compiled the same code with Java and returned 85 too.
Well... Can anyone explain this? :P
modified 25-May-20 21:50pm.
|
|
|
|
|
I don't see how C++ would return 84??
int x; x = 0
x = 42; x = 42
x++; x = 43
x += --x; == x = x + (--x) == x = 43 + 42 x = 85
Is there something I'm missing??
Admittedly, I haven't done C++ in a while
Nick Seng (the programmer formerly known as Notorious SMC)
God, I pity me! - Phoncible P. Bone
|
|
|
|
|
|
hmmm..... Shouldn't it be left to right(order of operation) ?
I mean:
x = x + (--x) : At the beginning of this line x is still 43
x = x + (--x) : which would imply that this x is still 43
thus, you would get 85?
[Edit]Something just occured to me, does, --x imply that the incrementer execute before any other operators? [/Edit]
Nick Seng (the programmer formerly known as Notorious SMC)
God, I pity me! - Phoncible P. Bone
|
|
|
|
|
The -- operator has precedence over the += so it goes first makeing x 42 then the += is 42 + 42.
Maybe this is a bug in c#? -- is supposed to go first in c# also.
Maybe it doens't update x until the whole statement is done, and only returns 42 to the statement so you get 43 + 42.
|
|
|
|
|
Hi! I've posted this same question in the Microsoft C# Newsgroups and they said that the operator += has precedence over the -- because C# goes from left to right... (instead of C++ that goes from the right to the left)
So the expression:
x += --x
Would be:
x = --(x + x) = --(43 + 43) = 85
Nice... but weird :P
modified 25-May-20 21:52pm.
|
|
|
|
|
Thanks for the info. I don't know if I agree with that though. Whether you eval from left to right or right to left, you still should evaluate in the proper precedence. The c# spec says that -- has precedence over +=.
If you are interested it is in the spec section 7.2.1
|
|
|
|
|
The decrement operator ( -- ) decrements its operand by 1. The decrement operator can appear before or after its operand:
The first form is a prefix decrement operation. The result of the operation is the value of the operand after it has been decremented.
The second form is a postfix decrement operation. The result of the operation is the value of the operand before it has been decremented.
Bo Hunter
|
|
|
|
|
I receive a NullReference Exception on the entry of this [WebMethod]:
//In constructor:
FileStream fs=new FileStream(@"c:\BHQGUI\temp\Idea.mod",FileMode.Create, FileAccess.Write, FileShare.None);
//
[WebMethod]
public void scrivi(Byte[] byteArray)
{
fs.Write(byteArray,0,256);
}
called by this:
private void ArchiviaServer(object sender, EventArgs arg)
{
FileInfo fileInfo = new FileInfo("c:\\BHQGUI\\temp\\myidea.mod");
FileStream fileReadStream = fileInfo.OpenRead();
Byte[] b = new byte[256];
localhost.db myDb=new localhost.db();
while (fileReadStream.Read(b,0,b.Length) > 0)
{
myDb.scrivi(b);
}
myDb.chiudi();
myDb=null;
}
Anyone could help me? Is Byte[] a wrong type for WebService??
Please help me thanx in advance
Marco
|
|
|
|
|
Uploader wrote:
I receive a NullReference Exception on the entry of this [WebMethod]:
Thats because the filestream is null, not the byte[]. Try making the filestream static to make sure that is the problem, then figure out how you would prefer to handle it.
Hope this helps
PS: Remember a webservice is only a website with methods.
leppie::AllocCPArticle(Generic DFA State Machine for .NET);
|
|
|
|
|
thanx I made an error, because I declared the filestream as a property of the class, but in the constructor I haven't notice that I'm overwriting it.
myclass{
private Filestream fs;
myclass(){
Filestream fs=........;
}
}
BUT
using WebService my method scrivi(byte[]) doesn't work, instead it works using remote object.
Marco
|
|
|
|
|
Hello all gurus,
I just discovered that one of my tables in my MS Access DB happened to name "Module". Any simple SELECT statement to this table would crash with "E_FAIL: Unspecified Error 80004005" when I do:
...
OleDbReader rd = myOleDbCommand.ExecuteReader(...);
Currently I use:
OleDbConnection con = new OleDbConnection();
con.ConnectionString = "Provider=Microsoft.JET.OLEDB.4.0;" + "data source = " + frmModularDocsSystem.sDBFullPathName;
QUESTION:
Can I use a newer or older version of Microsoft.JET.OLEDB engine? or RDO? or Something else? to get around this weird problem. So, I don't have to rename my "Module" table. Because Changing its name will break an un-measured amount of codes in my existing applications, if that's the last solution.
Thanks a billion $ to you all
Khang Nguyen
PS: or may you have other tricks?
|
|
|
|
|
Can you but [] around the table name like you can in sql server? Try that
Select * from [Module] might work I don't have access on this machine to try it.
|
|
|
|
|
WOW! You're great! It works like a miracle. You saved me. Thanks so much.
Khang Nguyen
|
|
|
|
|
Hi,
I've started writing a program using version 1.0 of the framework, but now I would like to install version 1.1 and start using that. Do I need to do anything special with my application in order to get it to use version 1.1 of the framework instead of version 1.0 ?
Thanks
- monrobot13
|
|
|
|
|
Nope. MS Have done a good job of getting the new version to play nicely with the first. You will need a copy of the latest version of VS though, but you can upgrade for $30.
"Je pense, donc je mange." - Rene Descartes 1689 - Just before his mother put his tea on the table.
Shameless Plug - Distributed Database Transactions in .NET using COM+
|
|
|
|
|
How do you access the volume control in c#? Is there a way to do it w/o using direct x? Any help would be appreciated.
|
|
|
|
|
I'm trying to read a password from the Console and I need it to hide what is being typed. I'm using System.ReadLine() but I can't figure out how to hide what is being typed. There must be simple solution but I can't find it. Any ideas?
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
