473,799 Members | 3,245 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

"Conditiona l" attribute confusion

I use VS2005 with framework 2.0 and I just found a behavior I consider odd.
Here is the code that illustrates th eproblem:

[Conditional("DE BUG")]
public static void MethodA()
{
MethodB()
}

#if DEBUG
public static void MethodB()
{
....
}
#endif

my expectation was that this code will compile perfectly when DEBUG
condition is defined as well as when it is undefined. Apparently, that is
not the case. When compiling with "DEBUG" undefined, compiler generates
error: "The name MethodB does not exist in current context."

This is what Microsoft help says about ConditionalAttr ibute class:
"Indicates to compilers that a method call or attribute should be ignored
unless a specified conditional compilation symbol is defined". The
conclusion from this is that MethodA from my example should not be compiled.
The reality is that the nethod is compiled - otherwise the error would not
have been reported.

Is there something I am missing about "Conditiona l" attribute and how the
compiler is working or it something .NET framework documentation or/and C#
compiler are missing ?

Thank you.
Nov 16 '06 #1
1 2311
Well, 2 minutes after I submitted this post I found the answer to my
question. Certainly it was me missing the point. "Conditiona l" attribute
informs compiler to ignore the call to the method but not to ignore the
method during the compilation.

My apology for posting something that I should not have.


>I use VS2005 with framework 2.0 and I just found a behavior I consider odd.
Here is the code that illustrates th eproblem:

[Conditional("DE BUG")]
public static void MethodA()
{
MethodB()
}

#if DEBUG
public static void MethodB()
{
...
}
#endif

my expectation was that this code will compile perfectly when DEBUG
condition is defined as well as when it is undefined. Apparently, that is
not the case. When compiling with "DEBUG" undefined, compiler generates
error: "The name MethodB does not exist in current context."

This is what Microsoft help says about ConditionalAttr ibute class:
"Indicates to compilers that a method call or attribute should be ignored
unless a specified conditional compilation symbol is defined". The
conclusion from this is that MethodA from my example should not be
compiled. The reality is that the nethod is compiled - otherwise the
error would not have been reported.

Is there something I am missing about "Conditiona l" attribute and how the
compiler is working or it something .NET framework documentation or/and C#
compiler are missing ?

Thank you.


Nov 16 '06 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

25
3748
by: delerious | last post by:
I see some code examples like this: <DIV onmouseover="this.style.background='blue'"> and other code examples like this: <DIV onmouseover="javascript:this.style.background='blue'"> Which way is more proper? Or are both ways perfectly fine? Are there any specifications that discuss when "javascript:" should be put in front of code?
6
5513
by: Allan Koch | last post by:
Dear NG, I would like to format a record in a subform, dependent on a value in one field. If one field in the record I show in a subform (datasheet view) is true I like to view that particular row in green, all other rows just as they are normal. Is that possible ? regards Allan
10
28669
by: John Smith | last post by:
After reading C# documentation the Conditional attribute seemed the way to go, but after inspecting the IL it seems those methods are still there and I imagine the CLR removes them. Using #if DEBUG means the code does not even reach the IL when compiling in release mode. Is there any benefit to using the Conditional Attribute? Am I right in thinking there will small performance overhead using over #if DEBUG.
3
8422
by: ARZ | last post by:
Hi How do I include DLLs based on a condition. Eg., there are 2 DLLs 'Oracle.dll' and 'SQL.dll'. I need to include ANYONE of the DLLs based on a value. Is it possile in C# Thanks in advance ARZ
2
1465
by: JC | last post by:
I am trying to conditionally print a field on a report based on the value of another field in the query that the report is based on. In the Control Source for SerialB I have typed: = IIF(nz(QtyB) > 0," ",SerialB) On preview of the report I get #Error in that field every time QtyB is NOT greater than 0. If I change the code to read: = IIF(nz(QtyB) > 0," ","9") the blank shows up where it should and the 9 shows up where it should.
7
14123
by: What-A-Tool | last post by:
In the following code, "catch" is underlined in blue, and the error "the variable fx is declared but never used" is displayed when I mouse hover over it. Am I doing something wrong, or do I just ignore it? private void btnCalc_Click(object sender, System.EventArgs e) {
1
12236
by: cyningeston | last post by:
OS: WinXP Pro, VB/ASP/ADO.NET I'm building a web-based supplier management application. For each supplier we are required by the FDA to track certain documents. I've managed to pull them from Access into a Gridview (Gridview1), in which I have AutoGenerateEditButton set to True. What I want is this: when a user clicks "Edit" on a line and it goes to edit mode, I want to grab the supplier's category (4th column of the grid, named...
1
1852
by: Christian Welzel | last post by:
Hi there! Currently i'm thinking about how to solve this problem: if (t3lib_div::int_from_ver(phpversion())<5000000) { // php4 class tx_lib_object extends tx_lib_selfAwareness {...} // } else { // php5
1
2611
by: veaux | last post by:
Question deals with linking tables in queries. I'm not a code writer so use the GUI for all my queries. Table 1 - Master Table 2 - Sub1 Table 3 - Sub 2 All 3 tables have the same key field. I'm trying to find all the records that are in "Master", that are not
0
9687
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
9541
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
10251
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
0
9072
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
1
7565
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
6805
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
5463
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
0
5585
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
3
2938
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.