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You think the future looks good for VB.NET. All I get from forums and people are that making the switch to C# promises more on the long run. How about you, how did you learn to program? School or just self learning?
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Well, that was where I was unsure if you were just doing it for a project, or for a career. As a career, I personally don't know if any .NET language is going to be useful in 5-10 years. A previous poster responded that C# would be more useful, because at least it's syntactically similar to other C languages, I agree there to some extent.
I learned mostly on my own, the only classes I took in college were in C++ and Java, but I used C# and PHP much more in my career. Learning a new language isn't that difficult, once you understand the concepts of programming and have been pretty advanced in one. For example, I never took a class in VB, but I've fixed coworkers code that uses it, because it was close enough to C# for me. I've found it beneficial to remain personally language agnostic.
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So once you grasped the basics you're able to just jump from language to language with ease? Do you recommend PDFs or purchasing actual books? I have to get my A+ certification first, but this is what I'm interested in most.
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I wouldn't say jump around "with ease" but yes, grasping the basics, and advanced parts, of programming will help you learn or at least adapt to new languages. As far as materials. I have found that I remember more and can look up stuff faster in a printed book, rather than pdf, but that's just choice. I've only read one book in pdf format in my life, so don't take my view on that as the ultimate truth.
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The information you've given me has been great. I'll go with PDF books for now and when I can afford them then I'll research some books to see what the best choice would be.
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I would like to know how to pass values to a C# 2008 console application that my small company obtained from a contract shop.
My goal is to be able to step though (debug) the code so that I can understand the application.
Right now I have been able to compile the application and set break points to see where the problem lies. The application starts in the main method and stops executing when it is looking for 2 parameters that need to be passed.
Right now to run the application I click on a windows command file that looks like the following:
Start .\samclt\bin\Debug\samcl.exe encrypted_value https:
The first value is 'encrypted_value' is an encrypted value, the second parameter is used to call a webservice named testWebService and the values of 1 and ITEM are passed to the web service.
Due to what I stated above, I have the following two questions:
1. When I want to start the C# application from a debug mode, how can I pass the two required parameters to the application and let the application 'see' parameter values and have access to the values?
2. When I start the C# application from the command prompt, how can I pass the two required parameters to the application and let the application 'see' parameter values and have access to the values?
modified 24-Aug-12 12:29pm.
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Project properties->Debug-> Command line arguments.
Why is common sense not common?
Never argue with an idiot. They will drag you down to their level where they are an expert.
Sometimes it takes a lot of work to be lazy
Please stand in front of my pistol, smile and wait for the flash - JSOP 2012
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Wes has shown how to do it in the debugger. To do it command prompt is much like you already have after the start command:
samcl.exe encrypted_value https://test/test/testWebService 1 ITEM
The general rule for any application is:
executable param1 param2 ... paramN
Any parameters that contain spaces are required to be encoded within double quotes. By convention any parameter with a leading / or - character is deemed to be an option letter or word, applied to the next parameter in order. There is probably an MSDN page that explains this in more detail but I do not have a link to it.
One of these days I'm going to think of a really clever signature.
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From the other side (in your app), the parameters are stored in a string array called args passed to your static Main:
static void Main(string[] args)
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Hello Everyone,
Actually I’ve created SQL Table column name with special character like @#$$%Id%^$# and I have created insert query to inserting value such as:
Insert into MyTable ([@#$$%Id%^$#]) values (@@#$$%Id%^$#)
After that passing parameter value as:
SqlCommand cmd = new SqlCommand (“Insert into MyTable ([@#$$%Id%^$#]) values (@@#$$%Id%^$#) ”);
cmd.Parameters.Add(new SqlParameter (“(@@#$$%Id%^$#”, ParameterValue))
After Executing this Code I got ‘Must Declare Scalar Variable @’
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OK, so your column type has to be some char type, right? Enclose the value in double quotes and you should be good. Unless, of course, the column type of "@#$$%Id%^$#" is something other than a char type??
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Ankitaaguggi wrote: Actually I’ve created SQL Table column name with special character like @#$$%Id%^$#
Bad idea - as you have discovered.
If relevant note that database columns should NOT be used as display values. Thus there should be no reason to include anything but alphanumerics and underscores.
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In a C# desktop 2010 application that I need to write, I will be calling a web service. I have been using batch command prompts to save the output to a text file.
The commands I have been running in the dos window look like the following: cmd1 > file1. Basically the output shows in a dos window and > makes the data displayed in the dos window go to the standard ouput.
My questions are the following:
1. Since I have been using the redirection symbol, the web service must be writing the output to 'standard output' location. However I do not know what the 'standard output' is in a C# 2010 and how to access the 'standard output'. Thus can you tell me what the standard output is and how to access it in a C# 2010 application?
2. Can you tell me how to have information not be displayed in a dos popup window and go to eh location i specify?
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Are you writing a console application?
Then Console.Out is your standard output.
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sc steinhayse wrote: the web service must be writing the output to 'standard output'
Wrong. The web service has no access to the client streams at all. It's your "cmd1" executable that is writing the data to standard output, not the web service.
sc steinhayse wrote: 2. Can you tell me how to have information not be displayed in a dos popup
window and go to eh location i specify?
That depends on your "cmd1" code. All you need to do is grab a path specified on the command line, open the file specified by the path, and write the data to that instead of outputting it to the console. An example of your command line would be:
cmd1 C:\somepath\somefile.txt
If you don't know how to get command line parameters or open a file and write to it, you've got some research to do on the basics of C# and the .NET Framework.
Such as this[^]
and this[^]
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I do not know how to make the C# application use the command line arguments I pass to it.
My command line looks like the following:
Start .\samclt\bin\Debug\samcl.exe encrypted_value https:
I know the application is not using the parameters that appear after the exe by stepping though the code.
Thus can can you tell me how to make the application see the parameters I am trying to pass to it?
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I already showed you in the links at the bottom of my previous post.
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Hello Sir/Mam
I'm trying connect sql server 2000 in windows service with other system on same network.
there are 4 system connected without any problem. But on other 4 system, it is giving error
on connection open while starting windows service. The error is: "the service on local computer started and then stopped some services stop automatically" etc. Same Connection string working in web service
without any error. But giving problem in Window Service. Is there any Configuration setting of that server or sql server 2000. Any help will be highly appreciated.........
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You've asked this in at least one other forum. Please, just use one forum per question.
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can you use connection pool size 1 to 5 etc in your connection string
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In a C# 2010 application that I will be writing, I am trying to decide if I should use regular expression or use a parsing routine to get to the nodes of an xml file I will be working with.
The xml file I receive is not to update my database locally. My response will update the database on the remote site.
Basically I will be obtaining an xml file from a remote web service. When I look at all the results that this web service gives to me, I can uniquely identify patterns in the data that would be appropirate for regular expressions.
However there will be times when I obtain a list of key values that occurs 1 to 500 times. Thus i am wondering if this type of parsing is possible using regular expressions. If so, how would I do that type of parsing with regular expressions?
Also, can you tell me and/or point me to a reference that will tell me how to accomplish this task, using a built in xml parser or code that shows how to parse xml?
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Hello everyone! I am a new in C# and was trying to access a class from another.
I have created the file Cliente.cs below:
class Cliente
{
public string nome;
public int codigo;
}
Afterwards I have created the file TestaCliente.cs with this code:
class TestaCliente
{
static void Main()
{
Cliente c1 = new Cliente();
c1.nome = "Rafael Consentino";
c1.codigo = 1;
Cliente c2 = new Cliente();
c2.nome = "Jonas Hirata";
c2.codigo = 2;
System.Console.WriteLine(c1.nome);
System.Console.WriteLine(c1.codigo);
System.Console.WriteLine(c2.nome);
System.Console.WriteLine(c2.codigo);
}
}
I have tried to compile the file TestaCliente.cs via command prompt with "csc TestaCliente.cs" and the following error message appears :
Microsoft (R) Visual C# 2010 Compiler version 4.0.30319.1
Copyright (C) Microsoft Corporation. All rights reserved.
TestaCliente.cs(6,4): error CS0246: The type or namespace name 'Cliente' could
not be found (are you missing a using directive or an assembly
reference?)
TestaCliente.cs(6,21): error CS0246: The type or namespace name 'Cliente' could
not be found (are you missing a using directive or an assembly
reference?)
TestaCliente.cs(10,4): error CS0246: The type or namespace name 'Cliente' could
not be found (are you missing a using directive or an assembly
reference?)
TestaCliente.cs(10,21): error CS0246: The type or namespace name 'Cliente' could
not be found (are you missing a using directive or an assembly
reference?)
Obs.:The files are in the same folder.
What am I doing wrong?
Thank you
modified 30-Aug-12 6:32am.
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jamesfrj wrote: What am I doing wrong?
This:
jamesfrj wrote: tried to compile .. via command prompt
Why would you ever do that? It's just going to cause trouble.
But it's possible, of course. One option is to compile "*.cs" (ie all .cs files in the folder).
For more info, see: Working with the C# 2.0 Command Line Compiler[^]
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