Calling Webservice with parameter value equal 1

Question

I have a strange problem with webservices. There is a WebMethod as below:

public string GenerateUrl(string webserviceId,string webmethodId, string versionId)
{
    return @"C:\" + webserviceId + @"\" + webmethodId + @"\Versions\V" + versionId + ".txt";
}

if I call it with the following parameters:

GenerateUrl("ws","wm","1");

it returns C:\\Versions\V1.txt

but if i pass versionId any other value than "1" like

GenerateUrl("ws","wm","2");

it works properly and returns C:\ws\wm\Versions\V2.txt!

From what you've written it seems to work like it should. What ist your problem? — Marco, Feb 25 '14 at 08:58
if versionId=1 regardless the values of the other parameters it works as the other parameters are empty string — Heba El-Fadly, Feb 25 '14 at 08:59
Okay I edited the question with the expected result. Sorry for being ambiguous. — Heba El-Fadly, Feb 25 '14 at 09:01
Just tested it. `GenerateUrl("ws", "wm", "1")` returned `C:\ws\wm\Versions\V1.txt`. I can't find a problem. — Marco, Feb 25 '14 at 09:03
Could you please include the code for your test cases, the ones that worked and the one that didn't please? — Saro Taşciyan, Feb 25 '14 at 09:03
so it returns \\ instead of \ . This is the problem for you? — lordkain, Feb 25 '14 at 09:04
@lordkain nope, if versionid=1 the other two parameters are received by the webmethod as empty string — Heba El-Fadly, Feb 25 '14 at 09:06
doest solve problem but use String.Format like : String.Format(@"C:\{0}\{1}\Versions\V{2}.txt", webserviceId, webmethodId, versionId); — lordkain, Feb 25 '14 at 09:07
functions works fine, i can only think that there is something different with passing first two parameters — lordkain, Feb 25 '14 at 09:08
@lordkain It works properly when I test it locally, but when I call the online service this issue occurs — Heba El-Fadly, Feb 25 '14 at 09:20

score 0 · Answer 1 · edited Jun 20 '20 at 09:12

Just to test the case i have tried the following using a Console Application as a test project:

public static string GenerateUrl(string webserviceId, string webmethodId, string versionId)
{
    return @"C:\" + webserviceId + @"\" + webmethodId + @"\Versions\V" + versionId + ".txt";
}

And called it a couple times as follows:

Console.WriteLine(GenerateUrl("ws", "wm", "1"));            
Console.WriteLine(GenerateUrl("ws", "wm", "2"));            
Console.WriteLine(GenerateUrl("ws", "wm", "3"));

As expected the results (copied from console output) are:

C:\ws\wm\Versions\V1.txt

C:\ws\wm\Versions\V2.txt

C:\ws\wm\Versions\V3.txt

In this case my final thought is the method GenerateUrl() works fine, there must be a problem the way it is being called. To see that i suggest you place a breakpoint and check for the arguments (watch) webserviceId and webmethodId each time method is called. You will probably see the values as string.Empty or "". Before executing return statement you can manipulate the value for versionId argument, set it to 1 and see if it's going to break

It works properly when I test it locally, but when I call the online service this issue occurs — Heba El-Fadly, Feb 25 '14 at 09:19
@HebaEl-Fadly How and where do you call the `WebMethod` ? sharing more code would help finding what's going wrong — Saro Taşciyan, Feb 25 '14 at 09:20
In another webservice by adding a Web Reference and make an object of it. — Heba El-Fadly, Feb 25 '14 at 09:22

Calling Webservice with parameter value equal 1

1 Answers1