FileExists and network location

[Srm27]

Hi,

Happiness in programming is shorted lived, as least at my level of still learning with every new project.

I have used FileExists() to see if a directory is local on the PC, works as it says on the tin, happy man, the problem is when it comes to a network drive.

The network location is \\\\node1\\Prod_Test\\TestDataSource\\Rel\\Test_Folder\\

This will not find the Test_Folder even without the “\\” at the end.

Also CNVFolderExists (Network_Folder,Test_Folder_01, &Net_Exists); will not work with

sprintf(Network_Folder," \\\\node1\\Prod_Test\\TestDataSource\\Rel");

and Test_Folder_01,\\Test_Folder\\.

I have tried searching but nothing is jumping out at me as to what might be going wrong.

I have no problem copying the directory from the network location to a subdirectory on my PC or from the PC to the network.

Can anyone offer assistance?

I have CVI 2012 and Windows XP.

Thanks

Simon

[Wolfgang]

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Happiness in programming is shorted lived, as least at my level of still learning with every new project.

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Hello Simon,

your sentence made me smile, but the other way round is also true It is not so difficult to reach the next sense of achievement...

Concerning your issue: I am not using FileExists from the Programmers Toolbox, but reading the help of this command reveals that the pathname of a file is not an absolute pathname...

I am using the function GetFileInfo () instead to see if a file exists, including files on the network, and so far I was happy with it...

(May be I should add that I have mapped the network drive, I don't know if this makes a difference)

[Srm27]

Wolfgang,

Thanks for that, unfortunately I had no joy as I will never know what files are in a directory I will be looking at, as the directory will also be dynamic.

I did try in for a folder on the network but with no joy on just a directory but did work for a file I do know is there

Good:

File_Pres = GetFileInfo ("\\\\node1\\Prod_Test\\TestDataSource\\Rel\\ADC004\\adcver.log", &Net_Exists);

Both the following returned 0,

File_Pres = GetFileInfo ("\\node1\\Prod_Test\\TestDataSource\\Rel\\ADC004\\", &Net_Exists);

File_Pres = GetFileInfo ("\\node1\\Prod_Test\\TestDataSource\\Rel\\ADC004", &Net_Exists);

If I put ("\\\\node1..... the two commands above will give non-fatal run-time errors.

Thanks

Simon

[Wolfgang]

Oh, I am sorry, I didn't pay attention that you were looking for a directory and not a file.

Now I have tried another approach, and it woks for me:

 result = GetFirstFile ( "n:\\xhr",0,0,0,0,0,1,new_name);

n is my network drive, xhr an existing folder. The result is 0 (that is, it does exist). If I search for "n:\\xhr23" instead, the result is -1, i.e., it does not exist which is also correct. 

[Srm27]

Wolfgang,

Thank you.

It would appear the following will do the job

sprintf(Network_Folder,"\\\\node1\\Prod_Test\\TestDataSource\\Rel\\%s",Test_Folder);

File_Pres = GetFirstFile (Network_Folder,0,0,0,0,0,1,new_name);

            if (File_Pres != 0)

                        sprintf (message, "Folder %s is not found on the network.",Test_Folder);

            else

                        sprintf (message, "Folder %s has been found on the network.",new_name);

            MessagePopup ("Ping", message);

No need for a mapped drive as node1 is already known to the PC.

Again Thanks

Simon

[Wolfgang]

Ah, I am really pleased!