TextIO Class Initialization Issue

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Posted on by D365_FO_Technical_Te

126

Hello everyone,

I am using TextIO Class in my code, but when i am debugging it - on initializing the class i am getting Null Value. can anyone please help me how can i initialize it. I am using below code. I have used same piece of code on AX , there it's working fine. But on D365 I am facing issue.

FilePath    _filePath;   //_filePath is my Global Variable

Public void ABC()
{
    TextIo    textIo;
    FileName  fileName;
    str       getFileName_Path;
    #File
    ;

    fileName = strfmt("barcode_%1.prn", curUserId());
    _filePath = InventParameter::find().FilePath;
    getFileName_Path =   _filePath +  fileName;
    
    //I have used both below code, but still i am receiving null value in debugger.
    //textIo = new TextIO(getFileName_Path, #IO_Write, 65001)
      textIo = new TextIO(getFileName_Path, #IO_Write)
}

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Martin Dráb 240,290 Most Valuable Professional on at

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First of all, are you sure you need to create a file on the given AOS at all? Don't you want to use TextStreamIo, for example, instead?

If you have to, make sure that the location exists and it's writable. Letting users to configure the path doesn't make a good sense to me - I recommend simply using the Temp folder (e.g. WinApiServer::getTempPath()). The fact that you want to configure it suggests that you want to use as a data storage, which would be a bug in the design. There is more than one AOS and they can be added or deleted as needed.

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Anton Venter 21,080 Super User 2026 Season 2 on at

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Why not change your code to use the .NET MemoryStream class? Then you don't have to write anything to a physical file.

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D365_FO_Technical_Te 126 on at

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Thanks Anton & Martin for your response.

You were right Martin, it was a permission issue. I changed the path which was writable, and its started working.

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