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Dynamics 365 Community / Forums / Finance | Project Operations, Human Resources, ... / An expression issue in...
Finance | Project Operations, Human Resources, ...
Suggested Answer

An expression issue in SSRS report : : Unidentifiable substring 'First' in expression

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Posted on by safa weili 5

8308.expression.png

I am trying to use this expression   {="Libellé :" +First(Fields!DEMLibelleprod.Value, "headercoupe")}, but I am getting this error when deploying the report.

Severity Code Description Project File Line Suppression State
Error Path: [AxReport/DEMPrintProdReport/Designs/DEMReport/Expression]:DEMReport: Unidentifiable substring 'First' in expression. The parser reported error message: Syntax error. 

please help,thnaks in advance.

I have the same question (0)
  • Suggested answer
    GirishS Profile Picture
    GirishS 27,827 Moderator on at

    Hi safa weili,

    You need to use "&" to append the string value. Try the bellow expression.

    ="Libellé :" & First(Fields!DEMLibelleprod.Value, "headercoupe")

    Thanks,

    Girish S.

  • safa weili Profile Picture
    safa weili 5 on at

    i used it but the problem persists

  • GirishS Profile Picture
    GirishS 27,827 Moderator on at

    Can you show me the screenshot of the expression?

    Also, where you are adding? I mean in the header or inside the tablix?

    Thanks,

    Girish S.

  • GirishS Profile Picture
    GirishS 27,827 Moderator on at

    Also, if you have used the same expression using "+" in other text boxes. Change that and also check.

    Thanks,

    Girish S.

  • Suggested answer
    Bharani Preetham Peraka Profile Picture
    Bharani Preetham Pe... 3,634 Moderator on at

    Hi Safa Weili,

    As Girish suggested you should use & not + for concatenation of strings in ssrs report.

    Adding to Girish, can you remove those extra braces in that formula? It should look like below.

    ="Libelle:"&First(Fields!DEMLibelleprod.Value, "headercoupe")

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