AFAIK, there is no Validation Framework in Delphi, something similar to this

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AFAIK, there is no Validation Framework in Delphi, something similar to this
http://fluentvalidation.codeplex.com/

Should I (or someone else) create one (even a basic one)  ?
http://fluentvalidation.codeplex.com/

Comments

  1. Stefan GlienkeSeptember 9, 2013 at 3:11 AM

    With the current state of the Delphi language you won't be happy with any solution similar to this because:

    - anonymous method syntax is to verbose / no lambdas (see Gabrs blog article)
    - no type inference -> you end up having to specify the generic parameters often -> verbose code

    For the next version of DSharp MVVM there is a validation framework that mostly works with attributes you can define on your viewmodel/model. It is a bit similar to http://mvvmvalidation.codeplex.com/

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  2. Massimo CarocciaSeptember 9, 2013 at 3:19 AM

    You can try the D-Sharp framework with a custom binding and validation.
    SVN is here: http://delphisorcery.googlecode.com/svn/trunk

    ReplyDelete
  3. Olivier SCHWABSeptember 9, 2013 at 3:29 AM

    My mainly goal is to make validation  of forms controls in the most compact manner , a code like this

    http://pastebin.com/6A1zu7HG

    so maybe a validation framewok is not required

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  4. Stefan GlienkeSeptember 9, 2013 at 3:34 AM

    If you go the complete way of MVVM you don't apply the validation on the GUI controls but on the viewmodel/model behind it. That makes it unit testable and you can easily(*) change the GUI controls if you like.

    (*) given the GUI controls are supported by your MVVM framework.

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  5. Olivier SCHWABSeptember 9, 2013 at 3:38 AM

    I totally agree with you Stefan Glienke ; the point is that i must create verifications on a hundred of controls that I put on the first Delphi app I created one year ago, using the good ol'way of Delphi :  DB => DataSet=> DBControl  ...

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  6. Stefan GlienkeSeptember 9, 2013 at 3:50 AM

    With datasets it's usually easier to implement that using the editmask or the OnValidate event of the fields. If you are using the DevExpress controls for example I think there are additional events/properties to use on the controls.

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  7. Olivier SCHWABSeptember 9, 2013 at 3:53 AM

    OK thanks for advice Stefan Glienke , I'll have a look these dataset properties and events !

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  8. Andrea RaimondiSeptember 9, 2013 at 5:29 AM

    Jedi VCL has a component library for that.
    I've used it in the past and it's alright - not superb - but it works.

    A

    ReplyDelete
  9. Olivier SCHWABSeptember 9, 2013 at 5:37 AM

    ty Andrea Raimondi

    ReplyDelete

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