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  • Chriztian Steinmeier 2706 posts 8117 karma points MVP 3x admin c-trib
    Feb 06, 2018 @ 12:32
    Chriztian Steinmeier
    0

    UmbracoForms Themes set error class on wrapper

    Hi all,

    I've created a new folder in the Views/Partials/Forms/Themes folder so I can add an error class on the <div class="umbraco-forms-field"> wrapper for a field (if it has a validation error of course).

    I can see I need to change something in the Form.cshtml file - but how do I check if the field being rendered has any errors?

    Update: I can see the logic for displaying the validationmessage uses Model.ShowFieldValidaton (yep - stuck with a typo'ed propertyname) and I guess that could be used; just doesn't feel quite right...

    Thing is, I'm not using Visual Studio so I can't dot-code my way and discover if there's better way. So hoping someone knows or can point me to code/docs that actually explains how to accomplish this.

    /Chriztian

  • Nik 1154 posts 4742 karma points MVP 2x c-trib
    Feb 06, 2018 @ 16:51
    Nik
    0

    Hey Chriztian,

    I think that is the way you are meant to do it, it's the only way I've seen to do it :-)

    Nik

  • Chriztian Steinmeier 2706 posts 8117 karma points MVP 3x admin c-trib
    Feb 09, 2018 @ 14:20
    Chriztian Steinmeier
    0

    Hi Nik,

    How have you seen this work? From what I can see, that part of the code renders en entire <span> that's either empty or containing the error meassage. All I need is a flag that tells me if the field is essentially "Valid" or "Invalid".

    It's absolutely necessary to be able to style anything that I can set a class on the field wrapper, indicating the state.

    /Chriztian

  • Nik 1154 posts 4742 karma points MVP 2x c-trib
    Feb 09, 2018 @ 14:33
    Nik
    0

    Hi Chriztian,

    I miss read what you were trying to do but you can relatively easily roll your own check for errors:

    All errors, as I understand it, are stored in the ViewData.ModelState

    So the checks are as follow:

    1. ViewData.ModelState.ContainsKey(##fieldname##)
    2. ViewData.ModelState[##fieldname##].Errors.Any()

    If both of these are true, then there are validation errors for a field.

    You could wrap this into a helper method so you can simply just call it each time.

    Nik

  • Chriztian Steinmeier 2706 posts 8117 karma points MVP 3x admin c-trib
    Feb 09, 2018 @ 14:35
    Chriztian Steinmeier
    0

    Hi Nik!

    Oooh - that looks promising! Thanks a bunch - I'll give it a go :-)

    /Chriztian

  • Chriztian Steinmeier 2706 posts 8117 karma points MVP 3x admin c-trib
    Feb 09, 2018 @ 16:43
    Chriztian Steinmeier
    1

    Here's what I did, which works for my purpose:

    In /Views/Partials/Forms/Themes/CustomTheme/Form.cshtml I added two functions at the bottom:

    @functions {
        public bool HasErrors(string fieldId) {
            if (ViewData.ModelState.ContainsKey(fieldId)) {
                return ViewData.ModelState[fieldId].Errors.Any();
            } else {
                return false;
            }
        }
    
        public string ValidStateClass(string fieldId) {
            var klass = "";
            if (HasErrors(fieldId)) {
                klass = "invalid";
            }
            return klass;
        }
    }
    

    So then I call the @ValidStateClass() function on the field wrapper:

    <div class="@Html.GetFormFieldWrapperClass(f.FieldTypeName) @f.CssClass @ValidStateClass(f.Id)" @{ if (hidden) { <text> style="display: none" </text> } }>
    

    Thanks again Nik!

    /Chriztian

  • Nik 1154 posts 4742 karma points MVP 2x c-trib
    Feb 09, 2018 @ 16:45
    Nik
    0

    No problem Chriztian, pleased I could help :-)

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