Question: is there a way to hide a property at runtime? about formfactory

[tanis2000]

I'm answering my own question but I'm open to suggestions to improve my way, if any :)

I've modified Form.Property.cshtml to have the first few lines to look like this:

  bool IsHiddenOnEdit = false;
  var attrs = Model.GetCustomAttributes().Where(a => a.GetType().Name == "DataTypeAttribute").ToList();
  foreach(var a in attrs)
  {
    DataTypeAttribute dta = (DataTypeAttribute)a;
    if (dta.CustomDataType == "HiddenOnEdit")
    {
      IsHiddenOnEdit = true;
    }
  }
  if (Model.IsHidden || (IsHiddenOnEdit && ViewBag.EditMode == true))
  {
    <div style="display: none">@Html.BestProperty(Model)</div>

And I've annotated the propety with [DataType("HiddenOnEdit")] where needed.

[mcintyre321]

Glad you managed to get it to work for you!

It would be great to create a base class, so that new attributes wouldn't have to modify the template, and could be added by users without modifying the core.

FormFactory core project:

public abstract class FormFactoryPropertyAttribute : Attribute
{
    public abstract void ApplyToProperty(PropertyVm vm);
}

Form.Property.cshtml

 foreach(var a in attrs.OfType<FormFactoryPropertyAttribute>())
  {
      a.ApplyToProperty(Model, Html);
  }

And then in your project

class IsHiddenOnEdit : FormFactoryPropertyAttribute {

    public override void ApplyToProperty(PropertyVm vm, FfHtmlHelper htmlHelper)
    { 
       if (htmlHelper.ViewData["EditMode"] as bool? ?? false)
           vm.IsHidden = true;
    }
}

I'll add this when I get a chance, but it might not be for a while. If you're up for the challenge, pull requests are gratefully accepted!