![]() My initial thought is to use a token syntax that gets replaced with the dictionary item when the form is rendered, then hook in the relevant bits of the MVC rendering engine to do this, for example. I've some ideas, but I'd like to ask the community first if there's an obvious way of doing it, or precedent set elsewhere in the codebase that should dictate how we do it here. I've had a look through the code and can't see any existing implementation so I'm considering implementing this myself. However (here it comes.), I'd really like to be able to reference dictionary item values in the message strings defined in my model. It's great that Umbraco allows developers to build forms in this manner with surface controllers as it's fairly standard asp.net mvc practice. StringLength, It defines a maximum length. The Dynamic Data List.aspx, ListDetails.aspx, and Details.aspx page templates use the Name property for the field label. Commonly used Validation Annotations DisplayName, It is used to define the text we want to display for the fields. Var displayAttribute = I put this following syntax into my Razor => x.FirstName) => => x.Email) => x.Email) The name is typically used as the field label for a UI element that is bound to the property that is annotated with this attribute. It uses the data annotation attributes to define validation rules and UI styles. Public static IHtmlContent ShortNameFor(this IHtmlHelper html, ABP Framework automatically localizes the display name of a form element. The Column attribute can be applied to one or more properties in an entity class to configure the corresponding column name, data type and order in a database. Return html.MetaDataFor(expression, m => m.Description) Return new HtmlString(property(modelExplorer.Metadata)) Īnd your two public methods like this: public static IHtmlContent DescriptionFor(this IHtmlHelper html, Expression> expression) RadPivotGrid application Let's create a simple application that will show data for different orders. More information about Data Annotation can be found here. If (modelExplorer = null) throw new InvalidOperationException($"Failed to get model explorer for ") Data Annotations are used to specify validation rules, specify how the data is displayed, and set relationships between classes. ![]() Var modelExplorer = ExpressionMetadataProvider.FromLambdaExpression(expression, html.ViewData, html.MetadataProvider) If (expression = null) throw new ArgumentNullException(nameof(expression)) If (html = null) throw new ArgumentNullException(nameof(html)) Public static IHtmlContent DescriptionFor(this IHtmlHelper html, Expression> expression) There is the code I tried, the first method seems OK, but the second does not compile, so I would like to fix it: using For example, a 0 is entered in a field that expects a rating between 1 and 5. Model validation occurs after model binding and reports errors where data doesnt conform to business rules. For example, an 'x' is entered in an integer field. ![]() What I want to do is use the information that is already in the model data annotations to do that. Errors that originate from model binding are generally data conversion errors. I understand that if I let the Telerik form tag I can get the labels to generate and display from my data annotations but I am not auto generating my forms. Youll notice in my second code block what I did as an undesirable workaround. I have a class with Data Annotations and need to get a list of strings from Display and attribute Name. I use data annotations heavily in my view models. ![]() This is especially useful when the name of the. Unfortunately for a reason I don't understand, this doesn't work for the ShortName. If you have your translated property names in Resource Files, that is supported out of the box. I am trying to replace the name of the column header with the 'display name' in the model. Display Attribute: The Display attribute is used to specify the name of a property as it should appear in the UI. It also helps in localization of display attributes. I read the following answer that does the trick for the Description. By using resource file, it will be easier to change the display name instead changing the C class file. NET Core 1.1 project (VS 2017) I try to use the ShortName attrubute of the Display property in order to use the DisplayFor HTML Helper:
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