Comments (1)
I ran into the same problem, and wrote up my own workaround extending ko.
This way you can call other useful things off the KnockoutTagBuilder (eg. valueUpdate, Click, etc), and still have the validation.
The only issue I stumbled upon was having to pass in the HtmlHelper to get what I needed.
Alternatively, you could add the KnockoutContext to the ViewData, and write the same method as an Html extension, but it might feel a little odd getting a KnockoutTagBuilder back from an HtmlHelper method.
What I did:
public static KnockoutTagBuilder<TModel> KnockoutTextBoxFor<TModel>(this KnockoutContext<TModel> ko, HtmlHelper<TModel> html, Expression<Func<TModel, object>> expression, object htmlAttributes) where TModel : class
{
KnockoutTagBuilder<TModel> tag = ko.Html.TextBox(expression, htmlAttributes);
string propName = ExpressionHelper.GetExpressionText(expression);
IDictionary<string, object> validationAttrs = html.GetUnobtrusiveValidationAttributes(propName, ModelMetadata.FromLambdaExpression(expression, html.ViewData));
validationAttrs.Add("name", propName);
tag.ApplyAttributes(validationAttrs);
return tag;
}
Any ideas on how to improve it?
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