private static AngularTagBuilder CreateValidationTagBuilder(ValidationRule rule, string nodeName, bool onDirtyOnly, IDictionary <string, object> htmlAttributes)
{
var tagBuilder = new AngularTagBuilder("span");
tagBuilder.Attributes["class"] = AngularConfiguration.HelpCssClass;
string ngShow = string.Empty;
if (rule.ValidationParameters.Any())
{
var validations = rule.ValidationParameters.Select(kvp => string.Format("{0}.$error.{1}", nodeName, kvp.Key));
ngShow += string.Format("({0})", string.Join(" || ", validations));
if (onDirtyOnly)
{
ngShow += string.Format(" && {0}.$dirty", nodeName);
}
}
tagBuilder.Attributes["ng-show"] = ngShow.TrimEnd(' ');
tagBuilder.MergeAttributes(htmlAttributes, true);
tagBuilder.SetInnerText(rule.ErrorMessage);
return(tagBuilder);
}
public IHtmlString Label <TProperty>(Expression <Func <TModel, TProperty> > expression, IDictionary <string, object> htmlAttributes)
{
var metadata = ModelMetadata.FromLambdaExpression(expression, _helper.ViewData);
string displayName = metadata.DisplayName ?? metadata.PropertyName;
var tagBuilder = new AngularTagBuilder("label");
tagBuilder.Attributes["class"] = AngularConfiguration.LabelCssClass;
var expressionText = ExpressionHelper.GetExpressionText(expression);
var nodeName = GetElementIdentifier(expressionText);
tagBuilder.MergeAttribute("for", nodeName);
tagBuilder.SetInnerText(displayName);
tagBuilder.MergeAttributes(htmlAttributes, true);
return(new MvcHtmlString(tagBuilder.ToString(TagRenderMode.Normal)));
}
public IHtmlString Dropdown <TProperty>(Expression <Func <TModel, TProperty> > expression, string ngOptions, string emptyElementText, IDictionary <string, object> htmlAttributes)
{
var metadata = ModelMetadata.FromLambdaExpression(expression, _helper.ViewData);
var tagBuilder = CreateTagBuilder(expression, "select", htmlAttributes, metadata);
if (!string.IsNullOrEmpty(ngOptions))
{
tagBuilder.Attributes["ng-options"] = ngOptions;
}
if (!string.IsNullOrEmpty(emptyElementText))
{
var option = new AngularTagBuilder("option");
option.Attributes["value"] = string.Empty;
option.SetInnerText(emptyElementText);
tagBuilder.InnerHtml = option.ToString(TagRenderMode.Normal);
}
return(new MvcHtmlString(tagBuilder.ToString(TagRenderMode.Normal)));
}