Validation in dynamic form tag helper

src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/AbpTagHelperService.cs

@@ -8,6 +8,7 @@ using System.Threading.Tasks;
 using Microsoft.AspNetCore.Mvc.ViewFeatures;
 using Microsoft.AspNetCore.Razor.TagHelpers;
 using Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Form;
+using Volo.Abp.Threading;
 
 namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers
 {
@@ -36,7 +37,7 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers
             return Task.CompletedTask;
         }
 
-        protected virtual TagHelperOutput GetInnerTagHelper(TagHelperAttributeList attributeList, TagHelperContext context, TagHelper tagHelper, string tagName = "div", TagMode tagMode = TagMode.SelfClosing)
+        protected virtual TagHelperOutput GetInnerTagHelper(TagHelperAttributeList attributeList, TagHelperContext context, TagHelper tagHelper, string tagName = "div", TagMode tagMode = TagMode.SelfClosing, bool runAsync = false)
         {
             var innerOutput = new TagHelperOutput(tagName, attributeList, (useCachedResult, encoder) => Task.Run<TagHelperContent>(() => new DefaultTagHelperContent()))
             {
@@ -45,14 +46,21 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers
 
             var innerContext = new TagHelperContext(attributeList, context.Items, Guid.NewGuid().ToString());
 
-            tagHelper.Process(innerContext, innerOutput);
+            if (runAsync)
+            {
+                AsyncHelper.RunSync(() => tagHelper.ProcessAsync(innerContext, innerOutput));
+            }
+            else
+            {
+                tagHelper.Process(innerContext, innerOutput);
+            }
 
             return innerOutput;
         }
 
-        protected virtual string RenderTagHelper(TagHelperAttributeList attributeList, TagHelperContext context, TagHelper tagHelper, HtmlEncoder htmlEncoder, string tagName = "div", TagMode tagMode = TagMode.SelfClosing)
+        protected virtual string RenderTagHelper(TagHelperAttributeList attributeList, TagHelperContext context, TagHelper tagHelper, HtmlEncoder htmlEncoder, string tagName = "div", TagMode tagMode = TagMode.SelfClosing, bool runAsync = false)
         {
-            var innerOutput = GetInnerTagHelper(attributeList, context, tagHelper, tagName, tagMode);
+            var innerOutput = GetInnerTagHelper(attributeList, context, tagHelper, tagName, tagMode, runAsync);
 
             return RenderTagHelperOutput(innerOutput, htmlEncoder);
         }

src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpInputTagHelperService.cs

@@ -54,9 +54,9 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Form
                 ViewContext = TagHelper.ViewContext
             };
 
-            var attributeList = new TagHelperAttributeList { { "class", "form-control" } };
+            var attributeList = new TagHelperAttributeList { { "class", "text-danger" } };
 
-            return RenderTagHelper(attributeList, context, validationMessageTagHelper, _encoder, "span", TagMode.StartTagAndEndTag);
+            return RenderTagHelper(attributeList, context, validationMessageTagHelper, _encoder, "span", TagMode.StartTagAndEndTag, true);
         }
 
         protected virtual string GetContent(string label, string inputHtml, string validation, bool isCheckbox)
@@ -65,7 +65,7 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Form
                 inputHtml + Environment.NewLine + label :
                 label + Environment.NewLine + inputHtml;
 
-            return "<div class=\"" + (isCheckbox ? "form-check" : "form-group") + "\">" + 
+            return "<div class=\"" + (isCheckbox ? "form-check" : "form-group") + "\">" +
                    Environment.NewLine + innerContent + Environment.NewLine +
                    Environment.NewLine + validation + Environment.NewLine +
                    "</div>";

test/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.Demo/Pages/Components/Forms.cshtml.cs

@@ -40,6 +40,7 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.Demo.Pages.Components
         [Required]
         [DisplayOrder(61)]
         [DisplayName("Age")]
+        [Range(1, 100)]
         public int Age { get; set; }
 
         [Required]