Use `Append` method instead of `HtmlEncoder`.

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Breadcrumb/AbpBreadcrumbItemTagHelperService.cs

@@ -1,4 +1,5 @@
-using Microsoft.AspNetCore.Mvc.Rendering;
+using System;
+using Microsoft.AspNetCore.Mvc.Rendering;
 using Microsoft.AspNetCore.Razor.TagHelpers;
 using System.Collections.Generic;
 using System.Text.Encodings.Web;
@@ -41,12 +42,12 @@ public class AbpBreadcrumbItemTagHelperService : AbpTagHelperService<AbpBreadcru
         if (string.IsNullOrWhiteSpace(TagHelper.Href))
         {
             output.Attributes.Add("aria-current", "page");
-            return _encoder.Encode(TagHelper.Title);
+            return _encoder.Encode(TagHelper.Title  ?? string.Empty);
         }
 
         var link = new TagBuilder("a");
         link.Attributes.Add("href", TagHelper.Href);
-        link.InnerHtml.AppendHtml(_encoder.Encode(TagHelper.Title));
+        link.InnerHtml.Append(TagHelper.Title);
         return link.ToHtmlString();
     }
 }

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Button/AbpButtonTagHelperServiceBase.cs

@@ -77,7 +77,7 @@ public abstract class AbpButtonTagHelperServiceBase<TTagHelper> : AbpTagHelperSe
         }
 
         var span = new TagBuilder("span");
-        span.InnerHtml.AppendHtml(Encoder.Encode(TagHelper.Text!));
+        span.InnerHtml.Append(TagHelper.Text!);
         output.Content.AppendHtml(span);
     }
 

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Card/AbpCardBodyTagHelperService.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Text.Encodings.Web;
 using Microsoft.AspNetCore.Mvc.Rendering;
 using Microsoft.AspNetCore.Razor.TagHelpers;
 using Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.Microsoft.AspNetCore.Razor.TagHelpers;
@@ -8,13 +7,6 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Card;
 
 public class AbpCardBodyTagHelperService : AbpTagHelperService<AbpCardBodyTagHelper>
 {
-    protected HtmlEncoder Encoder { get; }
-
-    public AbpCardBodyTagHelperService(HtmlEncoder encoder)
-    {
-        Encoder = encoder;
-    }
-
     public override void Process(TagHelperContext context, TagHelperOutput output)
     {
         output.TagName = "div";
@@ -30,7 +22,7 @@ public class AbpCardBodyTagHelperService : AbpTagHelperService<AbpCardBodyTagHel
         {
             var cardTitle = new TagBuilder(AbpCardTitleTagHelper.DefaultHeading.ToHtmlTag());
             cardTitle.AddCssClass("card-title");
-            cardTitle.InnerHtml.AppendHtml(Encoder.Encode(TagHelper.Title!));
+            cardTitle.InnerHtml.Append(TagHelper.Title!);
             output.PreContent.AppendHtml(cardTitle);
         }
     }
@@ -41,7 +33,7 @@ public class AbpCardBodyTagHelperService : AbpTagHelperService<AbpCardBodyTagHel
         {
             var cardSubtitle = new TagBuilder(AbpCardSubtitleTagHelper.DefaultHeading.ToHtmlTag());
             cardSubtitle.AddCssClass("card-subtitle mb-2");
-            cardSubtitle.InnerHtml.AppendHtml(Encoder.Encode(TagHelper.Subtitle!));
+            cardSubtitle.InnerHtml.Append(TagHelper.Subtitle!);
             output.PreContent.AppendHtml(cardSubtitle);
         }
     }

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Carousel/AbpCarouselItemTagHelperService.cs

@@ -66,10 +66,10 @@ public class AbpCarouselItemTagHelperService : AbpTagHelperService<AbpCarouselIt
         }
 
         var title = new TagBuilder("h5");
-        title.InnerHtml.AppendHtml(_encoder.Encode(TagHelper.CaptionTitle!));
+        title.InnerHtml.Append(TagHelper.CaptionTitle!);
 
         var caption = new TagBuilder("p");
-        caption.InnerHtml.AppendHtml(_encoder.Encode(TagHelper.Caption!));
+        caption.InnerHtml.Append(TagHelper.Caption!);
 
         var wrapper = new TagBuilder("div");
         wrapper.AddCssClass("carousel-caption d-none d-md-block");

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Collapse/AbpAccordionItemTagHelperService.cs

@@ -2,7 +2,6 @@
 using Microsoft.AspNetCore.Razor.TagHelpers;
 using System;
 using System.Collections.Generic;
-using System.Text.Encodings.Web;
 using System.Threading.Tasks;
 using Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Extensions;
 
@@ -10,13 +9,6 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Collapse;
 
 public class AbpAccordionItemTagHelperService : AbpTagHelperService<AbpAccordionItemTagHelper>
 {
-    protected HtmlEncoder Encoder { get; }
-
-    public AbpAccordionItemTagHelperService(HtmlEncoder encoder)
-    {
-        Encoder = encoder;
-    }
-
     public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
     {
         SetRandomIdIfNotProvided();
@@ -40,7 +32,7 @@ public class AbpAccordionItemTagHelperService : AbpTagHelperService<AbpAccordion
         button.Attributes.Add("data-bs-target", "#" + GetContentId());
         button.Attributes.Add("aria-expanded", "true");
         button.Attributes.Add("aria-controls", GetContentId());
-        button.InnerHtml.AppendHtml(Encoder.Encode(TagHelper.Title));
+        button.InnerHtml.Append(TagHelper.Title);
 
         var h5 = new TagBuilder("h5");
         h5.AddCssClass("mb-0");

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Collapse/AbpAccordionTagHelperService.cs

@@ -37,7 +37,7 @@ public class AbpAccordionTagHelperService : AbpTagHelperService<AbpAccordionTagH
     {
         foreach (var item in items)
         {
-            var content = item.Replace(AbpAccordionParentIdPlaceholder, HtmlGenerator.Encode(TagHelper.Id));
+            var content = item.Replace(AbpAccordionParentIdPlaceholder, HtmlGenerator.Encode(TagHelper.Id ?? string.Empty));
 
             var wrapper = new TagBuilder("div");
             wrapper.AddCssClass("card");

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

@@ -287,7 +287,7 @@ public class AbpInputTagHelperService : AbpTagHelperService<AbpInputTagHelper>
 
         var label = new TagBuilder("label");
         label.Attributes.Add("for", GetIdAttributeValue(inputTag));
-        label.InnerHtml.AppendHtml(_encoder.Encode(TagHelper.Label));
+        label.InnerHtml.Append(TagHelper.Label);
 
         label.AddCssClass(isCheckbox ? "form-check-label" : "form-label");
 

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

@@ -7,7 +7,6 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 using System.Text;
-using System.Text.Encodings.Web;
 using Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Extensions;
 
 namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Form;
@@ -15,12 +14,10 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Form;
 public class AbpRadioInputTagHelperService : AbpTagHelperService<AbpRadioInputTagHelper>
 {
     private readonly IAbpTagHelperLocalizer _tagHelperLocalizer;
-    private readonly HtmlEncoder _htmlEncoder;
 
-    public AbpRadioInputTagHelperService(IAbpTagHelperLocalizer tagHelperLocalizer, HtmlEncoder htmlEncoder)
+    public AbpRadioInputTagHelperService(IAbpTagHelperLocalizer tagHelperLocalizer)
     {
         _tagHelperLocalizer = tagHelperLocalizer;
-        _htmlEncoder = htmlEncoder;
     }
 
     public override void Process(TagHelperContext context, TagHelperOutput output)
@@ -77,7 +74,7 @@ public class AbpRadioInputTagHelperService : AbpTagHelperService<AbpRadioInputTa
             var label = new TagBuilder("label");
             label.AddCssClass("form-check-label");
             label.Attributes.Add("for", id);
-            label.InnerHtml.AppendHtml(_htmlEncoder.Encode(selectItem.Text));
+            label.InnerHtml.Append(selectItem.Text);
 
             var wrapper = new TagBuilder("div");
             wrapper.AddCssClass("form-check" + inlineClass);

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

@@ -187,7 +187,7 @@ public class AbpSelectTagHelperService : AbpTagHelperService<AbpSelectTagHelper>
             var label = new TagBuilder("label");
             label.AddCssClass("form-label");
             label.Attributes.Add("for", GetIdAttributeValue(selectTag));
-            label.InnerHtml.AppendHtml(_encoder.Encode(TagHelper.Label));
+            label.InnerHtml.Append(TagHelper.Label);
             label.InnerHtml.AppendHtml(GetRequiredSymbol(context, output));
 
             return label.ToHtmlString();

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/DatePicker/AbpDatePickerBaseTagHelperService.cs

@@ -556,7 +556,7 @@ public abstract class AbpDatePickerBaseTagHelperService<TTagHelper> : AbpTagHelp
 
         var label = new TagBuilder("label");
         label.Attributes.Add("for", GetIdAttributeValue(inputTag));
-        label.InnerHtml.AppendHtml(Encoder.Encode(TagHelper.Label));
+        label.InnerHtml.Append(TagHelper.Label);
 
         label.AddCssClass("form-label");
 

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalHeaderTagHelperService.cs

@@ -1,5 +1,4 @@
-using System.Text.Encodings.Web;
+using Localization.Resources.AbpUi;
-using Localization.Resources.AbpUi;
 using Microsoft.AspNetCore.Mvc.Rendering;
 using Microsoft.AspNetCore.Razor.TagHelpers;
 using Microsoft.Extensions.Localization;
@@ -10,12 +9,10 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Modal;
 public class AbpModalHeaderTagHelperService : AbpTagHelperService<AbpModalHeaderTagHelper>
 {
     protected IStringLocalizer<AbpUiResource> L { get; }
-    protected HtmlEncoder Encoder { get; }
 
-    public AbpModalHeaderTagHelperService(IStringLocalizer<AbpUiResource> localizer, HtmlEncoder encoder)
+    public AbpModalHeaderTagHelperService(IStringLocalizer<AbpUiResource> localizer)
     {
         L = localizer;
-        Encoder = encoder;
     }
 
     public override void Process(TagHelperContext context, TagHelperOutput output)
@@ -30,7 +27,7 @@ public class AbpModalHeaderTagHelperService : AbpTagHelperService<AbpModalHeader
     {
         var title = new TagBuilder("h5");
         title.AddCssClass("modal-title");
-        title.InnerHtml.AppendHtml(Encoder.Encode(TagHelper.Title));
+        title.InnerHtml.Append(TagHelper.Title);
 
         return title.ToHtmlString();
     }

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabDropdownTagHelperService.cs

@@ -2,7 +2,6 @@
 using Microsoft.AspNetCore.Razor.TagHelpers;
 using System;
 using System.Collections.Generic;
-using System.Text.Encodings.Web;
 using System.Threading.Tasks;
 using Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Extensions;
 
@@ -10,13 +9,6 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Tab;
 
 public class AbpTabDropdownTagHelperService : AbpTagHelperService<AbpTabDropdownTagHelper>
 {
-    protected HtmlEncoder Encoder { get; }
-
-    public AbpTabDropdownTagHelperService(HtmlEncoder encoder)
-    {
-        Encoder = encoder;
-    }
-
     public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
     {
         if (string.IsNullOrWhiteSpace(TagHelper.Name))
@@ -48,7 +40,7 @@ public class AbpTabDropdownTagHelperService : AbpTagHelperService<AbpTabDropdown
         anchor.Attributes.Add("role", "button");
         anchor.Attributes.Add("aria-haspopup", "true");
         anchor.Attributes.Add("aria-expanded", "false");
-        anchor.InnerHtml.AppendHtml(Encoder.Encode(title));
+        anchor.InnerHtml.Append(title);
 
         var menu = new TagBuilder("div");
         menu.AddCssClass("dropdown-menu");

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabLinkTagHelperService.cs

@@ -1,7 +1,6 @@
 using Microsoft.AspNetCore.Mvc.Rendering;
 using Microsoft.AspNetCore.Razor.TagHelpers;
 using System.Collections.Generic;
-using System.Text.Encodings.Web;
 using System.Threading.Tasks;
 using Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Extensions;
 
@@ -9,13 +8,6 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Tab;
 
 public class AbpTabLinkTagHelperService : AbpTagHelperService<AbpTabLinkTagHelper>
 {
-    protected HtmlEncoder Encoder { get; }
-
-    public AbpTabLinkTagHelperService(HtmlEncoder encoder)
-    {
-        Encoder = encoder;
-    }
-
     public override Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
     {
         SetPlaceholderForNameIfNotProvided();
@@ -43,7 +35,7 @@ public class AbpTabLinkTagHelperService : AbpTagHelperService<AbpTabLinkTagHelpe
             anchor.AddCssClass("dropdown-item");
             anchor.Attributes.Add("id", id);
             anchor.Attributes.Add("href", href);
-            anchor.InnerHtml.AppendHtml(Encoder.Encode(title));
+            anchor.InnerHtml.Append(title);
 
             return anchor.ToHtmlString();
         }
@@ -53,7 +45,7 @@ public class AbpTabLinkTagHelperService : AbpTagHelperService<AbpTabLinkTagHelpe
             anchor.AddCssClass("nav-link " + AbpTabItemActivePlaceholder);
             anchor.Attributes.Add("id", id);
             anchor.Attributes.Add("href", href);
-            anchor.InnerHtml.AppendHtml(Encoder.Encode(title));
+            anchor.InnerHtml.Append(title);
 
             var listItem = new TagBuilder("li");
             listItem.AddCssClass("nav-item");

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabTagHelperService.cs

@@ -2,7 +2,6 @@
 using Microsoft.AspNetCore.Razor.TagHelpers;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text.Encodings.Web;
 using System.Threading.Tasks;
 using Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Extensions;
 
@@ -10,13 +9,6 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Tab;
 
 public class AbpTabTagHelperService : AbpTagHelperService<AbpTabTagHelper>
 {
-    protected HtmlEncoder Encoder { get; }
-
-    public AbpTabTagHelperService(HtmlEncoder encoder)
-    {
-        Encoder = encoder;
-    }
-
     public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
     {
         SetPlaceholderForNameIfNotProvided();
@@ -61,7 +53,7 @@ public class AbpTabTagHelperService : AbpTagHelperService<AbpTabTagHelper>
                 anchor.Attributes.Add(attr.Name, attr.Value.ToString());
             }
 
-            anchor.InnerHtml.AppendHtml(Encoder.Encode(title));
+            anchor.InnerHtml.Append(title);
 
             return anchor.ToHtmlString();
         }
@@ -81,7 +73,7 @@ public class AbpTabTagHelperService : AbpTagHelperService<AbpTabTagHelper>
                 anchor.Attributes.Add(attr.Name, attr.Value.ToString());
             }
 
-            anchor.InnerHtml.AppendHtml(Encoder.Encode(title));
+            anchor.InnerHtml.Append(title);
 
             var listItem = new TagBuilder("li");
             listItem.AddCssClass("nav-item");

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabsTagHelperService.cs

@@ -225,6 +225,6 @@ public class AbpTabsTagHelperService : AbpTagHelperService<AbpTabsTagHelper>
 
     protected virtual string SetTabItemNameIfNotProvided(string content, int index)
     {
-        return content.Replace(TabItemNamePlaceHolder, HtmlGenerator.Encode(TagHelper.Name) + "_" + index);
+        return content.Replace(TabItemNamePlaceHolder, HtmlGenerator.Encode(TagHelper.Name ?? string.Empty) + "_" + index);
     }
 }

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperScriptService.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text.Encodings.Web;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Mvc.Rendering;

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperStyleService.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text.Encodings.Web;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Mvc.Rendering;