diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Breadcrumb/AbpBreadcrumbItemTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Breadcrumb/AbpBreadcrumbItemTagHelperService.cs
index 9935b90903..f2fbb2e4bf 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Breadcrumb/AbpBreadcrumbItemTagHelperService.cs
+++ b/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(TagHelper.Title);
+        link.InnerHtml.Append(TagHelper.Title);
         return link.ToHtmlString();
     }
 }
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Button/AbpButtonTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Button/AbpButtonTagHelperService.cs
index e5576332b3..d8957fb48c 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Button/AbpButtonTagHelperService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Button/AbpButtonTagHelperService.cs
@@ -2,6 +2,7 @@
 using Microsoft.AspNetCore.Razor.TagHelpers;
 using Microsoft.Extensions.Localization;
 using System;
+using System.Text.Encodings.Web;
 
 namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Button;
 
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Button/AbpButtonTagHelperServiceBase.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Button/AbpButtonTagHelperServiceBase.cs
index a69d09eed4..2a266ce5be 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Button/AbpButtonTagHelperServiceBase.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Button/AbpButtonTagHelperServiceBase.cs
@@ -69,7 +69,7 @@ public abstract class AbpButtonTagHelperServiceBase<TTagHelper> : AbpTagHelperSe
         }
 
         var span = new TagBuilder("span");
-        span.InnerHtml.AppendHtml(TagHelper.Text!);
+        span.InnerHtml.Append(TagHelper.Text!);
         output.Content.AppendHtml(span);
     }
 
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Card/AbpCardBodyTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Card/AbpCardBodyTagHelperService.cs
index b8462f4b5b..dea75d44d7 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Card/AbpCardBodyTagHelperService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Card/AbpCardBodyTagHelperService.cs
@@ -22,7 +22,7 @@ public class AbpCardBodyTagHelperService : AbpTagHelperService<AbpCardBodyTagHel
         {
             var cardTitle = new TagBuilder(AbpCardTitleTagHelper.DefaultHeading.ToHtmlTag());
             cardTitle.AddCssClass("card-title");
-            cardTitle.InnerHtml.AppendHtml(TagHelper.Title!);
+            cardTitle.InnerHtml.Append(TagHelper.Title!);
             output.PreContent.AppendHtml(cardTitle);
         }
     }
@@ -33,7 +33,7 @@ public class AbpCardBodyTagHelperService : AbpTagHelperService<AbpCardBodyTagHel
         {
             var cardSubtitle = new TagBuilder(AbpCardSubtitleTagHelper.DefaultHeading.ToHtmlTag());
             cardSubtitle.AddCssClass("card-subtitle mb-2");
-            cardSubtitle.InnerHtml.AppendHtml(TagHelper.Subtitle!);
+            cardSubtitle.InnerHtml.Append(TagHelper.Subtitle!);
             output.PreContent.AppendHtml(cardSubtitle);
         }
     }
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Carousel/AbpCarouselItemTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Carousel/AbpCarouselItemTagHelperService.cs
index 370d781f04..aa1383168b 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Carousel/AbpCarouselItemTagHelperService.cs
+++ b/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(TagHelper.CaptionTitle!);
+        title.InnerHtml.Append(TagHelper.CaptionTitle!);
 
         var caption = new TagBuilder("p");
-        caption.InnerHtml.AppendHtml(TagHelper.Caption!);
+        caption.InnerHtml.Append(TagHelper.Caption!);
 
         var wrapper = new TagBuilder("div");
         wrapper.AddCssClass("carousel-caption d-none d-md-block");
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Collapse/AbpAccordionItemTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Collapse/AbpAccordionItemTagHelperService.cs
index 7f3f7e9c17..4a5048e128 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Collapse/AbpAccordionItemTagHelperService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Collapse/AbpAccordionItemTagHelperService.cs
@@ -32,7 +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(TagHelper.Title);
+        button.InnerHtml.Append(TagHelper.Title);
 
         var h5 = new TagBuilder("h5");
         h5.AddCssClass("mb-0");
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Collapse/AbpAccordionTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Collapse/AbpAccordionTagHelperService.cs
index c33b25022b..8220f2bd5f 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Collapse/AbpAccordionTagHelperService.cs
+++ b/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");
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpInputTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpInputTagHelperService.cs
index d847848df7..1fb6f806e1 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpInputTagHelperService.cs
+++ b/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");
 
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpRadioInputTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpRadioInputTagHelperService.cs
index ad2b7abe15..0dedb9c755 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpRadioInputTagHelperService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpRadioInputTagHelperService.cs
@@ -107,7 +107,7 @@ public class AbpRadioInputTagHelperService : AbpTagHelperService<AbpRadioInputTa
             var label = new TagBuilder("label");
             label.AddCssClass("form-check-label");
             label.Attributes.Add("for", id);
-            label.InnerHtml.AppendHtml(selectItem.Text);
+            label.InnerHtml.Append(selectItem.Text);
 
             var wrapper = new TagBuilder("div");
             wrapper.AddCssClass("form-check mb-1" + inlineClass);
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpSelectTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpSelectTagHelperService.cs
index eab2944002..c411d571f4 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpSelectTagHelperService.cs
+++ b/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();
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/DatePicker/AbpDatePickerBaseTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/DatePicker/AbpDatePickerBaseTagHelperService.cs
index 5088c08293..dfd9ab60e4 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/DatePicker/AbpDatePickerBaseTagHelperService.cs
+++ b/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");
 
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalHeaderTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalHeaderTagHelperService.cs
index 52ced17912..a6e0b76683 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalHeaderTagHelperService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalHeaderTagHelperService.cs
@@ -27,7 +27,7 @@ public class AbpModalHeaderTagHelperService : AbpTagHelperService<AbpModalHeader
     {
         var title = new TagBuilder("h5");
         title.AddCssClass("modal-title");
-        title.InnerHtml.AppendHtml(TagHelper.Title);
+        title.InnerHtml.Append(TagHelper.Title);
 
         return title.ToHtmlString();
     }
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabDropdownTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabDropdownTagHelperService.cs
index 5201af6a49..81ca55b924 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabDropdownTagHelperService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabDropdownTagHelperService.cs
@@ -40,7 +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(title);
+        anchor.InnerHtml.Append(title);
 
         var menu = new TagBuilder("div");
         menu.AddCssClass("dropdown-menu");
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabLinkTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabLinkTagHelperService.cs
index 2a7555021c..3ccf71efbe 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabLinkTagHelperService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabLinkTagHelperService.cs
@@ -35,7 +35,7 @@ public class AbpTabLinkTagHelperService : AbpTagHelperService<AbpTabLinkTagHelpe
             anchor.AddCssClass("dropdown-item");
             anchor.Attributes.Add("id", id);
             anchor.Attributes.Add("href", href);
-            anchor.InnerHtml.AppendHtml(title);
+            anchor.InnerHtml.Append(title);
 
             return anchor.ToHtmlString();
         }
@@ -45,7 +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(title);
+            anchor.InnerHtml.Append(title);
 
             var listItem = new TagBuilder("li");
             listItem.AddCssClass("nav-item");
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabTagHelperService.cs
index 8d5700159f..7b0619ab6a 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabTagHelperService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabTagHelperService.cs
@@ -53,7 +53,7 @@ public class AbpTabTagHelperService : AbpTagHelperService<AbpTabTagHelper>
                 anchor.Attributes.Add(attr.Name, attr.Value.ToString());
             }
 
-            anchor.InnerHtml.AppendHtml(title);
+            anchor.InnerHtml.Append(title);
 
             return anchor.ToHtmlString();
         }
@@ -73,7 +73,7 @@ public class AbpTabTagHelperService : AbpTagHelperService<AbpTabTagHelper>
                 anchor.Attributes.Add(attr.Name, attr.Value.ToString());
             }
 
-            anchor.InnerHtml.AppendHtml(title);
+            anchor.InnerHtml.Append(title);
 
             var listItem = new TagBuilder("li");
             listItem.AddCssClass("nav-item");
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabsTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabsTagHelperService.cs
index 3026860ed6..c27be9a8c6 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Tab/AbpTabsTagHelperService.cs
+++ b/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);
     }
 }
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperScriptService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperScriptService.cs
index c4701aa7d5..0e87d88370 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperScriptService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperScriptService.cs
@@ -19,9 +19,9 @@ public class AbpTagHelperScriptService : AbpTagHelperResourceService
         IBundleManager bundleManager,
         IOptions<AbpBundlingOptions> options,
         IWebHostEnvironment hostingEnvironment) : base(
-            bundleManager,
-            options,
-            hostingEnvironment)
+        bundleManager,
+        options,
+        hostingEnvironment)
     {
     }
 
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperStyleService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperStyleService.cs
index 1ed3a76fe1..a61d000d6b 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperStyleService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperStyleService.cs
@@ -22,9 +22,9 @@ public class AbpTagHelperStyleService : AbpTagHelperResourceService
         IOptions<AbpBundlingOptions> options,
         IWebHostEnvironment hostingEnvironment,
         IOptions<AbpSecurityHeadersOptions> securityHeadersOptions) : base(
-            bundleManager,
-            options,
-            hostingEnvironment)
+        bundleManager,
+        options,
+        hostingEnvironment)
     {
         SecurityHeadersOptions = securityHeadersOptions.Value;
     }