diff --git a/modules/blogging/src/Volo.Blogging.Admin.Web/Pages/Blogging/Admin/Blogs/Create.cshtml.cs b/modules/blogging/src/Volo.Blogging.Admin.Web/Pages/Blogging/Admin/Blogs/Create.cshtml.cs
index b2d89fbd55..6f4bae5e63 100644
--- a/modules/blogging/src/Volo.Blogging.Admin.Web/Pages/Blogging/Admin/Blogs/Create.cshtml.cs
+++ b/modules/blogging/src/Volo.Blogging.Admin.Web/Pages/Blogging/Admin/Blogs/Create.cshtml.cs
@@ -2,6 +2,7 @@ using System.ComponentModel.DataAnnotations;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
+using Volo.Abp.Validation;
 using Volo.Blogging.Admin.Blogs;
 using Volo.Blogging.Blogs;
 
@@ -44,14 +45,14 @@ namespace Volo.Blogging.Admin.Pages.Blogging.Admin.Blogs
         public class BlogCreateModalView
         {
             [Required]
-            [StringLength(BlogConsts.MaxNameLength)]
+            [DynamicStringLength(typeof(BlogConsts), nameof(BlogConsts.MaxNameLength))]
             public string Name { get; set; }
 
             [Required]
-            [StringLength(BlogConsts.MaxShortNameLength)]
+            [DynamicStringLength(typeof(BlogConsts), nameof(BlogConsts.MaxShortNameLength))]
             public string ShortName { get; set; }
 
-            [StringLength(BlogConsts.MaxDescriptionLength)]
+            [DynamicStringLength(typeof(BlogConsts), nameof(BlogConsts.MaxDescriptionLength))]
             public string Description { get; set; }
 
         }
diff --git a/modules/blogging/src/Volo.Blogging.Admin.Web/Pages/Blogging/Admin/Blogs/Edit.cshtml.cs b/modules/blogging/src/Volo.Blogging.Admin.Web/Pages/Blogging/Admin/Blogs/Edit.cshtml.cs
index 536810e015..8d0b2ba978 100644
--- a/modules/blogging/src/Volo.Blogging.Admin.Web/Pages/Blogging/Admin/Blogs/Edit.cshtml.cs
+++ b/modules/blogging/src/Volo.Blogging.Admin.Web/Pages/Blogging/Admin/Blogs/Edit.cshtml.cs
@@ -3,6 +3,7 @@ using System.ComponentModel.DataAnnotations;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
+using Volo.Abp.Validation;
 using Volo.Blogging.Admin.Blogs;
 using Volo.Blogging.Blogs;
 
@@ -58,14 +59,14 @@ namespace Volo.Blogging.Admin.Pages.Blogging.Admin.Blogs
             public Guid Id { get; set; }
 
             [Required]
-            [StringLength(BlogConsts.MaxNameLength)]
+            [DynamicStringLength(typeof(BlogConsts), nameof(BlogConsts.MaxNameLength))]
             public string Name { get; set; }
 
             [Required]
-            [StringLength(BlogConsts.MaxShortNameLength)]
+            [DynamicStringLength(typeof(BlogConsts), nameof(BlogConsts.MaxShortNameLength))]
             public string ShortName { get; set; }
 
-            [StringLength(BlogConsts.MaxDescriptionLength)]
+            [DynamicStringLength(typeof(BlogConsts), nameof(BlogConsts.MaxDescriptionLength))]
             public string Description { get; set; }
         }
     }
diff --git a/modules/blogging/src/Volo.Blogging.Application.Contracts/Volo/Blogging/Files/BloggingWebConsts.cs b/modules/blogging/src/Volo.Blogging.Application.Contracts/Volo/Blogging/Files/BloggingWebConsts.cs
index ae4eb32dff..d9eb284ac6 100644
--- a/modules/blogging/src/Volo.Blogging.Application.Contracts/Volo/Blogging/Files/BloggingWebConsts.cs
+++ b/modules/blogging/src/Volo.Blogging.Application.Contracts/Volo/Blogging/Files/BloggingWebConsts.cs
@@ -6,7 +6,10 @@ namespace Volo.Blogging
     {
         public class FileUploading
         {
-            public const int MaxFileSize = 5242880; //5MB
+            /// <summary>
+            /// Default value: 5242880
+            /// </summary>
+            public static int MaxFileSize { get; set; } = 5242880; //5MB
 
             public static int MaxFileSizeAsMegabytes => Convert.ToInt32((MaxFileSize / 1024f) / 1024f);
         }
diff --git a/modules/blogging/src/Volo.Blogging.Application.Contracts/Volo/Blogging/Posts/CreatePostDto.cs b/modules/blogging/src/Volo.Blogging.Application.Contracts/Volo/Blogging/Posts/CreatePostDto.cs
index 164e4f691f..96cfbd6859 100644
--- a/modules/blogging/src/Volo.Blogging.Application.Contracts/Volo/Blogging/Posts/CreatePostDto.cs
+++ b/modules/blogging/src/Volo.Blogging.Application.Contracts/Volo/Blogging/Posts/CreatePostDto.cs
@@ -1,5 +1,6 @@
 using System;
 using System.ComponentModel.DataAnnotations;
+using Volo.Abp.Validation;
 
 namespace Volo.Blogging.Posts
 {
@@ -8,22 +9,22 @@ namespace Volo.Blogging.Posts
         public Guid BlogId { get; set; }
 
         [Required]
-        [StringLength(PostConsts.MaxTitleLength)]
+        [DynamicStringLength(typeof(PostConsts), nameof(PostConsts.MaxTitleLength))]
         public string Title { get; set; }
 
         [Required]
         public string CoverImage { get; set; }
 
         [Required]
-        [StringLength(PostConsts.MaxUrlLength)]
+        [DynamicStringLength(typeof(PostConsts), nameof(PostConsts.MaxUrlLength))]
         public string Url { get; set; }
 
-        [StringLength(PostConsts.MaxContentLength)]
+        [DynamicStringLength(typeof(PostConsts), nameof(PostConsts.MaxContentLength))]
         public string Content { get; set; }
 
         public string Tags { get; set; }
 
-        [StringLength(PostConsts.MaxDescriptionLength)]
+        [DynamicStringLength(typeof(PostConsts), nameof(PostConsts.MaxDescriptionLength))]
         public string Description { get; set; }
 
     }
diff --git a/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Blogs/BlogConsts.cs b/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Blogs/BlogConsts.cs
index 502a4364e7..b4b428207c 100644
--- a/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Blogs/BlogConsts.cs
+++ b/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Blogs/BlogConsts.cs
@@ -2,10 +2,19 @@
 {
     public static class BlogConsts
     {
-        public const int MaxNameLength = 256;
+        /// <summary>
+        /// Default value: 256
+        /// </summary>
+        public static int MaxNameLength { get; set; } = 256;
 
-        public const int MaxShortNameLength = 32;
+        /// <summary>
+        /// Default value: 32
+        /// </summary>
+        public static int MaxShortNameLength { get; set; } = 32;
 
-        public const int MaxDescriptionLength = 1024;
+        /// <summary>
+        /// Default value: 1024
+        /// </summary>
+        public static int MaxDescriptionLength { get; set; } = 1024;
     }
 }
diff --git a/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Comments/CommentConsts.cs b/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Comments/CommentConsts.cs
index 34cc655fb3..359b322cbf 100644
--- a/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Comments/CommentConsts.cs
+++ b/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Comments/CommentConsts.cs
@@ -2,6 +2,9 @@
 {
     public class CommentConsts
     {
-        public const int MaxTextLength = 1024;
+        /// <summary>
+        /// Default value: 1024
+        /// </summary>
+        public static int MaxTextLength { get; set; } = 1024;
     }
 }
diff --git a/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Posts/PostConsts.cs b/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Posts/PostConsts.cs
index 665984dfbb..de91caa2d3 100644
--- a/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Posts/PostConsts.cs
+++ b/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Posts/PostConsts.cs
@@ -2,16 +2,34 @@
 {
     public static class PostConsts
     {
-        public const int MaxTitleLength = 512;
+        /// <summary>
+        /// Default value: 512
+        /// </summary>
+        public static int MaxTitleLength { get; set; } = 512;
 
-        public const int MaxUrlLength = 64;
+        /// <summary>
+        /// Default value: 64
+        /// </summary>
+        public static int MaxUrlLength { get; set; } = 64;
 
-        public const int MaxContentLength = 1024 * 1024; //1MB
+        /// <summary>
+        /// Default value: 1024 * 1024
+        /// </summary>
+        public static int MaxContentLength { get; set; } = 1024 * 1024; //1MB
 
-        public const int MaxDescriptionLength = 1000;
+        /// <summary>
+        /// Default value: 1000
+        /// </summary>
+        public static int MaxDescriptionLength { get; set; } = 1000;
 
-        public const int MaxTitleLengthToBeSeoFriendly = 60;
+        /// <summary>
+        /// Default value: 60
+        /// </summary>
+        public static int MaxTitleLengthToBeSeoFriendly { get; set; } = 60;
 
-        public const int MaxSeoFriendlyDescriptionLength = 200;
+        /// <summary>
+        /// Default value: 200
+        /// </summary>
+        public static int MaxSeoFriendlyDescriptionLength { get; set; } = 200;
     }
 }
diff --git a/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Tagging/TagConsts.cs b/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Tagging/TagConsts.cs
index c75ccd4184..ad2be87ca8 100644
--- a/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Tagging/TagConsts.cs
+++ b/modules/blogging/src/Volo.Blogging.Domain.Shared/Volo/Blogging/Tagging/TagConsts.cs
@@ -2,8 +2,14 @@
 {
     public class TagConsts
     {
-        public const int MaxNameLength = 64;
+        /// <summary>
+        /// Default value: 64
+        /// </summary>
+        public static int MaxNameLength { get; set; } = 64;
 
-        public const int MaxDescriptionLength = 512;
+        /// <summary>
+        /// Default value: 512
+        /// </summary>
+        public static int MaxDescriptionLength { get; set; } = 512;
     }
 }
diff --git a/modules/blogging/src/Volo.Blogging.Web/Pages/Blogs/Posts/Edit.cshtml.cs b/modules/blogging/src/Volo.Blogging.Web/Pages/Blogs/Posts/Edit.cshtml.cs
index c2ebcc441b..6d998a7172 100644
--- a/modules/blogging/src/Volo.Blogging.Web/Pages/Blogs/Posts/Edit.cshtml.cs
+++ b/modules/blogging/src/Volo.Blogging.Web/Pages/Blogs/Posts/Edit.cshtml.cs
@@ -6,6 +6,7 @@ using System.Threading.Tasks;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Volo.Abp.AspNetCore.Mvc.UI.RazorPages;
+using Volo.Abp.Validation;
 using Volo.Blogging.Blogs;
 using Volo.Blogging.Pages.Blogs.Shared.Helpers;
 using Volo.Blogging.Posts;
@@ -85,7 +86,7 @@ namespace Volo.Blogging.Pages.Blog.Posts
         public Guid BlogId { get; set; }
 
         [Required]
-        [StringLength(PostConsts.MaxTitleLength)]
+        [DynamicStringLength(typeof(PostConsts), nameof(PostConsts.MaxTitleLength))]
         public string Title { get; set; }
 
         [Required]
@@ -93,14 +94,14 @@ namespace Volo.Blogging.Pages.Blog.Posts
         public string CoverImage { get; set; }
 
         [Required]
-        [StringLength(PostConsts.MaxUrlLength)]
+        [DynamicStringLength(typeof(PostConsts), nameof(PostConsts.MaxUrlLength))]
         public string Url { get; set; }
 
         [HiddenInput]
-        [StringLength(PostConsts.MaxContentLength)]
+        [DynamicStringLength(typeof(PostConsts), nameof(PostConsts.MaxContentLength))]
         public string Content { get; set; }
 
-        [StringLength(PostConsts.MaxDescriptionLength)]
+        [DynamicStringLength(typeof(PostConsts), nameof(PostConsts.MaxDescriptionLength))]
         public string Description { get; set; }
 
         public string Tags { get; set; }
diff --git a/modules/blogging/src/Volo.Blogging.Web/Pages/Blogs/Posts/New.cshtml.cs b/modules/blogging/src/Volo.Blogging.Web/Pages/Blogs/Posts/New.cshtml.cs
index 41c8f43ddd..3930a79900 100644
--- a/modules/blogging/src/Volo.Blogging.Web/Pages/Blogs/Posts/New.cshtml.cs
+++ b/modules/blogging/src/Volo.Blogging.Web/Pages/Blogs/Posts/New.cshtml.cs
@@ -6,6 +6,7 @@ using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Options;
 using Volo.Abp.AspNetCore.Mvc.UI.RazorPages;
+using Volo.Abp.Validation;
 using Volo.Blogging.Blogs;
 using Volo.Blogging.Blogs.Dtos;
 using Volo.Blogging.Pages.Blogs.Shared.Helpers;
@@ -79,7 +80,7 @@ namespace Volo.Blogging.Pages.Blog.Posts
             public Guid BlogId { get; set; }
 
             [Required]
-            [StringLength(PostConsts.MaxTitleLength)]
+            [DynamicStringLength(typeof(PostConsts), nameof(PostConsts.MaxTitleLength))]
             public string Title { get; set; }
 
             [Required]
@@ -87,16 +88,16 @@ namespace Volo.Blogging.Pages.Blog.Posts
             public string CoverImage { get; set; }
 
             [Required]
-            [StringLength(PostConsts.MaxUrlLength)]
+            [DynamicStringLength(typeof(PostConsts), nameof(PostConsts.MaxUrlLength))]
             public string Url { get; set; }
 
             [HiddenInput]
-            [StringLength(PostConsts.MaxContentLength)]
+            [DynamicStringLength(typeof(PostConsts), nameof(PostConsts.MaxContentLength))]
             public string Content { get; set; }
 
             public string Tags { get; set; }
 
-            [StringLength(PostConsts.MaxDescriptionLength)]
+            [DynamicStringLength(typeof(PostConsts), nameof(PostConsts.MaxDescriptionLength))]
             public string Description { get; set; }
 
         }