diff --git a/src/BootstrapBlazor.Shared/Samples/Dialogs.razor b/src/BootstrapBlazor.Shared/Samples/Dialogs.razor
index 6923657242c6faba066628a8ada39946be4ed29d..ff8f6c17a141e6e9de95079c75d197dac00b82d5 100644
--- a/src/BootstrapBlazor.Shared/Samples/Dialogs.razor
+++ b/src/BootstrapBlazor.Shared/Samples/Dialogs.razor
@@ -100,6 +100,10 @@
     <BlockLogger @ref="Trace" class="mt-3" />
 </DemoBlock>
 
+<DemoBlock Title="对话框大小" Introduction="通过设置 <code>Size</code> <code>FullScreenSize</code> 参数组合可以实现非常灵活的窗体大小控制" Name="ModalDialog">
+    <Button OnClick="@OnSizeDialogClick">全屏弹窗(&lt; 1200px)</Button>
+</DemoBlock>
+
 <DemoBlock Title="打印按钮" Introduction="通过设置 <code>ShowPrintButton</code> 使 <code>Header</code> 上显示一个打印预览按钮" Name="PrintDialog">
     <p>通过设置 <code>@nameof(DialogOption.PrintButtonText)</code> 更改 <b>打印预览</b> 按钮文字</p>
     <Button OnClick="@OnPrintDialogClick">点击打开 Dialog</Button>
diff --git a/src/BootstrapBlazor.Shared/Samples/Dialogs.razor.cs b/src/BootstrapBlazor.Shared/Samples/Dialogs.razor.cs
index db273d3f1c457ec86f1fc00bda4eaf0ea5ed8d6f..373fc65b0a9e415593b8195aea24e4c6f36098b2 100644
--- a/src/BootstrapBlazor.Shared/Samples/Dialogs.razor.cs
+++ b/src/BootstrapBlazor.Shared/Samples/Dialogs.razor.cs
@@ -164,6 +164,13 @@ public sealed partial class Dialogs
         Trace.Log($"弹窗返回值为: {result} 组件返回值为: {DemoValue1}");
     }
 
+    private Task OnSizeDialogClick() => DialogService.Show(new DialogOption()
+    {
+        Title = "全屏窗口",
+        FullScreenSize = FullScreenSize.ExtraLarge,
+        BodyTemplate = builder => builder.AddContent(0, "屏幕小于 1200px 时全屏显示")
+    });
+
     private async Task OnPrintDialogClick()
     {
         var op = new DialogOption()
@@ -221,115 +228,119 @@ public sealed partial class Dialogs
     /// 获得属性方法
     /// </summary>
     /// <returns></returns>
-    private static IEnumerable<AttributeItem> GetAttributes()
+    private static IEnumerable<AttributeItem> GetAttributes() => new AttributeItem[]
     {
-        return new AttributeItem[]
-        {
-                new AttributeItem() {
-                    Name = "Component",
-                    Description = "对话框 Body 中引用的组件的参数",
-                    Type = "DynamicComponent",
-                    ValueList = " — ",
-                    DefaultValue = " — "
-                },
-                new AttributeItem() {
-                    Name = "BodyContext",
-                    Description = "弹窗传参",
-                    Type = "object",
-                    ValueList = " — ",
-                    DefaultValue = " — "
-                },
-                new AttributeItem() {
-                    Name = "HeaderTemplate",
-                    Description = "模态主体 ModalHeader 模板",
-                    Type = "RenderFragment",
-                    ValueList = " — ",
-                    DefaultValue = " — "
-                },
-                new AttributeItem() {
-                    Name = "BodyTemplate",
-                    Description = "模态主体 ModalBody 组件",
-                    Type = "RenderFragment",
-                    ValueList = " — ",
-                    DefaultValue = " — "
-                },
-                new AttributeItem() {
-                    Name = "FooterTemplate",
-                    Description = "模态底部 ModalFooter 组件",
-                    Type = "RenderFragment",
-                    ValueList = " — ",
-                    DefaultValue = " — "
-                },
-                new AttributeItem() {
-                    Name = "IsCentered",
-                    Description = "是否垂直居中",
-                    Type = "boolean",
-                    ValueList = "true|false",
-                    DefaultValue = "true"
-                },
-                new AttributeItem() {
-                    Name = "IsScrolling",
-                    Description = "是否弹窗正文超长时滚动",
-                    Type = "boolean",
-                    ValueList = "true|false",
-                    DefaultValue = "false"
-                },
-                new AttributeItem() {
-                    Name = "ShowCloseButton",
-                    Description = "是否显示关闭按钮",
-                    Type = "boolean",
-                    ValueList = "true|false",
-                    DefaultValue = "true"
-                },
-                new AttributeItem() {
-                    Name = "ShowHeaderCloseButton",
-                    Description = "是否显示标题栏右侧关闭按钮",
-                    Type = "boolean",
-                    ValueList = "true|false",
-                    DefaultValue = "true"
-                },
-                new AttributeItem() {
-                    Name = "ShowFooter",
-                    Description = "是否显示 Footer",
-                    Type = "boolean",
-                    ValueList = "true|false",
-                    DefaultValue = "true"
-                },
-                new AttributeItem() {
-                    Name = nameof(DialogOption.ShowPrintButton),
-                    Description = "是否显示打印按钮",
-                    Type = "boolean",
-                    ValueList = "true|false",
-                    DefaultValue = "false"
-                },
-                new AttributeItem() {
-                    Name = nameof(DialogOption.ShowPrintButtonInHeader),
-                    Description = "打印按钮是否显示在 Header 中",
-                    Type = "boolean",
-                    ValueList = "true|false",
-                    DefaultValue = "false"
-                },
-                new AttributeItem() {
-                    Name = "Size",
-                    Description = "尺寸",
-                    Type = "Size",
-                    ValueList = "None / ExtraSmall / Small / Medium / Large / ExtraLarge",
-                    DefaultValue = "Large"
-                },
-                new AttributeItem() {
-                    Name = "Title",
-                    Description = "弹窗标题",
-                    Type = "string",
-                    ValueList = " — ",
-                    DefaultValue = " 未设置 "
-                },
-                new AttributeItem() {
-                    Name = nameof(DialogOption.PrintButtonText),
-                    Description = "打印按钮显示文字",
-                    Type = "string",
-                    ValueList = " — ",
-                    DefaultValue = "资源文件中设定值"
-                }
-        };
-    }
+        new AttributeItem() {
+            Name = "Component",
+            Description = "对话框 Body 中引用的组件的参数",
+            Type = "DynamicComponent",
+            ValueList = " — ",
+            DefaultValue = " — "
+        },
+        new AttributeItem() {
+            Name = "BodyContext",
+            Description = "弹窗传参",
+            Type = "object",
+            ValueList = " — ",
+            DefaultValue = " — "
+        },
+        new AttributeItem() {
+            Name = "HeaderTemplate",
+            Description = "模态主体 ModalHeader 模板",
+            Type = "RenderFragment",
+            ValueList = " — ",
+            DefaultValue = " — "
+        },
+        new AttributeItem() {
+            Name = "BodyTemplate",
+            Description = "模态主体 ModalBody 组件",
+            Type = "RenderFragment",
+            ValueList = " — ",
+            DefaultValue = " — "
+        },
+        new AttributeItem() {
+            Name = "FooterTemplate",
+            Description = "模态底部 ModalFooter 组件",
+            Type = "RenderFragment",
+            ValueList = " — ",
+            DefaultValue = " — "
+        },
+        new AttributeItem() {
+            Name = "IsCentered",
+            Description = "是否垂直居中",
+            Type = "boolean",
+            ValueList = "true|false",
+            DefaultValue = "true"
+        },
+        new AttributeItem() {
+            Name = "IsScrolling",
+            Description = "是否弹窗正文超长时滚动",
+            Type = "boolean",
+            ValueList = "true|false",
+            DefaultValue = "false"
+        },
+        new AttributeItem() {
+            Name = "ShowCloseButton",
+            Description = "是否显示关闭按钮",
+            Type = "boolean",
+            ValueList = "true|false",
+            DefaultValue = "true"
+        },
+        new AttributeItem() {
+            Name = "ShowHeaderCloseButton",
+            Description = "是否显示标题栏右侧关闭按钮",
+            Type = "boolean",
+            ValueList = "true|false",
+            DefaultValue = "true"
+        },
+        new AttributeItem() {
+            Name = "ShowFooter",
+            Description = "是否显示 Footer",
+            Type = "boolean",
+            ValueList = "true|false",
+            DefaultValue = "true"
+        },
+        new AttributeItem() {
+            Name = nameof(DialogOption.ShowPrintButton),
+            Description = "是否显示打印按钮",
+            Type = "boolean",
+            ValueList = "true|false",
+            DefaultValue = "false"
+        },
+        new AttributeItem() {
+            Name = nameof(DialogOption.ShowPrintButtonInHeader),
+            Description = "打印按钮是否显示在 Header 中",
+            Type = "boolean",
+            ValueList = "true|false",
+            DefaultValue = "false"
+        },
+        new AttributeItem() {
+            Name = "Size",
+            Description = "尺寸",
+            Type = "Size",
+            ValueList = "None / ExtraSmall / Small / Medium / Large / ExtraLarge",
+            DefaultValue = "Large"
+        },
+        new AttributeItem() {
+            Name = nameof(DialogOption.FullScreenSize),
+            Description = "小于特定尺寸时全屏",
+            Type = "Size",
+            ValueList = "None / Always / Small / Medium / Large / ExtraLarge",
+            DefaultValue = "None"
+        },
+        new AttributeItem() {
+            Name = "Title",
+            Description = "弹窗标题",
+            Type = "string",
+            ValueList = " — ",
+            DefaultValue = " 未设置 "
+        },
+        new AttributeItem() {
+            Name = nameof(DialogOption.PrintButtonText),
+            Description = "打印按钮显示文字",
+            Type = "string",
+            ValueList = " — ",
+            DefaultValue = "资源文件中设定值"
+        }
+    };
 }
diff --git a/src/BootstrapBlazor.Shared/Samples/Modals.razor.cs b/src/BootstrapBlazor.Shared/Samples/Modals.razor.cs
index a1dc4f2f7987a3bf92fbf1e67968b7778b4f9225..75f29a5f2b31866926351951411d18bf3a17b17e 100644
--- a/src/BootstrapBlazor.Shared/Samples/Modals.razor.cs
+++ b/src/BootstrapBlazor.Shared/Samples/Modals.razor.cs
@@ -158,7 +158,7 @@ public sealed partial class Modals
             Name = nameof(ModalDialog.FullScreenSize),
             Description = "小于特定尺寸时全屏",
             Type = "Size",
-            ValueList = "None / Always / ExtraSmall / Small / Medium / Large / ExtraLarge",
+            ValueList = "None / Always / Small / Medium / Large / ExtraLarge",
             DefaultValue = "None"
         },
         new AttributeItem() {
diff --git a/src/BootstrapBlazor/BootstrapBlazor.csproj b/src/BootstrapBlazor/BootstrapBlazor.csproj
index be41c7a41420c9a2d1fb26bb5b23f2d1cb8c6459..e6705b0b7f34ce3c769284a9fe70602d71a65d91 100644
--- a/src/BootstrapBlazor/BootstrapBlazor.csproj
+++ b/src/BootstrapBlazor/BootstrapBlazor.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>6.2.7-beta08</Version>
+    <Version>6.2.7-beta09</Version>
   </PropertyGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net5.0'">
diff --git a/src/BootstrapBlazor/Components/Dialog/DialogOption.cs b/src/BootstrapBlazor/Components/Dialog/DialogOption.cs
index 025f1dfb769a1984408f3ed9b8a16152d778ff65..36e495ec34d29b7b16c7c64ec8e4176b1e3c512a 100644
--- a/src/BootstrapBlazor/Components/Dialog/DialogOption.cs
+++ b/src/BootstrapBlazor/Components/Dialog/DialogOption.cs
@@ -36,6 +36,11 @@ public class DialogOption
     /// </summary>
     public Size Size { get; set; } = Size.Large;
 
+    /// <summary>
+    /// 获得/设置 全屏弹窗 默认 None
+    /// </summary>
+    public FullScreenSize FullScreenSize { get; set; } = FullScreenSize.None;
+
     /// <summary>
     /// 获得/设置 是否垂直居中 默认为 true
     /// </summary>
@@ -140,6 +145,7 @@ public class DialogOption
         var ret = new Dictionary<string, object>
         {
             [nameof(Size)] = Size,
+            [nameof(FullScreenSize)] = FullScreenSize,
             [nameof(IsCentered)] = IsCentered,
             [nameof(IsScrolling)] = IsScrolling,
             [nameof(ShowCloseButton)] = ShowCloseButton,