diff --git a/src/BootstrapBlazor/Attributes/AutoGenerateColumnAttribute.cs b/src/BootstrapBlazor/Attributes/AutoGenerateColumnAttribute.cs
index 071a3effd8ddd5be383a87d2fc4fdd7a70969d8c..de5aade48c08cf335f9c08ddc95a228b01af3f0e 100644
--- a/src/BootstrapBlazor/Attributes/AutoGenerateColumnAttribute.cs
+++ b/src/BootstrapBlazor/Attributes/AutoGenerateColumnAttribute.cs
@@ -155,6 +155,11 @@ public class AutoGenerateColumnAttribute : AutoGenerateBaseAttribute, ITableColu
     /// </summary>
     public int Rows { get; set; }
 
+    /// <summary>
+    /// 获得/设置 控件跨列数量
+    /// </summary>
+    public int ColSpan { get; set; }
+
     /// <summary>
     /// 获得/设置 列过滤器
     /// </summary>
diff --git a/src/BootstrapBlazor/Components/EditorForm/EditorForm.razor.cs b/src/BootstrapBlazor/Components/EditorForm/EditorForm.razor.cs
index 26cb0204802d9e4091adf6560f28e6e53b4840e6..956a1bc6caf3cc9d227ad8db3068e59c40668715 100644
--- a/src/BootstrapBlazor/Components/EditorForm/EditorForm.razor.cs
+++ b/src/BootstrapBlazor/Components/EditorForm/EditorForm.razor.cs
@@ -25,7 +25,7 @@ public partial class EditorForm<TModel> : IShowLabel
     /// <param name="item"></param>
     /// <returns></returns>
     private string? GetCssString(IEditorItem item) => CssBuilder.Default("col-12")
-        .AddClass($"col-sm-6 col-md-{Math.Floor(12d / (ItemsPerRow ?? 1))}", item.Items == null && ItemsPerRow != null && item.Rows == 0)
+        .AddClass($"col-sm-6 col-md-{Math.Floor(12d / ((ItemsPerRow ?? 1) / (item.ColSpan == 0 ? 1 : item.ColSpan)))}", item.Items == null && ItemsPerRow != null && item.Rows == 0)
         .Build();
 
     private string? FormClassString => CssBuilder.Default("row g-3")
diff --git a/src/BootstrapBlazor/Components/EditorForm/EditorItem.cs b/src/BootstrapBlazor/Components/EditorForm/EditorItem.cs
index 76b4280f50dc1b47d8a2acbbda7a611c6aaa3231..82d5009b2e2d799ded218b22d2e8fae8a668e2ee 100644
--- a/src/BootstrapBlazor/Components/EditorForm/EditorItem.cs
+++ b/src/BootstrapBlazor/Components/EditorForm/EditorItem.cs
@@ -94,6 +94,12 @@ public class EditorItem<TValue> : ComponentBase, IEditorItem
     [Parameter]
     public int Rows { get; set; }
 
+    /// <summary>
+    /// 获得/设置 控件跨列数量
+    /// </summary>
+    [Parameter]
+    public int ColSpan { get; set; }
+
     /// <summary>
     /// 获得/设置 编辑模板
     /// </summary>
diff --git a/src/BootstrapBlazor/Components/EditorForm/IEditorItem.cs b/src/BootstrapBlazor/Components/EditorForm/IEditorItem.cs
index 031b0145021add08604926c7462b483048b2d1a9..386af1e70f6fb2242cfd20afb86df3aa106f8ce4 100644
--- a/src/BootstrapBlazor/Components/EditorForm/IEditorItem.cs
+++ b/src/BootstrapBlazor/Components/EditorForm/IEditorItem.cs
@@ -139,4 +139,9 @@ public interface IEditorItem
     /// 获得/设置 当前属性分组排序 默认 0
     /// </summary>
     int GroupOrder { get; set; }
+
+    /// <summary>
+    /// 获得/设置 控件跨列数量
+    /// </summary>
+    int ColSpan { get; set; }
 }
diff --git a/src/BootstrapBlazor/Components/Table/InternalTableColumn.cs b/src/BootstrapBlazor/Components/Table/InternalTableColumn.cs
index 0c89cc98f0d32da8fbc524f3023cc4d958d86c20..36812a280940f6060ef38bcf344f8adce2578314 100644
--- a/src/BootstrapBlazor/Components/Table/InternalTableColumn.cs
+++ b/src/BootstrapBlazor/Components/Table/InternalTableColumn.cs
@@ -88,6 +88,8 @@ internal class InternalTableColumn : ITableColumn
 
     public int Rows { get; set; }
 
+    public int ColSpan { get; set; }
+
     [NotNull]
     public string? Text { get; set; }
 
diff --git a/src/BootstrapBlazor/Components/Table/TableColumn.cs b/src/BootstrapBlazor/Components/Table/TableColumn.cs
index aafb23ece134fa1d013c49304ff7d381f34ce8bd..6c6305f6872ab74e3886811e337e1578855587a4 100644
--- a/src/BootstrapBlazor/Components/Table/TableColumn.cs
+++ b/src/BootstrapBlazor/Components/Table/TableColumn.cs
@@ -123,6 +123,12 @@ public class TableColumn<TItem, TType> : BootstrapComponentBase, ITableColumn
     [Parameter]
     public int Rows { get; set; }
 
+    /// <summary>
+    /// 获得/设置 控件跨列数量
+    /// </summary>
+    [Parameter]
+    public int ColSpan { get; set; }
+
     /// <summary>
     /// 获得/设置 是否为默认排序规则 默认为 SortOrder.Unset
     /// </summary>