diff --git a/lib/ui/css/grid.scss b/lib/ui/css/grid.scss
index 341cc7c..093bd84 100644
--- a/lib/ui/css/grid.scss
+++ b/lib/ui/css/grid.scss
@@ -125,6 +125,14 @@
                             >.ui-check-wrapper {
                                 height: 20px;
                             }
+
+                            >svg {
+                                width: 14px;
+                                min-width: 14px;
+                                height: 14px;
+                                margin-left: 4px;
+                                fill: var(--split-border-color);
+                            }
                         }
 
                         >.arrow {
@@ -367,6 +375,7 @@
                             box-sizing: border-box;
                             width: 100%;
                             padding: 0;
+                            max-height: none !important;
 
                             @include outline();
 
diff --git a/lib/ui/grid/column.js b/lib/ui/grid/column.js
index 7313e1b..a16c361 100644
--- a/lib/ui/grid/column.js
+++ b/lib/ui/grid/column.js
@@ -1,7 +1,7 @@
 import { global } from "../../utility";
 import { createElement } from "../../functions";
 import { createIcon } from "../icon";
-import { createCheckbox } from "../checkbox";
+import { createCheckbox, createRadiobox } from "../checkbox";
 // import { setTooltip } from "../tooltip";
 import { Dropdown } from "../dropdown";
 import { convertCssStyle } from "../extension";
@@ -66,8 +66,8 @@ export class GridColumn {
      * @param {Function} trigger - 编辑事件回调函数
      * @param {any} trigger.e - 该参数会传递给 [getValue]{@linkcode GridColumn.getValue} 方法
      * @param {GridColumnDefinition} col - 列定义对象
-     * @param {HTMLElement} container - 父容器元素
-     * @param {GridItemWrapper} wrapper - 行包装对象，其 `values` 属性为行数据对象
+     * @param {HTMLElement} [container] - 父容器元素
+     * @param {GridItemWrapper} [wrapper] - 行包装对象，其 `values` 属性为行数据对象
      * @returns {HTMLElement} 返回创建的编辑状态的单元格元素
      * @virtual
      */
@@ -351,6 +351,18 @@ export class GridDropdownColumn extends GridColumn {
         return drop.create();
     }
 
+    /**
+     * @ignore
+     * @param {HTMLElement} element 
+     * @returns {HTMLElement}
+     */
+    static getElement(element) {
+        if (element.tagName === 'DIV') {
+            return element.children[0].children[0];
+        }
+        return element;
+    }
+
     /**
      * @private
      * @param {HTMLElement} element 
@@ -543,7 +555,8 @@ export class GridCheckboxColumn extends GridColumn {
      * @param {boolean} val 
      */
     static setValue(element, val) {
-        element.querySelector('input').checked = val;
+        // element.querySelector('input').checked = val;
+        element.children[0].checked = val;
     }
 
     /**
@@ -573,7 +586,8 @@ export class GridCheckboxColumn extends GridColumn {
      */
     static setEnabled(element, enabled) {
         super.setEnabled(element, enabled);
-        element.querySelector('input').disabled = enabled === false;
+        // element.querySelector('input').disabled = enabled === false;
+        element.children[0].disabled = enabled === false;
     }
 
     /**
@@ -582,6 +596,36 @@ export class GridCheckboxColumn extends GridColumn {
     static toString() { return 'GridCheckbox' }
 }
 
+/**
+ * 单选框列
+ * @class
+ * @static
+ * @extends GridCheckboxColumn
+ * @hideconstructor
+ * @ignore
+ */
+export class GridRadioboxColumn extends GridCheckboxColumn {
+    /**
+     * @ignore
+     * @param {Function} trigger 
+     * @param {GridColumnDefinition} _col 
+     * @param {number} index 
+     * @returns {HTMLElement}
+     */
+    static createEdit(trigger, _col, index) {
+        const check = createRadiobox({
+            name: `r_${index}`,
+            onchange: trigger
+        });
+        return check;
+    }
+
+    /**
+     * @ignore
+     */
+    static toString() { return 'GridRadiobox' }
+}
+
 /**
  * 图标列
  * @class
diff --git a/lib/ui/grid/grid.js b/lib/ui/grid/grid.js
index 49ff044..3eea830 100644
--- a/lib/ui/grid/grid.js
+++ b/lib/ui/grid/grid.js
@@ -8,7 +8,7 @@ import { createCheckbox } from "../checkbox";
 import { setTooltip } from "../tooltip";
 import { Popup, showAlert } from "../popup";
 import { convertCssStyle } from "../extension";
-import { GridColumn, GridInputColumn, GridTextColumn, GridDropdownColumn, GridCheckboxColumn, GridIconColumn, GridDateColumn } from "./column";
+import { GridColumn, GridInputColumn, GridTextColumn, GridDropdownColumn, GridCheckboxColumn, GridRadioboxColumn, GridIconColumn, GridDateColumn } from "./column";
 
 /**
  * @author Tsanie Lily <tsorgy@gmail.com>
@@ -59,7 +59,8 @@ const ColumnTypeDefs = {
     3: GridCheckboxColumn,
     4: GridIconColumn,
     5: GridTextColumn,
-    6: GridDateColumn
+    6: GridDateColumn,
+    7: GridRadioboxColumn
 };
 
 let r = lang;
@@ -217,8 +218,10 @@ let r = lang;
  * * Grid.ColumnTypes.Icon - 4: 图标列
  * * Grid.ColumnTypes.Text - 5: 多行文本列
  * * Grid.ColumnTypes.Date - 6: 日期选择列
+ * * Grid.ColumnTypes.Radio - 7: 单选框列
  * @property {string} [caption] - 列标题文本
  * @property {any} [captionStyle] - 列标题的元素样式
+ * @property {string} [captionTooltip] - 列标题的帮助文本
  * @property {number} [width] - 大于 0 则设置为该宽度，否则根据列内容自动调整列宽
  * @property {("left" |"center" | "right")} [align=left] 列对齐方式
  * @property {(boolean | string | GridItemBooleanCallback)} [enabled] - 列是否可用（可编辑），允许以下类型
@@ -389,10 +392,10 @@ let r = lang;
  */
 
 /**
- * 判断复选框列的回调函数
- * @callback ColumnTypesEnumIsCheckbox
+ * 判断列是否始终编辑的回调函数
+ * @callback ColumnTypesEnumIsAlwaysEditing
  * @param {number} type - 列类型
- * @returns {boolean} 返回是否为复选框列
+ * @returns {boolean} 返回是否始终编辑
  */
 
 /**
@@ -414,11 +417,13 @@ const GridColumnTypeEnum = {
     Text: 5,
     /** 6 - 日期选择列 */
     Date: 6,
+    /** 7 - 单选框列 */
+    Radio: 7,
     /**
      * 判断列是否为复选框列
-     * @type {ColumnTypesEnumIsCheckbox}
+     * @type {ColumnTypesEnumIsAlwaysEditing}
      */
-    isCheckbox(type) { return type === 3 }
+    isAlwaysEditing(type) { return type === 3 || type === 7 }
 };
 
 /**
@@ -1039,6 +1044,7 @@ export class Grid {
      * @property {number} Icon=4 - 图标列
      * @property {number} Text=5 - 多行文本列
      * @property {number} Date=6 - 日期选择列
+     * @property {number} Radio=7 - 单选框列
      */
     static get ColumnTypes() { return GridColumnTypeEnum }
 
@@ -2264,7 +2270,7 @@ export class Grid {
                 continue;
             }
             // style
-            const isCheckbox = GridColumnTypeEnum.isCheckbox(col.type);
+            const alwaysEditing = GridColumnTypeEnum.isAlwaysEditing(col.type);
             let type = this._var.colTypes[col.key];
             if (type == null) {
                 if (isNaN(col.type)) {
@@ -2285,7 +2291,7 @@ export class Grid {
                 this._var.needResize = true;
                 sizer.innerText = col.caption ?? '';
                 let width = sizer.offsetWidth + 22;
-                if (!readonly && col.enabled !== false && col.allcheck && isCheckbox) {
+                if (!readonly && col.enabled !== false && col.allcheck && alwaysEditing) {
                     width += 32;
                 }
                 if (col.allowFilter === true) {
@@ -2296,7 +2302,7 @@ export class Grid {
                 }
                 col.width = width;
             }
-            col.align ??= isCheckbox ? 'center' : 'left';
+            col.align ??= alwaysEditing ? 'center' : 'left';
             if (col.sortable !== false) {
                 col.sortable = true;
             }
@@ -2338,7 +2344,7 @@ export class Grid {
                 wrapper.style.justifyContent = 'center';
             }
             th.appendChild(wrapper);
-            if (!readonly && col.enabled !== false && col.allcheck && isCheckbox) {
+            if (!readonly && col.enabled !== false && col.allcheck && alwaysEditing) {
                 const check = createCheckbox({
                     onchange: e => this._onColumnAllChecked(col, e.target.checked)
                 });
@@ -2360,6 +2366,11 @@ export class Grid {
                 }
                 wrapper.appendChild(caption);
             }
+            if (col.captionTooltip != null) {
+                const help = createIcon('fa-solid', 'question-circle');
+                wrapper.appendChild(help);
+                setTooltip(help, col.captionTooltip, false, this._var.parent);
+            }
             // order arrow
             if (col.sortable) {
                 th.appendChild(createElement('layer', 'arrow'));
@@ -2539,21 +2550,20 @@ export class Grid {
                         if (style !== '') {
                             cell.style.cssText = style;
                         }
-                        let element;
-                        if (!readonly && GridColumnTypeEnum.isCheckbox(col.type)) {
-                            element = GridCheckboxColumn.createEdit(e => this._onRowChanged(e, exists + i, col, e.target.checked, cell));
-                            // this._var.colTypes[col.key] = GridCheckboxColumn;
-                        } else {
-                            let type = this._var.colTypes[col.key];
-                            if (type == null) {
-                                if (isNaN(col.type)) {
-                                    type = col.type;
-                                } else {
-                                    type = ColumnTypeDefs[col.type];
-                                }
-                                type ??= GridColumn;
-                                this._var.colTypes[col.key] = type;
+                        let type = this._var.colTypes[col.key];
+                        if (type == null) {
+                            if (isNaN(col.type)) {
+                                type = col.type;
+                            } else {
+                                type = ColumnTypeDefs[col.type];
                             }
+                            type ??= GridColumn;
+                            this._var.colTypes[col.key] = type;
+                        }
+                        let element;
+                        if (!readonly && GridColumnTypeEnum.isAlwaysEditing(col.type)) {
+                            element = type.createEdit(e => this._onRowChanged(e, exists + i, col, e.target.checked, cell), col, exists + i);
+                        } else {
                             element = type.create(col, i, this);
                             if (typeof col.class === 'string') {
                                 type.setClass(element, col.class);
@@ -2704,10 +2714,10 @@ export class Grid {
                     virtualCell.background = bg;
                     cell.style.backgroundColor = bg;
                 }
-                const isCheckbox = GridColumnTypeEnum.isCheckbox(col.type);
-                const type = isCheckbox ? GridCheckboxColumn : this._var.colTypes[col.key] ?? GridColumn;
+                const alwaysEditing = GridColumnTypeEnum.isAlwaysEditing(col.type);
+                const type = this._var.colTypes[col.key] ?? GridColumn;
                 let element;
-                if (!readonly && !isCheckbox && typeof type.createEdit === 'function') {
+                if (!readonly && !alwaysEditing && typeof type.createEdit === 'function') {
                     const oldValue = vals.__editing?.[col.key];
                     if (oldValue !== undefined) {
                         delete vals.__editing[col.key];
@@ -2759,7 +2769,7 @@ export class Grid {
                         delete virtualCell.enabled;
                     }
                     if (typeof type.setEditing === 'function') {
-                        type.setEditing(element, virtualRow.editing);
+                        type.setEditing(element, selected);
                     }
                 }
                 if (val !== virtualCell.value) {
@@ -2813,12 +2823,16 @@ export class Grid {
                 } else if (typeof col.styleFilter === 'function') {
                     style = col.styleFilter(item);
                 }
+                const separateElement = typeof type.getElement === 'function';
+                let maxHeight;
                 if (col.maxLines > 0) {
-                    const maxHeight = `${col.maxLines * this.lineHeight}px`;
-                    if (style == null) {
-                        style = { 'max-height': maxHeight };
-                    } else {
-                        style['max-height'] = maxHeight;
+                    maxHeight = `${col.maxLines * this.lineHeight}px`;
+                    if (!separateElement) {
+                        if (style == null) {
+                            style = { 'max-height': maxHeight };
+                        } else {
+                            style['max-height'] = maxHeight;
+                        }
                     }
                 }
                 const styleText = style != null ? convertCssStyle(style) : '';
@@ -2830,6 +2844,12 @@ export class Grid {
                         element.style.cssText = '';
                     }
                 }
+                if (separateElement && maxHeight != null) {
+                    const e = type.getElement(element);
+                    if (e != null) {
+                        e.style['max-height'] = maxHeight;
+                    }
+                }
                 if (col.attrs != null) {
                     let attrs = col.attrs;
                     if (typeof attrs === 'function') {
@@ -3442,7 +3462,7 @@ export class Grid {
                     if (typeof col.onFilterOk === 'function') {
                         col.onFilterOk.call(this, col, array);
                     } else {
-                        if (GridColumnTypeEnum.isCheckbox(col.type)) {
+                        if (GridColumnTypeEnum.isAlwaysEditing(col.type)) {
                             col.filterValues = array.map(a => a.Value);
                         } else {
                             const nullValue = col.filterAllowNull ? null : '';
@@ -3501,7 +3521,7 @@ export class Grid {
         const content = createElement('div', 'filter-content');
         content.style.top = `${rowHeight}px`;
         this._set(col.key, 'filterSource', array);
-        const propKey = GridColumnTypeEnum.isCheckbox(col.type) ? 'Value' : 'DisplayValue';
+        const propKey = GridColumnTypeEnum.isAlwaysEditing(col.type) ? 'Value' : 'DisplayValue';
         const nullValue = col.filterAllowNull ? null : '';
         const allSelected = !Array.isArray(col.filterValues);
         for (let item of array) {
@@ -4021,8 +4041,7 @@ export class Grid {
                 if (cell == null) {
                     return;
                 }
-                const type = GridColumnTypeEnum.isCheckbox(c.type) ?
-                    GridCheckboxColumn : this._var.colTypes[c.key] ?? GridColumn;
+                const type = this._var.colTypes[c.key] ?? GridColumn;
                 if (typeof type.setEnabled === 'function') {
                     if (typeof c.enabled === 'function') {
                         enabled = c.enabled(item);