diff --git a/lib/ui/grid/grid.js b/lib/ui/grid/grid.js
index 222328b..4862c8a 100644
--- a/lib/ui/grid/grid.js
+++ b/lib/ui/grid/grid.js
@@ -379,6 +379,7 @@ class GridColumnDefinition {
     /**
      * 大于 0 则设置为该宽度，否则根据列内容自动调整列宽
      * @type {number}
+     * @default 50
      * @ignore
      */
     width;
@@ -750,6 +751,7 @@ const GridColumnDirection = {
  * @property {string} [langs.requirePrompt=All sort criteria must have...]
  * @property {string} [langs.duplicatePrompt={column} is being sorted more than once...]
  * @property {number} [virtualCount=100] - 行数大于等于该值则启用虚模式
+ * @property {boolean} [autoResize=true] - 未设置宽度的列自动调整列宽
  * @property {number} [rowHeight=36] - 表格行高
  * @property {number} [lineHeight=24] - 文本行高（多行文本列计算高度时使用）
  * @property {string} [filterIcon=filter] - 列头过滤图标，旧版本样式（横着三个点）需修改为 `"ellipsis-h"`
@@ -1151,6 +1153,13 @@ export class Grid {
      * @ignore
      */
     virtualCount = 100;
+    /**
+     * 未设置宽度的列自动调整列宽
+     * @type {boolean}
+     * @default true
+     * @ignore
+     */
+    autoResize = true;
     /**
      * 表格行高
      * @type {number}
@@ -1431,9 +1440,6 @@ export class Grid {
      */
     get source() { return this._var.currentSource?.map(s => s.values) }
     set source(list) {
-        if (this._var.el == null) {
-            throw new Error('grid has not been initialized.')
-        }
         if (!Array.isArray(list)) {
             throw new Error('source is not an Array.')
         }
@@ -1664,7 +1670,7 @@ export class Grid {
         this._var.scrollLeft = 0;
         this._var.rowCount = -1;
 
-        this.resize(true, null, () => {
+        this.resize(true, false, () => {
             if (this.sortIndex >= 0) {
                 this.sortColumn(true);
             } else if (this.sortArray?.length > 0) {
@@ -1865,7 +1871,7 @@ export class Grid {
             if (parent == null) {
                 return;
             }
-            const rowIndex = parent.classList.contains('ui-grid-total-row') ? -1 : indexOfParent(parent);
+            const rowIndex = parent.classList.contains('ui-grid-total-row') ? -1 : this._tableRows.indexOf(parent);
             let colIndex = indexOfParent(target) - (this.expandable ? 1 : 0);
             if (colIndex >= this.columns.length) {
                 colIndex = -1;
@@ -1921,7 +1927,7 @@ export class Grid {
             } else if (this.sortArray?.length > 0) {
                 this.sort(true);
             } else {
-                this.reload();
+                this.resize(true, true);
             }
         }
     }
@@ -1955,7 +1961,7 @@ export class Grid {
             return;
         }
         const body = this._var.refs.body;
-        const top = this.headerVisible === false ? 0 : this._var.refs.header.offsetHeight;
+        const top = this.headerVisible === false ? 0 : this.rowHeight; // this._var.refs.header.offsetHeight;
 
         let height = this.height;
         if (height === 0) {
@@ -2061,10 +2067,10 @@ export class Grid {
                 }
             });
         } else {
-            const children = this._var.refs.table.children;
-            this._var.headerHeight = children[0].offsetHeight;
-            if (children.length > 2) {
-                this._var.footerHeight = children[2].offsetHeight;
+            // const children = this._var.refs.table.children;
+            this._var.headerHeight = this.rowHeight; // children[0].offsetHeight;
+            if (this.total != null) {
+                this._var.footerHeight = this._var.refs.table.children[2].offsetHeight;
             }
         }
     }
@@ -2469,8 +2475,11 @@ export class Grid {
                 type ??= GridColumn;
                 this._var.colTypes[col.key] = type;
             }
-            if (col.width > 0 || col.shrink || typeof type.createCaption === 'function') {
+            if (col.width > 0 || col.shrink || !this.autoResize || typeof type.createCaption === 'function') {
                 // col.autoResize = false;
+                if (isNaN(col.width) || col.width <= 0) {
+                    col.width = 50;
+                }
             } else {
                 this._set(col.key, 'autoResize', true);
                 this._var.needResize = true;
@@ -3060,7 +3069,7 @@ export class Grid {
             }
         }
         // footer
-        const children = this._var.refs.table.children;
+        // const children = this._var.refs.table.children;
         const hasTotal = this.total != null;
         if (hasTotal) {
             const footerCells = this._footerCells;
@@ -3080,9 +3089,9 @@ export class Grid {
                 }
             }
         }
-        this._var.headerHeight = children[0].offsetHeight;
+        this._var.headerHeight = this.rowHeight; // children[0].offsetHeight;
         if (hasTotal) {
-            this._var.footerHeight = children[2].offsetHeight;
+            this._var.footerHeight = this._var.refs.table.children[2].offsetHeight;
             const footerOffset = this._var.refs.table.offsetHeight - this._var.el.clientHeight;
             if (this._var.footerOffset !== footerOffset) {
                 this._var.footerOffset = footerOffset;