diff --git a/CHANGELOG.md b/CHANGELOG.md
index cb1cf16659827dd46f9516fad792c3a8b5e5e895..6517819e5fb2aef3fc38081cfdf1f75995455de8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@
 
 - 新增电子签名编辑器样式，基于文本框编辑器进行扩展，编辑器样式代码名称为：SIGNATURE
 
+### Changed
+
+- 调整属性列自定义参数（columntype）为小写，此参数的作用是允许在表格列中预览文件数据，配置示例：columntype=attachment
+
 ## [0.7.41-alpha.20] - 2025-08-24
 
 ### Added
diff --git a/src/control/grid/grid-column/grid-field-column/grid-field-column.tsx b/src/control/grid/grid-column/grid-field-column/grid-field-column.tsx
index 39e1a9be9222332ec7c0ddb8769e32845709da36..f42ef98712e79e267f7b62685d363375a5f4c615 100644
--- a/src/control/grid/grid-column/grid-field-column/grid-field-column.tsx
+++ b/src/control/grid/grid-column/grid-field-column/grid-field-column.tsx
@@ -32,7 +32,7 @@ export const GridFieldColumn = defineComponent({
 
     const zIndex = props.controller.grid.state.zIndex;
 
-    const columnType = props.controller.model.userParam?.columnType;
+    const columnType = props.controller.model.userParam?.columntype;
 
     /**
      * 单元格点击事件
diff --git a/src/control/grid/grid/grid.tsx b/src/control/grid/grid/grid.tsx
index aacdb04f98db26464654efb7a6a1273e647e49a4..b158561c61465263db461d5c0d753f117353f197 100644
--- a/src/control/grid/grid/grid.tsx
+++ b/src/control/grid/grid/grid.tsx
@@ -103,7 +103,7 @@ export function renderFieldColumn(
   const panel = controlRenders.find(
     renderItem => renderItem.renderType === 'LAYOUTPANEL',
   )?.layoutPanel;
-  const columnType = c.model.userParam?.columnType;
+  const columnType = c.model.userParam?.columntype;
   if (panel) {
     content = (
       <iBizControlShell