From d47ba09298fb7d3c50b3d85ad5870aec15668869 Mon Sep 17 00:00:00 2001
From: betavs <betavs@qq.com>
Date: Wed, 10 Jun 2026 20:30:00 +0800
Subject: [PATCH 1/3] fix(table): handle custom class names for table columns

---
 packages/uniapp-components/table/table.vue | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/packages/uniapp-components/table/table.vue b/packages/uniapp-components/table/table.vue
index 6cdfd3669..029468252 100644
--- a/packages/uniapp-components/table/table.vue
+++ b/packages/uniapp-components/table/table.vue
@@ -295,15 +295,30 @@ export default {
         return styles.join('; ');
       },
 
+      getCustomClassName(className) {
+        const calcClassName = (name) => {
+          if (typeof name === 'function') {
+            return name() || '';
+          }
+          return name;
+        };
+
+        if (Array.isArray(className)) {
+          return className.map(calcClassName);
+        }
+        return [calcClassName(className)];
+      },
+
       getThClassName(col, colIndex) {
         const classes = [];
         if (col.colKey) classes.push(`${name}__th-${col.colKey}`);
         if (col.align && col.align !== 'left') classes.push(`${prefix}-align-${col.align}`);
         if (col.fixed === 'left') classes.push(`${name}__cell--fixed-left`);
         if (col.fixed === 'right') classes.push(`${name}__cell--fixed-right`);
+        if (col.className) classes.push(...this.getCustomClassName(col.className));
         if (colIndex === this.lastFixedLeftIndex) classes.push(`${name}__cell--fixed-left-last`);
         if (colIndex === this.firstFixedRightIndex) classes.push(`${name}__cell--fixed-right-first`);
-        return classes.join(' ');
+        return classes;
       },
 
       updateRenderData() {

From 49bf26795d38891fad77782e4318ba249d5ce496 Mon Sep 17 00:00:00 2001
From: novlan1 <1576271227@qq.com>
Date: Fri, 12 Jun 2026 16:56:23 +0800
Subject: [PATCH 2/3] =?UTF-8?q?feat(table):=20=E9=98=B2=E6=AD=A2=E5=B0=8F?=
 =?UTF-8?q?=E7=A8=8B=E5=BA=8F=E7=BC=96=E8=AF=91=E6=8A=A5=E9=94=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 packages/uniapp-components/table/table.vue | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/uniapp-components/table/table.vue b/packages/uniapp-components/table/table.vue
index 029468252..9c9576d87 100644
--- a/packages/uniapp-components/table/table.vue
+++ b/packages/uniapp-components/table/table.vue
@@ -295,7 +295,7 @@ export default {
         return styles.join('; ');
       },
 
-      getCustomClassName(className) {
+      getCustomClassName(className = '') {
         const calcClassName = (name) => {
           if (typeof name === 'function') {
             return name() || '';
@@ -318,7 +318,7 @@ export default {
         if (col.className) classes.push(...this.getCustomClassName(col.className));
         if (colIndex === this.lastFixedLeftIndex) classes.push(`${name}__cell--fixed-left-last`);
         if (colIndex === this.firstFixedRightIndex) classes.push(`${name}__cell--fixed-right-first`);
-        return classes;
+        return classes.join(' ');
       },
 
       updateRenderData() {

From 702ff57e51a1ff7765baa9ac60c11d98097ec37c Mon Sep 17 00:00:00 2001
From: tdesign-bot <tdesign@tencent.com>
Date: Fri, 12 Jun 2026 08:57:10 +0000
Subject: [PATCH 3/3] chore: stash changelog [ci skip]

---
 packages/tdesign-uniapp/.changelog/pr-4500.md | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 packages/tdesign-uniapp/.changelog/pr-4500.md

diff --git a/packages/tdesign-uniapp/.changelog/pr-4500.md b/packages/tdesign-uniapp/.changelog/pr-4500.md
new file mode 100644
index 000000000..f0f4b2369
--- /dev/null
+++ b/packages/tdesign-uniapp/.changelog/pr-4500.md
@@ -0,0 +1,6 @@
+---
+pr_number: 4500
+contributor: betavs
+---
+
+- fix(Table): 修复列配置中的类名选项无效的问题 @betavs ([#4500](https://github.com/Tencent/tdesign-miniprogram/pull/4500))