diff --git a/packages/plugins/@nocobase/plugin-data-visualization/src/client/hooks/transformer.ts b/packages/plugins/@nocobase/plugin-data-visualization/src/client/hooks/transformer.ts
index c10c1e56b7..365df0d588 100644
--- a/packages/plugins/@nocobase/plugin-data-visualization/src/client/hooks/transformer.ts
+++ b/packages/plugins/@nocobase/plugin-data-visualization/src/client/hooks/transformer.ts
@@ -20,7 +20,6 @@ export const useFieldSelectProps = (fields: FieldOption[]) =>
         if (!value) {
           typeField.setState({
             value: null,
-            disabled: true,
           });
         }
         const fieldProps = selectedFields.find((field) => field.value === value);
@@ -41,13 +40,11 @@ export const useFieldSelectProps = (fields: FieldOption[]) =>
         if (supports.includes(key)) {
           typeField.setState({
             value: key,
-            disabled: true,
           });
           return;
         }
         typeField.setState({
           value: null,
-          disabled: false,
         });
       },
     };
diff --git a/packages/plugins/@nocobase/plugin-data-visualization/src/client/transformers.ts b/packages/plugins/@nocobase/plugin-data-visualization/src/client/transformers.ts
index 0db494e34e..796e50c7ad 100644
--- a/packages/plugins/@nocobase/plugin-data-visualization/src/client/transformers.ts
+++ b/packages/plugins/@nocobase/plugin-data-visualization/src/client/transformers.ts
@@ -160,7 +160,7 @@ const transformers: {
           { label: '1.000', value: 3 },
         ],
       },
-      fn: (val: number, precision: number) => val.toFixed(precision),
+      fn: (val: number, precision: number) => Number(val.toFixed(precision)),
     },
     Separator: {
       schema: {