The value of this property is 0.0 if the text editing control is not configured to support scrolling.

如果文本编辑控件未配置为支持滚动，则此属性的值为0.0。

youdao

The value of this property is 0.0 if the text editing control is not configured to support scrolling.

如果文本编辑控件未配置为支持滚动，则此属性的值为0.0。

youdao