Message in Chinese (Simplified) (中文(简体))
只有当 TreeView 绑定到使用 DataSourceID 属性的数据源控件时或处理 TreeNodePopulate 事件时,才支持 PopulateOnDemand。
Unlocalized message
PopulateOnDemand only supported when binding the TreeView to a data source control using the DataSourceID property or when the TreeNodePopulate event is handled.
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