The drop-down list of associated controls in the Data Sources window is only available when a valid drop target (such as a form) is the active window.

 
  • 僅當活動(dòng)窗口為有效的放置目標(如窗體)時(shí)“數據源”窗口中的關(guān)聯(lián)控件下拉列表才可用。
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