还可以这样: Forms("窗口1").Controls("TreeView1").Nodes.Clear If Tables("表A").Cols.Contains("mlsh") Then for each dr as DataRow in DataTables("表A").DataRows dr("mlsh") = "【" & dr("第一列") & "】" & dr("第二列") next Forms("窗口1").Controls("TreeView1").BuildDataTree("表A", "","mlsh") else DataTables("表A").DataCols.Add("mlsh", GetType(string),50) for each dr as DataRow in DataTables("表A").DataRows dr("mlsh") = "【" & dr("第一列") & "】" & dr("第二列") next Forms("窗口1").Controls("TreeView1").BuildDataTree("表A", "","mlsh") End If
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