With Adodc2
.Mode = adModeReadWrite
.ConnectionString = provider & ";" & datasource
.CommandType = adCmdTable
.RecordSource = "gongyu"
.Refresh
End With

With Adodc3
.Mode = adModeReadWrite
.ConnectionString = provider & ";" & datasource
.CommandType = adCmdTable
.RecordSource = "class"
.Refresh
End With

With Adodc4
.Mode = adModeReadWrite
.ConnectionString = provider & ";" & datasource
.CommandType = adCmdTable
.RecordSource = "weisheng"
.Refresh
End With

With Adodc5
.Mode = adModeReadWrite
.ConnectionString = provider & ";" & datasource
End With

With Adodc6
.Mode = adModeReadWrite
.ConnectionString = provider & ";" & datasource
.CommandType = adCmdTable
.RecordSource = "dengji"
.Refresh
End With

With Adodc7
.Mode = adModeReadWrite
.ConnectionString = provider & ";" & datasource
.CommandType = adCmdTable
.RecordSource = "qinshi"
.Refresh
End With

With Adodc9
.Mode = adModeReadWrite
.ConnectionString = provider & ";" & datasource
.CommandType = adCmdTable
.RecordSource = "zichan"
.Refresh
End With
treeview部分树形显示的初始化在这里已经做了几个过程，调用即可。
4.3系统设置
4.3.1用户管理
①界面效果图

图4.3用户管理
② 界面制作与实现方法
    这个界面总体来说各个控件比较简单，但是作为一个添加删除管理员的操作，它已经连接到了数据库，与数据库的yonghu表相联。各个控件也与数据库中表的字段绑定。
 在窗体初始化的时候要判断当前数据库表中是否有记录，如果没有记录那么有些按钮将会被设置成为失效状态，否则会出现错误。设置代码如下：
Dim provider As String
Dim datasource As String
provider = "provider=Microsoft.jet.oledb.4.0"
datasource = "data source=" & App.Path & "\DB.mdb"
With Adodc1
.Mode = adModeReadWrite
.ConnectionString = prov

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