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| Public Class Form1
Public strCon As String
Public con As OleDb.OleDbConnection
Public daPar As OleDb.OleDbDataAdapter
Public daChd As OleDb.OleDbDataAdapter
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
strCon = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source='C:\bd.accdb'"
con = New OleDb.OleDbConnection(strCon)
Try
con.Open()
Console.WriteLine("Соединение установлено успешно")
Catch ex As Exception
Console.WriteLine("Соединение не установлено")
End Try
Dim SelectCommand1 As New OleDb.OleDbCommand("Select CID,Name, Sname, Oname from Customers", con)
Dim SelectCommand2 As New OleDb.OleDbCommand("Select CID,OID,Order_Date from Orders", con)
daPar = New OleDb.OleDbDataAdapter(SelectCommand1)
daChd = New OleDb.OleDbDataAdapter(SelectCommand2)
Dim InsertCommand1 As OleDb.OleDbCommand = New OleDb.OleDbCommand("Insert into Customers(CID,Name, Sname, Oname) values(:CID ,:Name, :Sname, :Oname) ", con)
daPar.InsertCommand = InsertCommand1
InsertCommand1.Parameters.Add(New OleDb.OleDbParameter("sname", _
System.Data.OleDb.OleDbType.VarChar, 30, System.Data.ParameterDirection.Input, _
True, CType(0, Byte), CType(0, Byte), "sname", System.Data.DataRowVersion.Current, Nothing))
InsertCommand1.Parameters.Add(New OleDb.OleDbParameter("name", _
System.Data.OleDb.OleDbType.VarChar, 30, System.Data.ParameterDirection.Input, _
True, CType(0, Byte), CType(0, Byte), "name", System.Data.DataRowVersion.Current, Nothing))
InsertCommand1.Parameters.Add(New OleDb.OleDbParameter("oname",
System.Data.OleDb.OleDbType.Integer, 5, System.Data.ParameterDirection.Input,
True, CType(0, Byte), CType(0, Byte), "oname", System.Data.DataRowVersion.Current, Nothing))
InsertCommand1.Parameters.Add(New OleDb.OleDbParameter("CID",
System.Data.OleDb.OleDbType.Integer, 5, System.Data.ParameterDirection.Input,
True, CType(0, Byte), CType(0, Byte), "CID", System.Data.DataRowVersion.Current, Nothing))
Dim UpdateCommand1 As New OleDb.OleDbCommand("Update Customers set name = :name,sname = :sname,oname = :oname where CID = :CID", con)
daPar.UpdateCommand = UpdateCommand1
UpdateCommand1.Parameters.Add(New OleDb.OleDbParameter("sname", _
System.Data.OleDb.OleDbType.VarChar, 30, System.Data.ParameterDirection.Input, _
True, CType(0, Byte), CType(0, Byte), "sname", System.Data.DataRowVersion.Current, Nothing))
UpdateCommand1.Parameters.Add(New OleDb.OleDbParameter("name", _
System.Data.OleDb.OleDbType.VarChar, 30, System.Data.ParameterDirection.Input, _
True, CType(0, Byte), CType(0, Byte), "name", System.Data.DataRowVersion.Current, Nothing))
UpdateCommand1.Parameters.Add(New OleDb.OleDbParameter("oname", _
System.Data.OleDb.OleDbType.VarChar, 30, System.Data.ParameterDirection.Input, _
True, CType(0, Byte), CType(0, Byte), "oname", System.Data.DataRowVersion.Current, Nothing))
UpdateCommand1.Parameters.Add(New OleDb.OleDbParameter("CID",
System.Data.OleDb.OleDbType.Integer, 5, System.Data.ParameterDirection.Input,
True, CType(0, Byte), CType(0, Byte), "CID", System.Data.DataRowVersion.Current, Nothing))
Dim InsertCommand2 As OleDb.OleDbCommand = New OleDb.OleDbCommand("Insert into Orders(CID,Order_Date) values(:CID,:Order_Date)", con)
daChd.InsertCommand = InsertCommand2
InsertCommand2.Parameters.Add(New OleDb.OleDbParameter("cid", _
System.Data.OleDb.OleDbType.Integer, 5, System.Data.ParameterDirection.Input, _
True, CType(0, Byte), CType(0, Byte), "cid", System.Data.DataRowVersion.Current, Nothing))
InsertCommand2.Parameters.Add(New OleDb.OleDbParameter("ORDER_DATE", _
System.Data.OleDb.OleDbType.Date, 10, System.Data.ParameterDirection.Input, _
True, CType(0, Byte), CType(0, Byte), "ORDER_DATE", System.Data.DataRowVersion.Current, Nothing))
InsertCommand2.Parameters.Add(New OleDb.OleDbParameter("OID",
System.Data.OleDb.OleDbType.Integer, 5, System.Data.ParameterDirection.Input,
True, CType(0, Byte), CType(0, Byte), "OID", System.Data.DataRowVersion.Current, Nothing))
Dim UpdateCommand2 As New OleDb.OleDbCommand("Update Orders set Name = :name , SName = :sname,FatherID = :FatherID,MotherID = :MotherID,GrouCID = :GrouCID where OID = :OID", con)
daChd.UpdateCommand = UpdateCommand2
UpdateCommand2.Parameters.Add(New OleDb.OleDbParameter("cid", _
System.Data.OleDb.OleDbType.Integer, 5, System.Data.ParameterDirection.Input, _
True, CType(0, Byte), CType(0, Byte), "cid", System.Data.DataRowVersion.Current, Nothing))
UpdateCommand2.Parameters.Add(New OleDb.OleDbParameter("ORDER_DATE", _
System.Data.OleDb.OleDbType.Date, 10, System.Data.ParameterDirection.Input, _
True, CType(0, Byte), CType(0, Byte), "ORDER_DATE", System.Data.DataRowVersion.Current, Nothing))
UpdateCommand2.Parameters.Add(New OleDb.OleDbParameter("OID",
System.Data.OleDb.OleDbType.Integer, 5, System.Data.ParameterDirection.Input,
True, CType(0, Byte), CType(0, Byte), "OID", System.Data.DataRowVersion.Current, Nothing))
Dim DeleteCommand1 As New OleDb.OleDbCommand("Delete from Customers where CID = :CID", con)
DeleteCommand1.Parameters.Add(New OleDb.OleDbParameter("CID", _
System.Data.OleDb.OleDbType.Integer, 5, System.Data.ParameterDirection.Input, _
True, CType(0, Byte), CType(0, Byte), "CID", System.Data.DataRowVersion.Current, Nothing))
daPar.DeleteCommand = DeleteCommand1
Dim DeleteCommand2 As New OleDb.OleDbCommand("Delete from Orders where OID = :OID", con)
DeleteCommand2.Parameters.Add(New OleDb.OleDbParameter("OID", _
System.Data.OleDb.OleDbType.Integer, 5, System.Data.ParameterDirection.Input, _
True, CType(0, Byte), CType(0, Byte), "OID", System.Data.DataRowVersion.Current, Nothing))
daChd.DeleteCommand = DeleteCommand2
daPar.Fill(DataSet1, "Customers")
daChd.Fill(DataSet1, "Orders")
con.Close()
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Try
If DataSet1.HasChanges Then
daPar.Update(DataSet1, "Customers")
daChd.Update(DataSet1, "Orders")
Else
MessageBox.Show("изменения отсутствуют")
End If
Catch ex As Exception
MessageBox.Show("данные обновить не удалось")
End Try
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
DataSet1.RejectChanges()
End Sub
Private Sub DataGridView1_CellContentClick(sender As Object, e As DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick
End Sub
Private Sub CustomersBindingSource_CurrentChanged(sender As Object, e As EventArgs) Handles CustomersBindingSource.CurrentChanged
End Sub
End Class |
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