[英]Update Button for Access Database via DataGridView Using OLEDB in VB.NET (Visual Studio 2013)
我已将 Access 数据库链接到我的程序。 它按预期填充 DataGridView,以便程序的一部分工作。 但是,我添加到 DataGridView 的新数据不会显示,我不知道我的代码有什么问题。
任何人都可以看到任何错误或我错过的东西会导致代码不符合要求的 function 吗? 先感谢您:)
Imports System.Data.OleDb
Public Class Form1
Dim j As OleDbConnection
Dim a As OleDbDataAdapter
Dim s As DataSet
Dim lokasidb As String
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Call jaringan()
a = New OleDbDataAdapter("Select * From datadairy", j)
s = New DataSet
s.Clear()
a.Fill(s, "datadairy")
DataGridDairy.DataSource = (s.Tables("datadairy"))
End Sub
Private Sub eksekusiSql(ByVal Sql As String)
Dim objcmd As New System.Data.OleDb.OleDbCommand
Call jaringan()
Try
objcmd.Connection = j
objcmd.CommandType = CommandType.Text
objcmd.CommandText = Sql
objcmd.ExecuteNonQuery()
objcmd.Dispose()
MsgBox("The new data successfully saved", vbInformation)
Catch ex As Exception
MsgBox("The new data is failed to save", vbInformation)
End Try
End Sub
Sub jaringan()
lokasidb = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\19106060045_Tugas Modul 5.accdb"
j = New OleDbConnection(lokasidb)
If j.State = ConnectionState.Closed Then j.Open()
End Sub
Private Sub ButtonAdd_Click(sender As Object, e As EventArgs) Handles ButtonAdd.Click
Dim No As String = TextNo.Text
Dim Jenis_Susu_Sapi As String = TextSusu.Text
Dim Jenis_Olahan As String = TextOlahan.Text
Dim Harga_per_kg As String = TextHarga.Text
Dim Tempat_Penjualan As String = TextPasar.Text
Dim Sql_Simpan_Dairy As String = "Insert into datadairy (No, Jenis_Susu_Sapi, Jenis_Olahan, Harga_per_kg, Tempat_Penjualan) values (" + No + ",'" + Jenis_Susu_Sapi + "','" + Jenis_Olahan + "','" + Harga_per_kg + "','" + Tempat_Penjualan + "')"
eksekusiSql(Sql_Simpan_Dairy)
ShowDairydata()
End Sub
Public Sub ShowDairydata()
Call jaringan()
a = New OleDbDataAdapter("Select * from datadairy", j)
s = New DataSet
s.Clear()
a.Fill(s, "datadairy")
DataGridDairy.DataSource = (s.Tables("datadairy"))
End Sub
将新数据添加到数据库后,只需使用
'DataGridDairy.Databind()'
刷新。
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