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帮助,我正在使用visual studio ultimate 2012 VB在我的应用程序上更新功能。编辑/更新功能无法正常工作
当我修复了我的编码错误后,我用f5调试程序。但是,当我试图更新datagridview上的数据时,即使认为消息框“数据已更新”,也不会改变。
我该如何解决这个问题?
这里是更新功能的编码:
Form1中:
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
ClassSiswa.ubahdata(New SqlConnection, (txt_nis.Text), (txt_nisn.Text), (txt_namasiswa.Text), (cmb_kelaminsiswa.Text), (txt_kotalahir.Text), (DTP_siswa.Text), (cmb_agamasiswa.Text), (txt_beratsiswa.Text), (txt_tinggi_badan.Text))
datagridview()
End Sub
Private Sub UpdateDataSiswa()
ClassSiswa.Nis = txt_nis.Text
ClassSiswa.Nisn = txt_nisn.Text
ClassSiswa.Nama_Siswa = txt_namasiswa.Text
ClassSiswa.Tanggal_Lahir = DTP_siswa.Text
ClassSiswa.Jenis_Kelamin = cmb_kelaminsiswa.Text
ClassSiswa.Kota_Lahir = txt_kotalahir.Text
ClassSiswa.Agama = cmb_agamasiswa.Text
ClassSiswa.Tinggi_Badan = txt_tinggi_badan.Text
ClassSiswa.Berat_Badan = txt_beratsiswa.Text
ClassSiswa.Updatesiswa(ClassSiswa.opencon, (txt_nis.Text))
datagridview()
End Sub
classSiswa:
Public Shared Sub ubahdata(ByVal _cn As SqlClient.SqlConnection, ByVal _Nis As String, ByVal _Nisn As String, ByVal _nama_siswa As String, ByVal _jenis_kelamin As String, ByVal _kota_lahir As String, ByVal _tanggal_lahir As String, ByVal _agama As String, ByVal _berat_badan As String, ByVal tinggi_badan As String)
Dim sql As New SqlClient.SqlCommand
sql.Connection = _cn
sql.CommandType = CommandType.Text
sql.CommandText = "update siswa set nis='" & Nis & "',nisn='" & Nisn & "',nama_siswa='" & Nama_Siswa & "',jenis_kelamin='" & Jenis_Kelamin & "' ,kota_lahir='" & Kota_Lahir & "',tanggal_lahir='" & Tanggal_Lahir & "'agama='" & Agama & "'berat_badan='" & Berat_Badan & "',tinggi_badan='" & tinggi_badan & "'"
MessageBox.Show(" Data Telah Diupdate")
ClassSiswa.closecon()
End Sub
Public Shared Sub Updatesiswa(ByVal _Cn As SqlClient.SqlConnection, ByVal _nis As String)
Dim sql As SqlClient.SqlCommand
sql = New SqlClient.SqlCommand
sql.Connection = _Cn
sql.CommandType = CommandType.Text
sql.CommandText = "Update siswa Set nis = '" & Nis & "', nisn = '" & Nisn & "' where nis = '" & _nis & "'"
sql.ExecuteNonQuery()
End Sub
这不提供问题的答案。要批评或要求作者澄清,请在其帖子下方留言。 –
datagrid显然不会被更新,因为名为“ubahdata”的更新函数本身不起作用(不会执行任何更新),所以在我看来这就是答案。 –
@kor_我试图将'sql.ExecuteNonQuery()'插入'Public Shared Sub ubahdata',但是** invalidOperationException未处理**错误出现。 –