Question

我有以下代码显示来自我的一个SQL表的数据并将其显示在datagridview中。

我现在正在尝试在ViewCustomerForm上放置一个保存按钮，以便将记录保存回我的SQL表。

以下是显示数据的代码。

Private Sub Button5_Click(sender As Object, e As EventArgs) Handles Button5.Click

    Using con As New SqlClient.SqlConnection("server=barry-laptop\SQLEXPRESS; database=BillingReferenceData; integrated security=yes")
        Dim cmd As SqlCommand = New SqlCommand("Select * FROM Customers", con)
        con.Open()
        Dim myDA As SqlDataAdapter = New SqlDataAdapter(cmd)
        Dim myDataSet As DataSet = New DataSet()
        myDA.Fill(myDataSet, "Customers")
        ViewCustomersForm.DataGridView1.DataSource = myDataSet.Tables("Customers")
        con.Close()

        ViewCustomersForm.Show()

    End Using

End Sub

有人可以帮我解决“保存”按钮的正确语法

非常感谢任何帮助。

Answer 1

这样的东西？

Private Sub button1_Click(sender As Object, e As EventArgs)
            For i As Integer = 0 To dataGridView1.Rows.Count - 1
                Dim strQuery As String = ("INSERT INTO tableName VALUES (" + dataGridView1.Rows(i).Cells("ColumnName").Value & ", ") + dataGridView1.Rows(i).Cells("ColumnName").Value & ");"

                Try
                    Using conn = New SqlConnection(ConnString)
                        Using comm = New SqlCommand(strQuery, conn)
                            conn.Open()
                            comm.ExecuteNonQuery()
                        End Using
                    End Using
                Catch generatedExceptionName As InvalidCastException
                End Try
            Next
        End Sub

请记住，您仍然需要使用datagridview等变量。

grtz

FOSA

用于将datagridview保存回数据库的按钮

1 个答案: