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在这里有点挣扎。尝试开发代码以将用户输入链接到我的数据库中，以书本记录的形式。例如，会要求用户输入他们的姓名地址等。但我使用的代码似乎没有执行，因为我不断收到相同的错误。

Line 12:         Dim con As New SqlConnection
Line 13:         Dim inscmd As New SqlCommand
Line 14:         con.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings("Database.My.MySettings.Database1ConnectionString1").ConnectionString
Line 15:         con.Open()
Line 16:         inscmd.CommandText = ("insert into booking values('" + txtfirstname.Text + "', " + txtSurname.Text + "', " + txtAddressline1.Text + "', " + txtAddressline2.Text + "', " + txtPostcode.Text + "', " + txtTime.Text + "', " + txtPeople.Text + "', " + txtDropoff1.Text + "', " + txtDropoff2.Text + "', " + txtDropoffpost.Text + "")

第 14 行包含错误，但我不知道为什么。这是我的代码；

Protected Sub btnsubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles  btnsubmit.Click
    Dim con As New SqlConnection
    Dim inscmd As New SqlCommand
    con.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings("Database.My.MySettings.Database1ConnectionString1").ConnectionString
    con.Open()
    inscmd.CommandText = ("insert into booking values('" + txtfirstname.Text + "', " + txtSurname.Text + "', " + txtAddressline1.Text + "', " + txtAddressline2.Text + "', " + txtPostcode.Text + "', " + txtTime.Text + "', " + txtPeople.Text + "', " + txtDropoff1.Text + "', " + txtDropoff2.Text + "', " + txtDropoffpost.Text + "")
    Print(inscmd.CommandText)
    inscmd.Connection = con
    inscmd.ExecuteNonQuery()
    con.Close()
    inscmd.Parameters.Clear()

    MsgBox("Your booking has been successfully")
    con.Close()

End Sub
4

4 回答 4

1

希望这会对您有所帮助（在需要的地方插入您的代码）

        Dim con As New SqlConnection
        Dim myConString As String = getSQLString() ' GET YOUR CON String

' 我的函数在返回时看起来像这样

“服务器=ServerExactLocationPath；数据库=DataBase；用户ID=用户名；密码=密码；”

        Dim objcommand As SqlCommand = New SqlCommand
        'con.ConnectionString = myConString

        With objcommand
            .Connection = con
            Dim cmdText As String = ""
            cmdText = "Insert into SitesStatus (SiteNumber,StatusName,Date,ByUser) values ('" & site & "','" & status & "','" & System.DateTime.Today.ToString("MM/dd/yyyy") & "','" & dbUiInitials & "')"
        'PUT YOUR INSERT ABOVE

         .CommandText = cmdText
        End With
        con.ConnectionString = myConString
        con.Open()
        objcommand.ExecuteNonQuery()
        con.Close()

    Catch ex As Exception
      End Try
 Return Nothing
于 2013-04-29T20:42:37.010 回答
0 
insert into booking values('" + txtfirstname.Text + "', " + txtSurname.Text + "', " + txtAddressline1.Text + "', " + txtAddressline2.Text + "', " + txtPostcode.Text + "', " + txtTime.Text + "', " + txtPeople.Text + "', " + txtDropoff1.Text + "', " + txtDropoff2.Text + "', " + txtDropoffpost.Text + "

should be 

insert into booking values('" + txtfirstname.Text + "', '" + txtSurname.Text + "', '" + txtAddressline1.Text + "', '" + txtAddressline2.Text + "', '" + txtPostcode.Text + "', " + txtTime.Text + "', '" + txtPeople.Text + "', '" + txtDropoff1.Text + "', '" + txtDropoff2.Text + "', '" + txtDropoffpost.Text + "')"
于 2013-04-29T13:16:46.100 回答
0

您应该使用“项目设置”窗口中的连接字符串向导。然后尝试测试连接按钮，确保设置的类型是 ConnectionString 如果设置正确，您应该能够使用此语法获取连接字符串。

con.ConnectionString = my.Settings.Database1ConnectionString1
于 2013-04-29T13:53:39.640 回答
0 
strSQL = "INSERT INTO user_account_details" & _
                "(lastname,firstname,middlename,usertype,reg_date_time,status)" & _
                " VALUES ( " & _
                " '" & txtLName.Text & "', " & _
                " '" & txtFName.Text & "' , " & _
                " '" & txtMName.Text & "' , " & _
                " '" & cboUserType.Text & "' , " & _
                " '#" & Now & "#', " & _
                " 'Inactive' " & _
                ")"
于 2017-02-12T15:00:22.840 回答