c# - 将VB代码转换为C#

Question

即时通讯使用mobitek gsm调制解调器，其使用的源代码在VB中。现在我想将代码转换为C＃。我遇到麻烦的代码是intModemStatus = SMS.ModemInit(frmModem.txtPort.Text, "")。之后，代码将通过选择大小写进行如下操作：

intModemStatus = SMS.ModemInit(frmModem.txtPort.Text, "")

    Select Case intModemStatus

        Case 0
            FrmModem.txtText.Text = "GSM Modem Not Connected!"
            '[VB - Module1] frmModem.txtText = "GSM Modem Not Connected!"
            Exit Sub

        Case 1
            FrmModem.txtText.Text = "CONNECTED!"
            '[VB - Module1] frmModem.txtText = "GSM Modem Connected!"
            Exit Sub

        Case 2
            FrmModem.txtText.Text = "PIN Required!"
            '[VB - Module1] frmModem.txtText = "PIN Required!"
            Exit Sub

        Case 3
            FrmModem.txtText.Text = "Incorrect PIN Entered! Warning after 3 tries of incorrect PIN entered, your SIM card will be blocked by TELCO!"
            '[VB - Module1] frmModem.txtText = "Incorrect PIN entered! Warning: after 3 tries of incorrect PIN entered, your SIM card will be blocked by TELCO!"
            Exit Sub

        Case 4
            FrmModem.txtText.Text = "Your SIM card is blocked by TELCO!"
            '[VB - Module1] frmModem.txtText = "Your SIM card is blocked by TELCO!"
            Exit Sub

        Case 5
            FrmModem.txtText.Text = "Your SIM card has problem!"
            '[VB - Module1] frmModem.txtText = "Your SIM card has problem!"
            Exit Sub

        Case Else
            FrmModem.txtText.Text = "GSM Modem Not Connected!"
            '[VB - Module1] frmModem.txtText = "GSM Modem Not Connected!"
            Exit Sub

    End Select

我已经将所有内容都转换为c＃包含开关情况，如下所示：

int ModemStatus = sms.ModemInit(txtPort.Text, "");
        switch (intModemStatus)
        {
            case 0:

                txtText.Text = "GSM Modem Not Connected!";
                //[VB - Module1] frmModem.txtText = "GSM Modem Not Connected!"
                return;

                break;
            case 1:
                txtText.Text = "CONNECTED!";
                //[VB - Module1] frmModem.txtText = "GSM Modem Connected!"
                return;


                break;
            case 2:
                txtText.Text = "PIN Required!";
                //[VB - Module1] frmModem.txtText = "PIN Required!"
                return;


                break;
            case 3:
                txtText.Text = "Incorrect PIN Entered! Warning after 3 tries of incorrect PIN entered, your SIM card will be blocked by TELCO!";
                //[VB - Module1] frmModem.txtText = "Incorrect PIN entered! Warning: after 3 tries of incorrect PIN entered, your SIM card will be blocked by TELCO!"
                return;


                break;
            case 4:
                txtText.Text = "Your SIM card is blocked by TELCO!";
                //[VB - Module1] frmModem.txtText = "Your SIM card is blocked by TELCO!"
                return;


                break;
            case 5:
                txtText.Text = "Your SIM card has problem!";
                //[VB - Module1] frmModem.txtText = "Your SIM card has problem!"
                return;


                break;
            default:
                txtText.Text = "GSM Modem Not Connected!";
                //[VB - Module1] frmModem.txtText = "GSM Modem Not Connected!"
                return;


                break;
        }

但是，我在使用此代码 int ModemStatus = sms.ModemInit(txtPort.Text, "");时遇到麻烦。它说


  参数1无法将字符串转换为short。
  最好的重载方法匹配为mobitekSMSAPI5.ModemInit（short，string）有一些无效的参数。


然后我尝试更改 int ModemStatus = sms.ModemInit(txtPort.Text, "");，但它说的相同。

要使用mobitek gsm调制解调器，我需要添加MobitekSMSAPI5的引用，但是我做到了。开关代码将确定调制解调器是否已连接。

我真的希望有人加紧解决这个问题。我卡在中间，我不知道从哪里开始。任何帮助都值得赞赏。谢谢。

这是我的错误：
当我使用此代码时，它会显示：

 short port;
if (!short.TryParse(txtPort.Text, out port))
{
    throw new Exception("Failed to parse port");
    // or any other handling - depends on your needs
}

int ModemStatus = sms.ModemInit(port, "");

现在，当我更改如下代码时，它似乎出现了不同的错误。

Answer 1

您的问题只是几个强制性问题。第一个与端口号有关，ModemInit方法期望一个short值，但是您传递一个string，因此您已经使用short.TryParse修复了该问题。

另一个问题是您的返回类型，ModemInit方法似乎返回它自己的自定义enum值，如果您感兴趣的只是整数值，则只需将其转换为int。

int ModemStatus = (int)sms.ModemInit(port, "");