如何在C#中使用zKemKeeper连接考勤机？

我正在使用asp.net c#开发考勤软件，当我尝试使用asp.net c#连接生物识别设备（考勤打孔机）时，显示错误

错误： “试图读取或写入受保护的内存。这通常表示其他内存已损坏。”

我的代码：

//internal Axzkemkeeper.AxCZKEM AxCZKEM1;
    //public Axzkemkeeper.AxCZKEM axCZKEM1 = new Axzkemkeeper.AxCZKEM();
    //public zkemkeeper.CZKEM axCZKEM1 = new zkemkeeper.CZKEM();
    //public delegate int DecompressMCX(int hComp,IntPtr in, uint in_len, IntPtr out, ref uint out_len, bool eod);

    public zkemkeeper.CZKEM axCZKEM1 = new zkemkeeper.CZKEM();

private void Essl_Connect(string IpAddress, int MachineNo)
    {
        try
        {
            bConn = axCZKEM1.Connect_Net(IpAddress.Trim(), 8080);
            //bConn = axCZKEM1.Connect_Net(IpAddress.Trim(), 4370);
            if (bConn == true)
            {
                ScriptManager.RegisterStartupScript(this, GetType(), "Message", "alert('Connected')", true);
            }
            else
            {
                ScriptManager.RegisterStartupScript(this, GetType(), "Message", "alert('Not Connected')", true);
            }
        }
        catch (Exception ex)
        {
            ScriptManager.RegisterStartupScript(this, GetType(), "Error Message", "alert('" + ex.Message.ToString() + "')", true);
        }
    }

如果有人纠正此问题，是否有其他方法连接机器

如果我使用

public zkemceper.CZKEMClass axCZKEM1=new zkemceper.CZKEMClass（）

它显示以下错误：

“无法嵌入互操作类型'zkemceeper.CZKEMClass'。请改用适用的接口。”

使用C#.NET将生物识别考勤机与.NET连接。 现在在connect按钮的click事件上编写下面的代码

首先声明连接对象：

public zkemkeeper.CZKEM axCZKEM1 = new zkemkeeper.CZKEM();
private void btnconnect_Click(object sender, EventArgs e)
{
    try
    {
        bool bIsConnected = axCZKEM1.Connect_Net(ip_address_of_your_machine, 4370);   // 4370 is port no of attendance machine
        if (bIsConnected == true)
        {
            MessageBox.Show("Device Connected Successfully");
        }
        else
        {
            MessageBox.Show("Device Not Connect");
        }
    }

    Catch( (Exception ex)
    {
        MessageBox.Show(ex.Message.ToString());
    }
}

使用C#.NET从数据库中的生物特征考勤机下载考勤日志

在“下载考勤”按钮的“单击”事件中写入以下代码：

private bool IsRead = false;
string dwEnrollNumber;
int dwVerifyMode, dwInOutMode, dwYear, dwMonth, dwDay, dwHour, dwMinute, dwSecond,           dwWorkcode, dwMachineNumber;
public zkemkeeper.CZKEM axCZKEM1 = new zkemkeeper.CZKEM();

public class ClsMachineBL
{
    public String DownloadDataFromBiomatrix(ClsMachineML prp)
    {
        try
        {
            string constr = CommonConnection.ConStr;
            con = new SqlConnection(constr);
            con.Open();
            cmd = new SqlCommand("Prc_InsertDatafromBiomatrix", con);
            cmd.CommandType = CommandType.StoredProcedure;
            SqlDataAdapter da = new SqlDataAdapter(cmd);
            cmd.Parameters.AddWithValue("@dwMachineNumber", prp.dwMachineNumber);
            cmd.Parameters.AddWithValue("@dwEnrollNumber", prp.dwEnrollNumber);
            cmd.Parameters.AddWithValue("@dwVerifyMode", prp.dwVerifyMode);
            cmd.Parameters.AddWithValue("@dwInOutMode", prp.dwInOutMode);
            cmd.Parameters.AddWithValue("@dwYear", prp.dwYear);
            cmd.Parameters.AddWithValue("@dwMonth", prp.dwMonth);
            cmd.Parameters.AddWithValue("@dwDay", prp.dwDay);
            cmd.Parameters.AddWithValue("@dwHour", prp.dwHour);
            cmd.Parameters.AddWithValue("@dwMinute", prp.dwMinute);
            cmd.Parameters.AddWithValue("@dwSecond", prp.dwSecond);
            cmd.Parameters.AddWithValue("@dwWorkcode", prp.dwWorkcode);
            cmd.ExecuteNonQuery();
        }
        catch (Exception ex)
        {
            BL.clsCommon objerr = new BL.clsCommon();
            objerr.InesrtError("Error IS " + ex.Message + "_" + ex.StackTrace);
        }
        finally
        {
            cmd.Dispose();
            con.Close();
            con.Dispose();
        }
        return result;
    }
}

public class ClsMachineML
{
    public string Id { get; set; }
    public string MachineNo { get; set; }
    public string MachineIP { get; set; }
    public string PortNo { get; set; }
    public string Remark { get; set; }
    public string Tuser { get; set; }
    public string Tdate { get; set; }
    public string Status { get; set; }
    public int  dwMachineNumber { get; set; }
    public string dwEnrollNumber { get; set; }
    public int dwVerifyMode { get; set; }
    public int dwInOutMode { get; set; }
    public int dwYear { get; set; }
    public int dwMonth { get; set; }
    public int dwDay { get; set; }
    public int dwHour { get; set; }
    public int dwMinute { get; set; }
    public int dwSecond { get; set; }
    public int dwWorkcode { get; set; }
    public string User_Id { get; set; }
    public string Name { get; set; }
    public int Finger_Index { get; set; }
    public string Finger_Image { get; set; }
    public int Privilege { get; set; }
    public string Passwords { get; set; }
    public bool Enabled { get; set; }
    public int Flag { get; set; }
    public string  Fromdate { get; set; }
    public string Todate { get; set; }
}

private void btndownload_Click(object sender, EventArgs e)
{
     ClsMachineBL obj = new ClsMachineBL();
     ClsMachineML prp = new ClsMachineML();

    try
    {
        if (cbmachine.Text == "" || cbmachine.Text == "Select")
        {
            MessageBox.Show("Please Select Machine");
            cbmachine.Focus();
            return;
        }

        progressBar1.Visible = true;
          bool bIsConnected = axCZKEM1.Connect_Net(ip_address_of_your_machine, 4370);   // 4370 is port no of attendance machine
        if (bIsConnected == true)
        {
            IsRead = axCZKEM1.ReadGeneralLogData(dwMachineNumber);
            if (IsRead == true)
            {
                progressBar1.Maximum = 100;
                progressBar1.Step = 1;
                progressBar1.Value = 0;
                while (axCZKEM1.SSR_GetGeneralLogData(dwMachineNumber, out dwEnrollNumber, out dwVerifyMode, out dwInOutMode, out dwYear, out                                dwMonth, out dwDay, out dwHour, out dwMinute, out dwSecond, ref dwWorkcode))
                {
                    prp.dwDay = dwDay;
                    prp.dwEnrollNumber = dwEnrollNumber;
                    prp.dwHour = dwHour;
                    prp.dwInOutMode = dwInOutMode;
                    prp.dwMachineNumber = dwMachineNumber;
                    prp.dwMinute = dwMinute;
                    prp.dwMonth = dwMonth;
                    prp.dwSecond = dwSecond;
                    prp.dwVerifyMode = dwVerifyMode;
                    prp.dwWorkcode = dwWorkcode;
                    prp.dwYear = dwYear;
                    string add = obj.DownloadDataFromBiomatrix(prp);
                    progressBar1.PerformStep();
                }

                string export = obj.ExportToAttendance(prp);
                MessageBox.Show("Attendance Downloaded Successfully");
                progressBar1.Visible = false;
            }
            else
            {
                MessageBox.Show("No Log Found....");
                progressBar1.Visible = false;
            }
        }
        else
        {
            MessageBox.Show("Device Not Connected");
        }
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message.ToString());
    }
}

使用C#.NET从数据库中的生物特征考勤机中删除考勤日志

确保regstr正确的dll文件x64/x32

将此代码添加到创建类的代码的顶部

[SecurityPermission（SecurityAction.Assert，Unrestricted=true）]

---

将dll interop.zkemkeeper的（属性）更改为False，嵌入类型为False。

我认为您的第一个代码段中的

Catch（（异常示例）

在语法上是不正确的。这对我来说是正确的答案。它起到了很好的作用

public zkemkeeper.CZKEM axCZKEM1 = new zkemkeeper.CZKEM();
private void btndownload_Click(object sender, EventArgs e)
{
    bool bIsConnected = axCZKEM1.Connect_Net(ip_address_of_your_machine, 4370);   // 4370 is port no of attendance machine
    if (bIsConnected == true)
    {
        bool delete = axCZKEM1.ClearGLog(dwMachineNumber);
        if (delete == true)
        {
            MessageBox.Show("Deleted.....");
        }
        if (delete == false)
        {
            MessageBox.Show("No Log Found To Delete.....");
        }
    }
}