HRApp.HRCompanyClass不可访问，因为它受级别限制怎么解决？

[gmfkgjokmflkgh]

HRApp.HRCompanyClass不可访问，因为它受级别限制怎么解决？

using System;
using System.Collections.Generic;
using System.ComponentModel;

using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace HRUI
{
public partial class frmCompanyInfo : Form
{
HRApp.HRCompanyClass objCompanyData = new HRApp.HRCompanyClass();
int companyID;

public frmCompanyInfo()
{
InitializeComponent();
}

private void frmCompanyInfo_Load(object sender, EventArgs e)
{
DataTable dt = new DataTable();
dt = objCompanyData.getCompanyInfo();
txtName.Text = dt.Rows[0][1].ToString();
txtController.Text = dt.Rows[0][2].ToString();
txtData.Text = dt.Rows[0][3].ToString();
txtPhone.Text = dt.Rows[0][4].ToString();
txtEmail.Text = dt.Rows[0][5].ToString();
txtAddress.Text = dt.Rows[0][6].ToString();
txtSummary.Text = dt.Rows[0][7].ToString();
companyID = int.Parse(dt.Rows[0][0].ToString());
}

private void btnOK_Click(object sender, EventArgs e)
{
string name = txtName.Text.Trim();
string controller = txtController.Text.Trim();
DataTime date = dtpDate.Value;
string phone = txtPhone.Text.Trim();
string email = txtEmail.Text.Trim();
string address = txtAddress.Text.Trim();
string summary = txtSummary.Text.Trim();
if (objCompanyData.saveCompanyEdit(name, controller,
date, phone, email, address, summary, companyID))
{
MessageBox.Show("更新数据成功！", "提示信息");
}
else
{
MessageBox.Show("更新数据失败！", "提示信息");
}
}
}
}

[bwangel]

如果是第三方库的话，用反射可以强制访问protected或private方法