public void FillData(List <LicenceInfo> licenceList)
        {
            this.listView1.Items.Clear();

            if (licenceList != null)
            {
                for (int i = 0; i < licenceList.Count; i++)
                {
                    LicenceInfo licence = licenceList[i];

                    ListViewItem item = new ListViewItem();

                    item.SubItems.Add(licence.id.ToString());
                    item.SubItems.Add(licence.key);
                    item.SubItems.Add(licence.imei);
                    item.SubItems.Add(licence.status.ToString());
                    item.SubItems.Add(licence.founder);

                    item.SubItems.Add(licence.createTime);

                    item.Tag = licence;

                    this.listView1.Items.Add(item);
                }

                this.lblCount.Text = "当前总共" + licenceList.Count + "条记录";
            }
            else
            {
                this.lblCount.Text = "";
            }
        }
        private void listView1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (this.listView1.SelectedItems.Count > 0)
            {
                ListViewItem item = this.listView1.SelectedItems[0];

                if (item.Tag != null && item.Tag is LicenceInfo)
                {
                    this.current_Licence = item.Tag as LicenceInfo;

                    if (this.current_Licence.imei == "")
                    {
                        this.btnRegister.Enabled = true;
                        this.btnUpdate.Enabled   = false;
                        this.btnLogout.Enabled   = false;
                    }
                    else
                    {
                        this.btnRegister.Enabled = false;
                        this.btnUpdate.Enabled   = true;
                        this.btnLogout.Enabled   = true;
                    }
                    this.btnDelete.Enabled = true;
                }
                else
                {
                    this.current_Licence = null;

                    this.btnUpdate.Enabled   = false;
                    this.btnRegister.Enabled = false;
                    this.btnLogout.Enabled   = false;
                    this.btnDelete.Enabled   = false;
                }
            }
            else
            {
                this.current_Licence = null;

                this.btnUpdate.Enabled   = false;
                this.btnRegister.Enabled = false;
                this.btnLogout.Enabled   = false;
                this.btnDelete.Enabled   = false;
            }
        }