//swipe card
private void txtStuCardNo_KeyDown(object sender, KeyEventArgs e)
{
Student objStu = objStuService.GetStudentByCardNo(this.txtStuCardNo.Text.Trim());
if (objStu == null)
{
MessageBox.Show("The card no is incorrect", "Warning");
this.lblInfo.Text = "Fail";
this.txtStuCardNo.SelectAll();
this.lblStuName.Text = "";
this.lblStuClass.Text = "";
this.lblStuId.Text = "";
this.pbStu.Image = null;
}
else
{
this.lblStuName.Text = objStu.StudentName;
this.lblStuId.Text = objStu.StudentId.ToString();
this.lblStuClass.Text = objStu.ClassName;
// image
if (objStu.StuImage != null && objStu.StuImage.Length != 0)
{
this.pbStu.Image = (Image) new SerializeObjectToString().DeserializeObject(objStu.StuImage);
}
else
{
this.pbStu.Image = Image.FromFile("default.png");
}
string result = objAttendanceService.AddCardNo(this.txtStuCardNo.Text.Trim());
if (result != "success")
{
this.lblInfo.Text = "Fail";
MessageBox.Show(result, "Warning");
}
else
{
this.lblInfo.Text = "Success";
ShowStat();
// save signed student to list
objStu.SignedTime = DateTime.Now;
signedStudent.Add(objStu);
this.dgvStudentList.DataSource = null;
this.dgvStudentList.DataSource = this.signedStudent;
// wait next student to swipe card
this.txtStuCardNo.Text = "";
this.txtStuCardNo.Focus();
}
}
}