//查询用户
protected void Button1_Click(object sender, EventArgs e)
{
//输入异常检查
string strIn = TextBox1.Text.Trim();
//有点问题，数字挂字母？？
Regex r=new Regex(@"\d{1,100}");
if(r.IsMatch(strIn) & (strIn.Length<5|strIn.Length>6))
{
if (Session["lang"].ToString() == "zh-cn")
Response.Write("<script>alert('PSID的长度必须是5或者6！');window.location.href='./Query_employee.aspx'</script>");
else
Response.Write("<script>alert('The length of PSID must be 5 or 6！');window.location.href='./Query_employee.aspx'</script>");
return;
}
Query qr = new Query();
DataTable dt = new DataTable();
DataTable dtEmployeeExist = new DataTable();
//Query by PSID or Name
if (r.IsMatch(strIn))
{
dt = qr.QueryByPSID(strIn);
Session["PSID"] = strIn;
dtEmployeeExist = qr.GetEmployeeByPSID(strIn);
}
else
{
dt = qr.QueryByName(strIn);
Operation op = new Operation();
Session["PSID"] = op.NameToPSID(strIn);
dtEmployeeExist = qr.GetEmployeeByName(strIn);
}
//该employee不存在的处理
if (dtEmployeeExist.Rows.Count == 0)
{
if (Session["lang"].ToString() == "zh-cn")
Response.Write("<script>alert('" + TextBox1.Text.Trim() + " 不存在！');window.location.href='./Query_employee.aspx'</script>");
else
Response.Write("<script>alert('" + TextBox1.Text.Trim() + " does not exist！');window.location.href='./Query_employee.aspx'</script>");
return;
}
//有该employee，但借阅记录为空的处理
if (dt.Rows.Count == 0)
{
if (Session["lang"].ToString() == "zh-cn")
Response.Write("<script>alert('" + TextBox1.Text.Trim() + " 没有借阅任何图书！');window.location.href='./Query_employee.aspx'</script>");
else
Response.Write("<script>alert('" + TextBox1.Text.Trim() + " did not borrow any book！');window.location.href='./Query_employee.aspx'</script>");
return;
}
GridView1.DataSource = dt;
GridView1.DataBind();
}