CNSA-216-Personal/CH78/Display.aspx.cs

using System;
using System.Web.UI;
using System.Data;
using System.Drawing;
using System.Security.Principal;

namespace CH78
{
    public partial class Display : Page
    {
        protected string pageType;
        protected void Page_Load(object sender, EventArgs e)
        {
            string studentID = "";
            string gender;

            string id = StudentDataTier.DecryptQueryString(Request.QueryString["ID"], "CNSAcnsa1", "salty");

            if (!IsPostBack)
            {
                pageType = Request.QueryString["type"].Trim().ToUpper();
                
                // retrieve the querystring
                if (String.IsNullOrEmpty(id))
                {
                    // not the right entry point
                    Response.Redirect("Home.aspx");
                }

                else if (id.ToUpper() == "NEW")
                {
                   BindDDL();
                }

                else if (Request.QueryString["type"].Trim().ToUpper() == "VIEW") // display
                {
                    GetStudent(id, Request.QueryString["type"].Trim().ToUpper());
                }

                else if (Request.QueryString["type"].Trim().ToUpper() == "EDIT") // edit
                {
                    GetStudent(id, Request.QueryString["type"].Trim().ToUpper());
                }

                else // anything else
                {
                    Response.Redirect("Home.aspx");
                }
            }
        }

        public void GetStudent(string studentid, string type)
        {
            // the right record

            DataSet ds = new DataSet();
            string gender;
            ds = StudentDataTier.SearchStudents("","",studentid);
            if (ds.Tables[0].Rows.Count > 0)
            {
                txtStuID.Text = ds.Tables[0].Rows[0]["student_id"].ToString();
                txtFNAME.Text = ds.Tables[0].Rows[0]["fname"].ToString();
                txtLNAME.Text = ds.Tables[0].Rows[0]["lname"].ToString();
                txtMidInit.Text = ds.Tables[0].Rows[0]["midinit"].ToString();
                txtDOB.Text = ds.Tables[0].Rows[0]["DOB"].ToString();
                txtActBal.Text = ds.Tables[0].Rows[0]["ACCT_BAL"].ToString();
                txtMajor.Text = ds.Tables[0].Rows[0]["MAJOR"].ToString();
                txtCellPhone.Text = ds.Tables[0].Rows[0]["CELL_PHONE"].ToString();
                txtAdr1.Text = ds.Tables[0].Rows[0]["ADDRESS_ONE"].ToString();
                txtCity.Text = ds.Tables[0].Rows[0]["CITY"].ToString();
                txtZip.Text = ds.Tables[0].Rows[0]["ZIP"].ToString();
                txtCreds.Text = ds.Tables[0].Rows[0]["TOTALCREDITS"].ToString();
                // TODO complete other fields

                gender = ds.Tables[0].Rows[0]["GENDER"].ToString().Trim();
                // if (gender.ToUpper() == "F")
                // {
                //     txtGender.SelectedItem.Text = "FEMALE";
                // }
                // else
                // {
                //     txtGender.SelectedItem.Text = "MALE";
                // }

                txtGender.Enabled = false;
                //mysalary = Decimal.Parse(ds.Tables[0].Rows[0]["salary"])
                //txtSalary.Text = mysalary.ToString("C")
                //txtSalary.Enabled = False

                BindDDL();

                // txtState.SelectedValue = ds.Tables[0].Rows[0]["state"].ToString();
                if (type.ToUpper() == "VIEW")
                {
                    txtStuID.Enabled = false;
                    txtFNAME.Enabled = false;
                    txtLNAME.Enabled = false;
                    btnGoStu.Visible = false;
                    btnCancelStu.Visible = false;
                }
                else if (type.ToUpper() == "EDIT")
                {
                    txtGender.Enabled = true;
                    txtStuID.Enabled = false;
                    btnGoStu.Visible = true;
                    btnCancelStu.Visible = true;
                    btnGoStu.Text = "UPDATE";
                    btnCancelStu.Text = "REFRESH";
                    btnGoStu.ForeColor = Color.Red;
                    btnCancelStu.ForeColor = Color.Blue;
                }
                else if (type.ToUpper() == "NEW")
                {
                    txtGender.Enabled = true;
                    txtStuID.Enabled = false;
                    btnGoStu.Visible = true;
                    btnCancelStu.Visible = true;
                    btnGoStu.Text = "UPDATE";
                    btnCancelStu.Text = "REFRESH";
                    btnGoStu.ForeColor = Color.Red;
                    btnCancelStu.ForeColor = Color.Blue;
                }
            }
        }

        protected void BindDDL()
        {
            txtState.DataSource = StudentDataTier.GetStates();
            txtState.DataTextField = "Name";
            txtState.DataValueField = "StateID";
            txtState.SelectedValue = "1";
            txtState.DataBind();

            txtGender.DataSource = StudentDataTier.GetGenders();
            txtGender.DataTextField = "CommonName";
            txtGender.DataValueField = "Gender_ID";
            txtGender.SelectedValue = "0";
            txtGender.DataBind();
        }
        
        protected void btnCancelStu_OnClick(object sender, EventArgs e)
        {
            System.Text.StringBuilder cb = new System.Text.StringBuilder();
                        cb.Append(" opener.location.href = 'home.aspx';");
                        cb.Append("var ie7 = (document.all && !window.opera && window.XMLHttpRequest) ? true : false;");
                        cb.Append(" if (ie7)");
                        cb.Append(" { ");
                        cb.Append("window.open('','_parent','');");
                        cb.Append("window.close();");
                        cb.Append(" }");
                        cb.Append(" else ");
                        cb.Append(" { ");
                        cb.Append(" this.focus();");
                        cb.Append(" self.opener = this;");
                        cb.Append(" self.close();");
                        cb.Append(" }");
                        ClientScript.RegisterClientScriptBlock(this.GetType(), "CloseReloadScript", cb.ToString(), true);
        }

        protected void btnGoStu_OnClick(object sender, EventArgs e)
        {
            
            if (Request.QueryString["type"].Trim().ToUpper() == "VIEW")
            {
            }
            else if (Request.QueryString["type"].Trim().ToUpper() == "EDIT")
            {
                Decimal acct_bal = 0;

                try
                {
                    acct_bal = decimal.Parse(txtActBal.Text);
                }
                catch (Exception exception)
                {
                }

                Decimal creds = 0;

                try
                {
                    creds = decimal.Parse(txtCreds.Text);
                }
                catch (Exception exception)
                {
                }

                DateTime date = new DateTime(3000, 1, 1);
                try
                {
                    date = DateTime.Parse(txtDOB.Text);
                }
                catch (Exception exception)
                {
                }

                StudentDataTier.UpdateStudents(0,
                    txtStuID.Text,
                    txtFNAME.Text,
                    txtLNAME.Text,
                    txtMidInit.Text,
                    date,
                    txtGender.Text,
                    acct_bal,
                txtMajor.Text, txtCellPhone.Text,
                txtAdr1.Text, 
                txtCity.Text, 
                txtState.ToString(),
                txtZip.Text, 
                creds);
            }
            else if (Request.QueryString["type"].Trim().ToUpper() == "NEW")
            { 
                Decimal acct_bal = 0;

                try
                {
                    acct_bal = decimal.Parse(txtActBal.Text);
                }
                catch (Exception exception)
                {
                }

                Decimal creds = 0;

                try
                {
                    creds = decimal.Parse(txtCreds.Text);
                }
                catch (Exception exception)
                {
                }

                DateTime date = new DateTime(3000, 1, 1);
                try
                {
                    date = DateTime.Parse(txtDOB.Text);
                }
                catch (Exception exception)
                {
                }
                
                
                StudentDataTier.UpdateStudents(1, 
                txtStuID.Text, 
                txtFNAME.Text, 
                txtLNAME.Text,
                txtMidInit.Text,
                date, 
                txtGender.Text.ToString(),
                acct_bal,
                txtMajor.Text, txtCellPhone.Text,
                txtAdr1.Text, 
                txtCity.Text, 
                txtState.Text.ToString(),
                txtZip.Text, 
                creds);
            }
            

            
        }
        
    }
}