protected void btnLogin_Click(object sender, EventArgs e)
{
//connect
using (DefaultConnection db = new DefaultConnection())
{
//create user object
User objU = new User();
//get salt value for this username
String Username = txtUsername.Text;
objU = (from u in db.Users where u.Username == Username select u).FirstOrDefault();
//find match for username
if (objU != null)
{
String salt = objU.Salt;
//salt and hash plain text pw
String password = txtPassword.Text;
String pass_and_salt = password + salt;
// Create a new instance of the hash crypto service provider.
HashAlgorithm hashAlg = new SHA256CryptoServiceProvider();
// Convert the data to hash to an array of Bytes.
byte[] bytValue = System.Text.Encoding.UTF8.GetBytes(pass_and_salt);
// Compute the Hash. This returns an array of Bytes.
byte[] bytHash = hashAlg.ComputeHash(bytValue);
// Optionally, represent the hash value as a base64-encoded string,
// For example, if you need to display the value or transmit it over a network.
string base64 = Convert.ToBase64String(bytHash);
//check if the passwords match
if (objU.Password == base64)
{
//store identity in session obj
Session["UserID"] = objU.UserID;
Session["Name"] = objU.Name;
//redirect to standings page
Response.Redirect("standings.aspx");
}
else
{
lblError.Text = "Invalid Login";
}
}
else
{
lblError.Text = "Invalid Login";
}
}
}
protected void GetTeams()
{
//connect and get list of teams
using (DefaultConnection db = new DefaultConnection())
{
var teams = from t in db.Teams
select t;
//binding the teams query to the grid
grdTeams.DataSource = teams.ToList();
grdTeams.DataBind();
}
}
protected void grdTeams_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
//look for the id to be deleted
Int32 TeamID = Convert.ToInt32(grdTeams.DataKeys[e.RowIndex].Values["TeamID"]);
//connect to db
using (DefaultConnection db = new DefaultConnection())
{
Team team = (from t in db.Teams
where t.TeamID == TeamID
select t).FirstOrDefault();
//delete record
db.Teams.Remove(team);
db.SaveChanges();
GetTeams();
}
}
protected void grdTeams_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
//look for the id to be deleted
Int32 TeamID = Convert.ToInt32(grdTeams.DataKeys[e.RowIndex].Values["TeamID"]);
//connect to db
using (DefaultConnection db = new DefaultConnection())
{
Team team = (from t in db.Teams
where t.TeamID == TeamID
select t).FirstOrDefault();
//delete record
db.Teams.Remove(team);
db.SaveChanges();
GetTeams();
}
}
protected void GetTeam()
{
//look up selected team and fill data in the form
using (DefaultConnection db = new DefaultConnection())
{
Int32 TeamID = Convert.ToInt32(Request.QueryString["TeamID"]);
//look up team
Team team = (from t in db.Teams where t.TeamID == TeamID select t).FirstOrDefault();
//fill data to form
txtTeam.Text = team.TeamName;
txtWins.Text = team.Wins.ToString();
txtLosses.Text = team.Losses.ToString();
txtRunsScored.Text = team.RunsScored.ToString();
txtRunsAgainst.Text = team.RunsAgainst.ToString();
txtExpectedWinPercentage.Text = team.ExpectedWinningPercentage.ToString();
txtRelativePowerIndex.Text = team.RelativePowerIndex.ToString();
}
}
protected void GetTeam()
{
//look up selected team and fill data in the form
using (DefaultConnection db = new DefaultConnection())
{
Int32 TeamID = Convert.ToInt32(Request.QueryString["TeamID"]);
//look up team
Team team = (from t in db.Teams where t.TeamID == TeamID select t).FirstOrDefault();
//fill data to form
txtTeam.Text = team.TeamName;
txtWins.Text = team.Wins.ToString();
txtLosses.Text = team.Losses.ToString();
txtRunsScored.Text = team.RunsScored.ToString();
txtRunsAgainst.Text = team.RunsAgainst.ToString();
txtExpectedWinPercentage.Text = team.ExpectedWinningPercentage.ToString();
txtRelativePowerIndex.Text = team.RelativePowerIndex.ToString();
}
}
protected void btnSave_Click(object sender, EventArgs e)
{
using (DefaultConnection db = new DefaultConnection())
{
//create new team
Team team = new Team();
//check for url
if(!String.IsNullOrEmpty(Request.QueryString["TeamID"]))
{
Int32 TeamID = Convert.ToInt32(Request.QueryString["TeamID"]);
//look up team
team = (from t in db.Teams where t.TeamID == TeamID select t).FirstOrDefault();
}
//fill properties of new team
team.TeamName = txtTeam.Text;
team.Wins = Convert.ToInt32(txtWins.Text);
team.Losses = Convert.ToInt32(txtLosses.Text);
team.RunsScored = Convert.ToInt32(txtRunsScored.Text);
team.RunsAgainst = Convert.ToInt32(txtRunsAgainst.Text);
team.ExpectedWinningPercentage = Convert.ToDecimal(txtExpectedWinPercentage.Text);
team.RelativePowerIndex = Convert.ToDecimal(txtRelativePowerIndex.Text);
//add if we have no url id
if (String.IsNullOrEmpty(Request.QueryString["TeamID"]))
{
db.Teams.Add(team);
}
//save the new team
db.SaveChanges();
//redirect
Response.Redirect("standings.aspx");
}
}
protected void btnRegister_Click(object sender, EventArgs e)
{
//connect
using (DefaultConnection db = new DefaultConnection())
{
//create a new user
User objU = new User();
//fill properties
objU.Name = txtName.Text;
objU.Username = txtUsername.Text;
//salt and hash plain text pw
String password = txtPassword.Text;
String salt = CreateSalt(8);
String pass_and_salt = password + salt;
// Create a new instance of the hash crypto service provider.
HashAlgorithm hashAlg = new SHA256CryptoServiceProvider();
// Convert the data to hash to an array of Bytes.
byte[] bytValue = System.Text.Encoding.UTF8.GetBytes(pass_and_salt);
// Compute the Hash. This returns an array of Bytes.
byte[] bytHash = hashAlg.ComputeHash(bytValue);
// Optionally, represent the hash value as a base64-encoded string,
// For example, if you need to display the value or transmit it over a network.
string base64 = Convert.ToBase64String(bytHash);
objU.Password = base64;
objU.Salt = salt;
//save
db.Users.Add(objU);
db.SaveChanges();
}
}
protected void btnRegister_Click(object sender, EventArgs e)
{
//connect
using (DefaultConnection db = new DefaultConnection())
{
//create a new user
User objU = new User();
//fill properties
objU.Name = txtName.Text;
objU.Username = txtUsername.Text;
//salt and hash plain text pw
String password = txtPassword.Text;
String salt = CreateSalt(8);
String pass_and_salt = password + salt;
// Create a new instance of the hash crypto service provider.
HashAlgorithm hashAlg = new SHA256CryptoServiceProvider();
// Convert the data to hash to an array of Bytes.
byte[] bytValue = System.Text.Encoding.UTF8.GetBytes(pass_and_salt);
// Compute the Hash. This returns an array of Bytes.
byte[] bytHash = hashAlg.ComputeHash(bytValue);
// Optionally, represent the hash value as a base64-encoded string,
// For example, if you need to display the value or transmit it over a network.
string base64 = Convert.ToBase64String(bytHash);
objU.Password = base64;
objU.Salt = salt;
//save
db.Users.Add(objU);
db.SaveChanges();
}
}
protected void btnSave_Click(object sender, EventArgs e)
{
using (DefaultConnection db = new DefaultConnection())
{
//create new team
Team team = new Team();
//check for url
if (!String.IsNullOrEmpty(Request.QueryString["TeamID"]))
{
Int32 TeamID = Convert.ToInt32(Request.QueryString["TeamID"]);
//look up team
team = (from t in db.Teams where t.TeamID == TeamID select t).FirstOrDefault();
}
//fill properties of new team
team.TeamName = txtTeam.Text;
team.Wins = Convert.ToInt32(txtWins.Text);
team.Losses = Convert.ToInt32(txtLosses.Text);
team.RunsScored = Convert.ToInt32(txtRunsScored.Text);
team.RunsAgainst = Convert.ToInt32(txtRunsAgainst.Text);
team.ExpectedWinningPercentage = Convert.ToDecimal(txtExpectedWinPercentage.Text);
team.RelativePowerIndex = Convert.ToDecimal(txtRelativePowerIndex.Text);
//add if we have no url id
if (String.IsNullOrEmpty(Request.QueryString["TeamID"]))
{
db.Teams.Add(team);
}
//save the new team
db.SaveChanges();
//redirect
Response.Redirect("standings.aspx");
}
}
