public static Applicant GetApplication(string primaryKey)
{
//establish new connection by
//accessing connection string in LoansDB
SqlConnection c = LoansDB.GetConnection();
//Build SQL statement
string selectStatement = "SELECT CustID, CustFirstName, CustLastName, CustStreet, CustCity, CustState, CustZip "
+ "FROM LoanApplicant "
+ "WHERE CustID = @CustID ";
//Put statment and connection string in to SQLCommand obj
SqlCommand selectCommand = new SqlCommand(selectStatement, c);
//replaces parameter in statement with passed PK look-up value
selectCommand.Parameters.AddWithValue("@CustID", primaryKey);
try
{
//Open connection and instantiate SQL reader
//Describe query results as SingleRow
c.Open();
SqlDataReader applicationReader =
selectCommand.ExecuteReader(CommandBehavior.SingleRow);
//.Read() advances reader to the next record.
if (applicationReader.Read())
{
//instantiate new app obj and fill properties from DB
Applicant application = new Applicant();
application.CustID = applicationReader["CustID"].ToString();
application.FirstName = applicationReader["CustFirstName"].ToString();
application.LastName = applicationReader["CustLastName"].ToString();
application.Street = applicationReader["CustStreet"].ToString();
application.City = applicationReader["CustCity"].ToString();
application.State = applicationReader["CustState"].ToString();
application.Zip = Convert.ToInt32(applicationReader["CustZip"]);
return(application);
}
else
{
return(null);
}
}
catch (SqlException ex)
{
throw ex;
}
finally
{
c.Close();
}
}
public static bool UpdateApplicant(Applicant oldApplicant, Applicant newApplicant)
{
SqlConnection c = LoansDB.GetConnection();
string updateStatement = "UPDATE LoanApplicant SET " +
"CustFirstName = @NewFName, " +
"CustLastName = @NewLName, " +
"CustStreet = @NewStreet, " +
"CustCity = @NewCity, " +
"CustState = @NewState, " +
"CustZip = @NewZip " +
"WHERE CustID = @OldCustID";
SqlCommand updateCommand = new SqlCommand(updateStatement, c);
updateCommand.Parameters.AddWithValue(
"@NewFName", newApplicant.FirstName);
updateCommand.Parameters.AddWithValue(
"@NewLName", newApplicant.LastName);
updateCommand.Parameters.AddWithValue(
"@NewStreet", newApplicant.Street);
updateCommand.Parameters.AddWithValue(
"@NewCity", newApplicant.City);
updateCommand.Parameters.AddWithValue(
"@NewState", newApplicant.State);
updateCommand.Parameters.AddWithValue(
"@NewZip", newApplicant.Zip);
updateCommand.Parameters.AddWithValue(
"@OldCustID", oldApplicant.CustID);
try
{
c.Open();
int count = updateCommand.ExecuteNonQuery();
if (count > 0)
{
return(true);
}
else
{
return(false);
}
}
catch (SqlException ex)
{
throw ex;
}
finally
{
c.Close();
}
}
public static bool InsertNewJob(Job job)
{
{
SqlConnection c = LoansDB.GetConnection();
string insertStatement = "INSERT INTO JobHistory " +
"(JobID, CustID, JobTitle, StartDate, EndDate, Salary) " +
"VALUES (@NewJobID, @NewCustID, @NewJobTitle, @NewStartDate, @NewEndDate, @NewSalary);";
SqlCommand insertCommand = new SqlCommand(insertStatement, c);
insertCommand.Parameters.AddWithValue(
"@NewJobID", job.JobID);
insertCommand.Parameters.AddWithValue(
"@NewCustID", job.CustID);
insertCommand.Parameters.AddWithValue(
"@NewJobTitle", job.Job_Title);
insertCommand.Parameters.AddWithValue(
"@NewStartDate", job.Start_Date);
insertCommand.Parameters.AddWithValue(
"@NewEndDate", job.End_Date);
insertCommand.Parameters.AddWithValue(
"@NewSalary", job.Salary);
try
{
c.Open();
int count = insertCommand.ExecuteNonQuery();
if (count > 0)
{
return(true);
}
else
{
return(false);
}
}
catch (SqlException ex)
{
throw ex;
}
finally
{
c.Close();
}
}
}
public static bool UpdateJob(Job oldJob, Job newJob)
{
SqlConnection c = LoansDB.GetConnection();
string updateStatement = "UPDATE JobHistory SET " +
"JobTitle = @NewJobTitle, " +
"StartDate = @NewStartDate, " +
"EndDate = @NewEndDate, " +
"Salary = @NewSalary " +
"WHERE JobID = @oldJobID";
SqlCommand updateCommand = new SqlCommand(updateStatement, c);
updateCommand.Parameters.AddWithValue(
"@NewJobTitle", newJob.Job_Title);
updateCommand.Parameters.AddWithValue(
"@NewStartDate", newJob.Start_Date);
updateCommand.Parameters.AddWithValue(
"@NewEndDate", newJob.End_Date);
updateCommand.Parameters.AddWithValue(
"@newSalary", newJob.Salary);
updateCommand.Parameters.AddWithValue(
"@oldJobID", oldJob.JobID);
try
{
c.Open();
int count = updateCommand.ExecuteNonQuery();
if (count > 0)
{
return(true);
}
else
{
return(false);
}
}
catch (SqlException ex)
{
throw ex;
}
finally
{
c.Close();
}
}
public static bool DeleteJob(Job job)
{
SqlConnection c = LoansDB.GetConnection();
string deleteStatement = "DELETE FROM JobHistory " +
"WHERE JobID = @JobID;";
SqlCommand deleteCommand = new SqlCommand(deleteStatement, c);
deleteCommand.Parameters.AddWithValue(
"@JobID", job.JobID);
try
{
c.Open();
int count = deleteCommand.ExecuteNonQuery();
if (count > 0)
{
return(true);
}
else
{
return(false);
}
}
catch (SqlException ex)
{
throw ex;
}
finally
{
c.Close();
}
}
public static DataTable GetApplicantJobHistory(string primaryKey)
{
SqlConnection c = LoansDB.GetConnection();
string selectStatement = "SELECT CustID, JobID, JobTitle, StartDate, EndDate, Salary " +
"FROM JobHistory " +
"WHERE CustID = @CustID";
SqlCommand selectCommand = new SqlCommand(selectStatement, c);
selectCommand.Parameters.AddWithValue("@CustID", primaryKey);
try
{
c.Open();
SqlDataReader reader = selectCommand.ExecuteReader();
if (reader.HasRows)
{
DataTable dt = new DataTable();
dt.Load(reader);
return(dt);
}
else
{
return(null);
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
c.Close();
}
}