private void btUpdate_Click(object sender, EventArgs e)//Used to update an existing record
{
//validation for the textboxes being updated
temp = IV.DateValid(tbDOB.Text);
if (temp == false)
{
MessageBox.Show("Please enter Date Of Birth in format dd/mm/yyyy");
}
else
{
count++;
}
foreach (var c in gbxBorrowerData.Controls)
{
if (c is TextBox)
{
temp = IV.Null(((TextBox)c).Text);
if (temp == false)
{
count++;
}
}
if (c is ComboBox)
{
temp = IV.Null(((ComboBox)c).Text);
if (temp == false)
{
count++;
}
}
}
temp = IV.CharCheck(tbEmail.Text, Convert.ToString('@'));
if (temp == true)
{
count++;
}
else
{
MessageBox.Show("Please enter a valid email address");
}
temp = IV.CharCheck2(tbNumber.Text, "07");
temp2 = IV.CharCheck2(tbNumber.Text, "0161");
if (temp == false && temp2 == false)
{
MessageBox.Show("Please enter a valid contact number");
}
else
{
count++;
}
LengthCheck2(tbFName.Text, 25, temp, ref count);
LengthCheck2(tbSurname.Text, 20, temp, ref count);
LengthCheck2(tbSex.Text, 6, temp, ref count);
LengthCheck1(tbNumber.Text, 11, temp, ref count);
LengthCheck2(tbAddress.Text, 40, temp, ref count);
LengthCheck2(tbEmail.Text, 25, temp, ref count);
if (count == 18)//count = 18 when everything is valid
{
OleDbConnection Conn = new OleDbConnection(Program.ConnString);
Conn.Open();
OleDbCommand Cmd = new OleDbCommand();
Cmd.Connection = Conn;
//updates the databse to include what the user has changed
Cmd.CommandText = "UPDATE Borrowers";
Cmd.CommandText += " SET Firstname = '" + tbFName.Text + "', Surname = '" + tbSurname.Text + "', ";
Cmd.CommandText += " DateOfBirth = '" + tbDOB.Text + "', Sex = '" + tbSex.Text + "', ";
Cmd.CommandText += " Address = '" + tbAddress.Text + "', EmailAddress = '" + tbEmail.Text + "', ";
Cmd.CommandText += " ContactNumber = '" + tbNumber.Text + "', BorrowerCategory = '" + cbCategory.Text + "', Branch = '" + cbBranch.Text + "'";
Cmd.CommandText += " WHERE BorrowerNumber = '" + BorrowerNumber + "'";
Cmd.ExecuteNonQuery();
Conn.Close();
count = 0;//resets count
}
else
{
//MessageBox.Show(count.ToString());
MessageBox.Show("Please make sure that there are no empty fields and everything entered is valid. "); //tells the user to check the inputs
count = 0; //resets count
}
}
private void btAdd_Click(object sender, EventArgs e)
{
//Validation for all tbs
temp = IV.DateValid(tbDOB.Text);//uses the routine found in SampleLibrary to check whether the date of birth entered by the user is valid
if (temp == false)
{
MessageBox.Show("Please enter Date Of Birth in format dd/mm/yyyy");//message telling user the date is invalid and why
}
else
{
count++; //count is incremented if the date is valid
}
foreach (var c in this.Controls) //checks to see whether something has been entered in each textbox
{
if (c is TextBox)
{
temp = IV.Null(((TextBox)c).Text);
if (temp == false)
{
count++;//count is incremented if the textbox has something in it
}
}
if (c is ComboBox)//checks to see whether something has been selected for each combobox
{
temp = IV.Null(((ComboBox)c).Text);
if (temp == false)
{
count++;//count is incremented if the something has been selected for the combobox
}
}
}
temp = IV.CharCheck(tbEmail.Text, Convert.ToString('@'));//checks to see whether the email entered is valid using the routine found in SampleLibrary
if (temp == true)
{
count++;//count is incremented if email is valid
}
else
{
MessageBox.Show("Please enter a valid email address");//notifies user if email is invalid
}
//checks to see whether the contact number is valid
temp = IV.CharCheck2(tbNumber.Text, "07");
temp2 = IV.CharCheck2(tbNumber.Text, "0161");
if (temp == false && temp2 == false) //if the number doesn't start with '07' or '0161' then it is invalid
{
MessageBox.Show("Please enter a valid contact number"); //tells user number is invalid
}
else
{
count++;// count is incremented if valid
}
//checks whether everything entered is the correct length barring what is in the combo boxes as all the options they can choose from are correct
//count is incremented each time the lenght of an input is correct
LengthCheck2(tbFName.Text, 25, temp, ref count);
LengthCheck2(tbSurname.Text, 20, temp, ref count);
LengthCheck2(tbSex.Text, 6, temp, ref count);
LengthCheck1(tbNumber.Text, 11, temp, ref count);
LengthCheck2(tbAddress.Text, 40, temp, ref count);
LengthCheck2(tbEmail.Text, 25, temp, ref count);
if (count == 19)//count = 19 if all inputs are valid
{
//MessageBox.Show(count.ToString());
OleDbConnection Conn = new OleDbConnection(Program.ConnString);
Conn.Open();
OleDbCommand Cmd = new OleDbCommand();
Cmd.Connection = Conn;
//adds the new borrower to the database
string SQL = "INSERT INTO Borrowers ";
SQL += " VALUES('" + Convert.ToString(tbBorrowerNumber.Text) + "', '" + tbFName.Text + "',' " + tbSurname.Text + "', #" + tbDOB.Text + "#, '" + tbSex.Text + "', '" + tbAddress.Text + "', '" + tbEmail.Text + "','" + Convert.ToString(tbNumber.Text) + "','";
SQL += cbCategory.SelectedItem + "', '" + cbBranch.SelectedItem + "')";
Cmd.CommandText = SQL;
Cmd.ExecuteNonQuery();
Conn.Close();
count = 0; //resets count
foreach (var c in this.Controls) //clears all text boxes and combo boxes
{
if (c is TextBox && c != tbBorrowerNumber)
{
((TextBox)c).Text = String.Empty;
}
if (c is ComboBox)
{
((ComboBox)c).Text = String.Empty;
}
}
ID();//generates a new BorrowerNumber after all text boxes have been cleared
}
else//if there are any invalid inputs
{
//MessageBox.Show(count.ToString());
MessageBox.Show("Please make sure that there are no empty fields and everything entered is valid. "); //displays an error message
count = 0; //restes count
}
}
