/// <summary>
/// function to clear the fields of windows form
/// </summary>
private void TextClear()
{
Name_T.Clear();
Age_T.Clear();
Salary_T.Clear();
EmailID_T.Clear();
}
/// <summary>
/// event handler of submit button which perform validation opertation
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Submit_Validation(object sender, EventArgs e)
{
///
//Name Validation
///
if (Name_T.Text == "" || Name_T.Text == null)
{
MessageBox.Show("Enter Name");
Name_T.Focus();
return;
}
else if (!(new Regex(@"^([A-Za-z]+)(\s[A-Za-z]+)*$").Match(Name_T.Text).Success))
{
MessageBox.Show("Enter Name");
Name_T.Focus();
return;
}
else if (Name_T.Text.Length < 7)
{
MessageBox.Show("Name Should Contain Min 6 Characters");
Name_T.Focus();
return;
}
else
{
Age_T.Focus();
}
///
//Age Validation
///
int ageV;
if (!(int.TryParse(Age_T.Text, out ageV)))
{
MessageBox.Show("Enter Valid Age");
Age_T.Focus();
return;
}
else if (ageV < 0 || ageV > 150)
{
MessageBox.Show("Age Limit from 1 to 150");
Age_T.Focus();
return;
}
else
{
Salary_T.Focus();
}
///
//Salary Validation
///
int salaryV;
if (!(int.TryParse(Salary_T.Text, out salaryV)))
{
MessageBox.Show("Enter Valid Salary");
Salary_T.Focus();
return;
}
else if (salaryV < 0)
{
MessageBox.Show("Salary can't be Negative");
Salary_T.Focus();
return;
}
else if (salaryV >= 0 && salaryV < 500)
{
MessageBox.Show("Salary can't be less then 500");
Salary_T.Focus();
return;
}
else
{
EmailID_T.Focus();
}
///
//EmailID Validation
///
if (!(new Regex(@"^[_a-z0-9-]+(.[a-z0-9-]+)@[a-z0-9-]+(.[a-z0-9-]+)*(.[a-z]{2,4})$").Match(EmailID_T.Text).Success))
{
MessageBox.Show("Enter valid EmailID");
EmailID_T.Focus();
return;
}
else
{
///
// File Operation
///
string fileName = "dataFile.txt";
System.IO.StreamWriter streamWriter = new System.IO.StreamWriter(fileName, true);
streamWriter.WriteLine("Name: " + Name_T.Text);
streamWriter.WriteLine("Age: " + Age_T.Text);
streamWriter.WriteLine("Salary: " + Salary_T.Text);
streamWriter.WriteLine("Email ID: " + EmailID_T.Text);
streamWriter.WriteLine();
streamWriter.Close();
TextClear();
Name_T.Focus();
}
}