private void btnAdd_Click(object sender, RoutedEventArgs e)
{
try
{
using(var ctx = new MyContext())
{
var num=ctx.Employees.Where(x=> x.empId==txtEmpId.Text).Count();
if (num > 0)
{
System.Windows.MessageBox.Show("Employee ID already exists");
return;
}
if (txtEmpId.Text == "" || txtFName.Text == "" || txtLName.Text== "" || txtMName.Text=="")
{
System.Windows.MessageBox.Show("Please Complete the Information");
return;
}
Employee emp = new Employee { empId = txtEmpId.Text, FName = txtFName.Text, MI = txtMName.Text, LName = txtLName.Text, Photo = ConvertImageToByteArray(selectedFileName) };
ctx.Employees.Add(emp);
ctx.SaveChanges();
System.Windows.MessageBox.Show("Employee added successfully");
img1.Source = null;
resetGrid();
}
}
catch(Exception ex)
{
}
}
private void btnDel_Click(object sender, RoutedEventArgs e)
{
object item = dg1.SelectedItem;
string ID = (dg1.SelectedCells[0].Column.GetCellContent(item) as TextBlock).Text;
System.Windows.Forms.DialogResult r = System.Windows.Forms.MessageBox.Show("Are you sure you want to delete this record?","Question",MessageBoxButtons.YesNo);
if (r == System.Windows.Forms.DialogResult.Yes)
{
using (var ctx = new MyContext())
{
Employee emp = new Employee();
emp = ctx.Employees.Where(x => x.empId == ID).First();
ctx.Employees.Remove(emp);
ctx.SaveChanges();
System.Windows.MessageBox.Show("Employee successfully deleted");
resetGrid();
}
}
}
private void btnDel_Copy_Click(object sender, RoutedEventArgs e)
{
object item = dg1.SelectedItem;
String ID = (dg1.SelectedCells[0].Column.GetCellContent(item) as TextBlock).Text;
System.Windows.MessageBox.Show(ID);
byte[] imageArr;
using(var ctx=new MyContext())
{
var pic = ctx.Employees.Find(ID);
imageArr = pic.Photo;
}
BitmapImage bi = new BitmapImage();
bi.BeginInit();
bi.CreateOptions = BitmapCreateOptions.None;
bi.CacheOption = BitmapCacheOption.Default;
bi.StreamSource = new MemoryStream(imageArr);
bi.EndInit();
img1.Source = bi;
//Image img = new Image(); //Image control of wpf
//img.Source = bi;
}
private void resetGrid()
{
dg1.IsReadOnly = true;
try
{
List<Employee> list = new List<Employee>();
using (var ctx = new MyContext())
{
var Emp = from em in ctx.Employees
select em;
foreach (var item in Emp)
{
list.Add(item);
}
dg1.ItemsSource = ctx.Employees.ToList();
}
}
catch (Exception ex)
{
}
}