private void btnDeleteShipper_Click(object sender, EventArgs e)
{
try
{
int temp;
if (int.TryParse(tboShipperID.Text, out temp))
{
var data = new Shipper() { ShipperID = temp };
var mgr = new NorthwindManager();
mgr.DeleteShipper(data);
//feedback to user
PopulateShippersComboBox();
//clear the form textboxes
tboShipperID.Text = "";
tboCompanyName.Text = "";
tboPhone.Text = "";
}
else
{
MessageBox.Show("Please lookup a shipper before trying to delete.");
}
}
catch (Exception ex)
{
//TODO: Log the exception
Program.LogMessage(ex.Message);
MessageBox.Show(ex.Message);
}
}
private void btnDelete_Click(object sender, EventArgs e)
{
try
{
int shipperId;
if (int.TryParse(lblShipperID.Text, out shipperId))
{
//do the delete...
var info = new Shipper()
{
ShipperID = shipperId
};
NorthwindManager mgr = new NorthwindManager();
mgr.DeleteShipper(info);
PopulateShippersComboBox();
cboShippers.SelectedItem = 0;
}
else
{
MessageBox.Show("Please select a shipper before clicking [Lookup Shipper]");
}
}
catch (Exception ex)
{
//TODO: Log the exception
MessageBox.Show("Error: " + ex.Message);
}
}
private void btnAddShipper_Click(object sender, EventArgs e)
{
try
{
Shipper item = new Shipper()
{
CompanyName = tboCompanyName.Text,
Phone = tboPhone.Text
};
var mgr = new NorthwindManager();
item.ShipperID = mgr.AddShipper(item);
//Give some feedback to the user...
// - Update my combo-box
PopulateShippersComboBox();
// - My combo-box has the right shipper selected
cboShippers.SelectedValue = item.ShipperID;
// - Display the id fo the addd shipper
tboShipperID.Text = item.ShipperID.ToString();
}
catch (Exception ex)
{
//TODO: Log the exception
MessageBox.Show(ex.Message);
}
}
public int AddShipper(Shipper info)
{
using (var context = new NWContext())
{
context.Shippers.Add(info);
context.SaveChanges();
return info.ShipperID;
}
}
public void DeleteShipper(Shipper info)
{
using (var context = new NWContext())
{
var found = context.Shippers.Find(info.ShipperID);
if (found != null)
{
context.Shippers.Remove(found);
context.SaveChanges();
}
}
}
public void DeleteShipper(Shipper shipper)
{
using (var context = new NWContext())
{
//BEST practice. find shipper first, then delete
var found = context.Shippers.Find(shipper.ShipperID);
if (found != null)
{
context.Shippers.Remove(found);
context.SaveChanges();
}
}
}
public void Should_Add_Shipper()
{
//Arrange
var sut = new NorthwindManager(); // sut is short for "Situation Under Test"
var expected = new Shipper()
{
CompanyName = "Tin Hoang's Transporter Service",
Phone = "780.231.3123"
};
//Act
var actualId = sut.AddShipper(expected);
//Assert
Assert.True(actualId > 0);
Shipper actual = sut.GetShipper(actualId);
Assert.Equal(expected.CompanyName, actual.CompanyName);
Assert.Equal(expected.Phone,actual.Phone);
Assert.Equal(actualId,actual.ShipperID);
}
public void Should_Add_Shipper()
{
//Arrange
var sut = new NorthwindManager(); //sut is short for 'Scenario Under Test'
var expected = new Shipper()
{
CompanyName = "Montgomery Scott's Transporter Service",
Phone = "780.555.1212"
};
//Act
var actualId = sut.AddShipper(expected);
//Assert
Assert.True(actualId > 0);
Shipper actual = sut.GetShipper(actualId);
Assert.Equal(expected.CompanyName, actual.CompanyName);
Assert.Equal(expected.Phone, actual.Phone);
Assert.Equal(actualId, actual.ShipperID);
}
public void UpdateShipper(Shipper info)
{
//NOTE: See question and commentary on
// http://stackoverflow.com/questions/15336248/entity-framework-5-updating-a-record
using (var context = new NWContext())
{
context.Shippers.Attach(info);
context.Entry(info).State = EntityState.Modified;
context.SaveChanges();
}
}
public void Should_Delete_Shipper()
{
//Arrange
var sut = new NorthwindManager(); // sut is short for "Situation Under Test"
var expected = new Shipper()
{
CompanyName = "Tin Hoang's Transporter Service",
Phone = "780.231.3123"
};
expected.ShipperID = sut.AddShipper(expected);
//Act
sut.DeleteShipper(expected);
//Assert
Shipper actual = sut.GetShipper(expected.ShipperID);
Assert.Null(actual);
}
public void Should_Update_Shippers(Shipper existing)
{
//Arrange
existing.Phone = "780.999.9998";
var sut = new NorthwindManager();
//Act
sut.UpdateShipper(existing);
//Assert
var actual = sut.GetShipper(existing.ShipperID);
Assert.NotNull(actual);
Assert.Equal(existing.Phone, actual.Phone);
Assert.Equal(existing.CompanyName, actual.CompanyName);
}
private void btnUpdateShipper_Click(object sender, EventArgs e)
{
try
{
int shipperId;
if (int.TryParse(tboShipperID.Text, out shipperId))
{
//Do the update
var info = new Shipper()
{
ShipperID = shipperId,
CompanyName = tboCompanyName.Text,
Phone = tboPhone.Text
};
var mgr = new NorthwindManager();
mgr.UpdateShipper(info);
PopulateShippersComboBox();
cboShippers.SelectedValue = info.ShipperID;
}
else
{
MessageBox.Show("Please lookup a shipper before trying to update.");
}
}
catch (Exception ex)
{
//TODO: Log the exception
MessageBox.Show(ex.Message);
}
}
public void Should_Delete_Shipper()
{
//Arrange
var sut = new NorthwindManager(); //sut is short for 'Scenario Under Test'
var expected = new Shipper()
{
CompanyName = "Montgomery Scott's Transporter Service",
Phone = "780.555.1212"
};
expected.ShipperID = sut.AddShipper(expected);
//Act
sut.DeleteShipper(expected);
//Assert
Shipper actual = sut.GetShipper(expected.ShipperID);
Assert.Null(actual);
}
public void Should_Update_Shipper(Shipper existing)
{
//Arrange
existing.Phone = "780.999.999";
var sut = new NorthwindManager(); //sut is short for 'Scenario Under Test'
existing.Phone = "780.555.1212";
//Act
sut.UpdateShipper(existing);
//Assert
var actual = sut.GetShipper(existing.ShipperID);
Assert.NotNull(actual);
Assert.Equal(existing.CompanyName, actual.CompanyName);
Assert.Equal(existing.Phone, actual.Phone);
}
