//Pre Condition: invoked when Patron, Edit menu is activated
// Post Condition: The file is opened
private void patronToolStripMenuItem1_Click(object sender, EventArgs e)
{
List <LibraryPatron> patrons; // List of patrons
patrons = _lib.GetPatronsList();
if ((patrons.Count() == 0)) // Must have patrons
{
MessageBox.Show("Must have patrons to edit!", "Edit Patron Error");
}
else
{
SelectPatronForm selectPatronForm = new SelectPatronForm(patrons); // The Select Patron dialog box form
DialogResult result = selectPatronForm.ShowDialog(); // Show form as dialog and store result
if (result == DialogResult.OK) // Only add if OK
{
try
{
PatronForm patronForm = new PatronForm(); // The patron dialog box form
LibraryPatron selected = patrons[selectPatronForm.PatronIndex]; //carry over the selection into the form
patronForm.PatronName = selected.PatronName; // sets Forms Patron Name property to one the user selects
patronForm.PatronID = selected.PatronID; // sets Form's Patron Id property to one the user selects
patronForm.ShowDialog(); // Show form as dialog and store result
if (result == DialogResult.OK) // Only add if OK
{
// Uses the forms properties to edit patron
selected.PatronName = patronForm.PatronName; // set patron's name to user's input
selected.PatronID = patronForm.PatronID; // set patron's id to user's input
}
patronForm.Dispose(); // Good .NET practice - will get garbage collected anyway
}
catch (ArgumentOutOfRangeException)
{
MessageBox.Show("Enter Input into the Proper Field", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (InvalidOperationException)
{
MessageBox.Show("Invalid Operation", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (FormatException)
{
MessageBox.Show("Please Enter Correct Format", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
selectPatronForm.Dispose(); // Good .NET practice - will get garbage collected anyway
}
}
// Precondition: Edit, Patron menu item activated
// Postcondition: The patron selected from the library has been edited
// with the new information replacing the existing object's
// properties
private void patronToolStripMenuItem1_Click(object sender, EventArgs e)
{
List <LibraryPatron> patrons; // List of patrons
patrons = _lib.GetPatronsList();
if ((patrons.Count() == 0)) // Must have checked out items
{
MessageBox.Show("Must have patrons to edit!", "Edit Error");
}
else
{
SelectPatronForm spForm = new SelectPatronForm(patrons); // The select patron dialog box form
DialogResult result = spForm.ShowDialog(); // Show form as dialog and store result
if (result == DialogResult.OK) // Only edit if OK
{
int editIndex; // Index of patron to edit
editIndex = spForm.PatronIndex;
if (editIndex >= 0) // -1 if didn't select item from combo box (should never happen!)
{
LibraryPatron editPatron = patrons[editIndex]; // The patron being edited
PatronForm patronForm = new PatronForm(); // The patron dialog box form
// Populate form fields from selected patron
patronForm.PatronName = editPatron.PatronName;
patronForm.PatronID = editPatron.PatronID;
DialogResult editResult = patronForm.ShowDialog(); // Show form as dialog and store result
if (editResult == DialogResult.OK) // Only update patron if OK
{
//Edits the dictionary so that it isn't corrupted due to the keys changing
//_lib.ChangePatronKey(patrons[editIndex].PatronID, editPatron.PatronID, editPatron);
// Edit patron properties using form fields
editPatron.PatronName = patronForm.PatronName;
//editPatron.PatronID = patronForm.PatronID; //(Edited out to prevent corruption of dictionary)
}
patronForm.Dispose(); // Good .NET practice - will get garbage collected anyway
}
}
spForm.Dispose(); // Good .NET practice - will get garbage collected anyway
}
}