//function for update
void Update()
{
//create an instance of the menu item book
clsMenuItemCollection MenuItemBook = new clsMenuItemCollection();
//validate the data on the web form
String Error = MenuItemBook.ThisMenuItem.Valid(txtMenuItem.Text, txtPrice.Text);
//if the data is OK then add it to the object
if (Error == "")
{
//find the record to update
MenuItemBook.ThisMenuItem.Find(MenuItemNo);
// get the data entered by the user
MenuItemBook.ThisMenuItem.MenuItem = txtMenuItem.Text;
MenuItemBook.ThisMenuItem.MenuItemPrice = Convert.ToInt32(txtPrice.Text);
//update the record
MenuItemBook.Update();
// redirect back to the main page
Response.Redirect("MenuDefault.aspx");
}
else
{
// report an error
lblError.Text = "There were too many problems with the data entered " + Error;
}
}
public void UpdateMethodOK()
{
//create an instance of the class
clsMenuItemCollection AllMenuItems = new clsMenuItemCollection();
// create some test data to assign to the property
clsMenuItem TestItem = new clsMenuItem();
// var to store the primary key
Int32 PrimaryKey = 0;
// set the properties of the test object
TestItem.MenuItem = "Grapes";
TestItem.MenuItemPrice = 4;
// set this menu item to the test data
AllMenuItems.ThisMenuItem = TestItem;
// add the record
PrimaryKey = AllMenuItems.Add();
// set the primary key of the test data
TestItem.MenuItemNo = PrimaryKey;
// modify the test data
TestItem.MenuItem = "Qiwi";
TestItem.MenuItemPrice = 2;
// set the record based on the new test data
AllMenuItems.ThisMenuItem = TestItem;
// update the record
AllMenuItems.Update();
// find the record
AllMenuItems.ThisMenuItem.Find(PrimaryKey);
// test to see that the two values are the same
Assert.AreEqual(AllMenuItems.ThisMenuItem, TestItem);
}