//Showing or Hiding the search controls and fields depending on received Enum
private void ShowAndHideSearchFields(eShowOrHide showHide)
{
//Creating the Array of elements for simple handling of GUI,
//instead of passing to GuiChanges class Methods each one of the controls,
//pass only one array variable. Simple and Effective
UIElement[] searchControls = { lblName, txtName, lblAuthor, txtAuthor,
lblIssue, txtIssue, lblBaseCategory, cmbBaseCategory,
lblInnerCategory, cmbInnerCategory };
//Switch depending on enum
switch (showHide)
{
//Show the search controls
case eShowOrHide.Show:
//Show the elements from the created array
GuiChanges.Show(searchControls);
//Fill the ComboBox of Base category
GuiChanges.FillComboWithBaseCategory(cmbBaseCategory);
//If no selection of Base Category made
if (cmbBaseCategory.SelectedItem == null)
{
//Hide the inner Category ComboBox
GuiChanges.Hide(lblInnerCategory, cmbInnerCategory);
}
break;
//Hide the search controls
case eShowOrHide.Hide:
//Hide the elements from the created array
GuiChanges.Hide(searchControls);
//Search for the text fields in elements array
foreach (UIElement item in searchControls)
{
//If the Control is Text Box
if (item is TextBox)
{
//Clear the contents of the Text Box, so
//this way there's no interfear with feauture search options
//when the fields will be enabled and visible again
((TextBox)item).Text = string.Empty;
}
}
//Clean the Combo Boxes of Base and Inner Categories
cmbBaseCategory.ItemsSource = cmbInnerCategory.ItemsSource = null;
break;
}
}
//Ctor for add new Item window
public AddNewItem()
{
InitializeComponent();
//Hide the labels and the text boxes ubtil user chooses Item Type
GuiChanges.Hide(lblIssue, lblAuthor, txtIssue, txtAuthor);
//Obvously understandable by function name
GuiChanges.FillComboWithBaseCategory(cmbBaseCat);
//Untill user choose the BaseCategory - disable inner
GuiChanges.Disable(cmbInnerCat);
}
//Update the fields from current Item
public void UpdateFromItem()
{
//creating the arrays for easy handling the Journal controls
UIElement[] issue = { lblIssue, txtIssue };
//creating the arrays for easy handling the Book controls
UIElement[] author = { lblAuthor, txtAuthor };
//-------------- Updating the fields from Current Item -------------//
lblISBN.Text = $"ISBN: {CurrentItem.ISBN}";
lblTypeOf.Text = CurrentItem.ItemType;
chkBorrowed.IsChecked = CurrentItem.IsBorrowed;
GuiChanges.FillComboWithBaseCategory(cmbBaseCat);
cmbBaseCat.SelectedItem = CurrentItem.BaseCategory;
txtName.Text = CurrentItem.Name;
dtPick.SelectedDate = CurrentItem.PrintDate;
switch (CurrentItem.ItemType)
{
case "Book":
GuiChanges.Hide(issue);
GuiChanges.Show(author);
txtAuthor.Text = ((Book)CurrentItem).Author;
break;
case "Journal":
GuiChanges.Hide(author);
GuiChanges.Show(issue);
txtIssue.Text = ((Journal)CurrentItem).IssueNumber.ToString();
break;
}
//-------------- Updating the fields from Current Item -------------//
}