/// <summary>
/// Constructs TreeNode object from database Category object
/// </summary>
/// <param name="db">database object</param>
/// <param name="cat">category object</param>
/// <param name="trv">tree view</param>
public TreeNodeCategory(DisksDB.DataBase.DataBase db, DataBase.Category cat, TreeViewCatalog trv)
: base(cat.Name, cat, true, true, "Category", -1, DateTime.Now, true, false, true, true, false)
{
Debug.Assert(null != trv);
this.trv = trv;
this.db = db;
this.cat = cat;
this.ImageIndex = TreeImages.Category;
this.SelectedImageIndex = TreeImages.CategoryOpen;
this.cat.NameChanged += new EventHandler(NameChanged);
this.cat.ChildItemAdded += new EventHandlerItemAdded(ChildItemAdded);
this.cat.ChildItemRemoved += new EventHandlerItemRemoved(ChildItemRemoved);
this.cat.ChildsChanged += new EventHandler(ChildsChanged);
}
/// <summary>
/// Explicitly loads/reloads tree contents
/// </summary>
public override void LoadTree()
{
try
{
this.rootCategory = this.DataBase.RootCategory;
if (null == this.rootCategory)
{
return;
}
this.rootCat = new TreeNodeCategory(this.DataBase, rootCategory, this);
this.rootCat.LoadTreeNodeChilds();
this.SelectedNode = this.rootCat;
}
catch (Exception ex)
{
ErrorMessenger.ErrorMessage(this, "Error occured while loading data", ex);
}
FillList();
}
private void saveCategory(object sender, EventArgs e)
{
if (categoryNameTextBox.Text.Length == 0)
{
MessageBox.Show(
"Please add a category name",
"Missing field",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
else if (categoryTypeComboBox.SelectedItem == null)
{
MessageBox.Show(
"Please select a category type",
"Missing field",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
var categoryName = categoryNameTextBox.Text;
var categoryType = categoryTypeComboBox.SelectedItem.ToString();
// database
if (isUpdating)
{
using (DataBase.DBContainer db = new DataBase.DBContainer())
{
var category = (from Categories in db.Categories
where Categories.Id == Category.Id
select Categories).FirstOrDefault();
if (category != null)
{
category.Name = categoryName;
category.TransactionType = categoryType;
}
db.SaveChanges();
}
didSaveButtonPress = true;
this.Close();
}
else
{
using (DataBase.DBContainer db = new DataBase.DBContainer())
{
DataBase.Category category = new DataBase.Category
{
Name = categoryName,
TransactionType = categoryType,
};
db.Categories.Add(category);
db.SaveChanges();
}
didSaveButtonPress = true;
// data set
this.dbData.Category.Rows.RemoveAt(0);
this.dbData.AcceptChanges();
// xml
String filePath = String.Format(
"{0}\\{1}",
Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments),
"DSCategories.txt"
);
this.dbData.WriteXml(filePath);
this.Close();
}
}
