private void AddCategory(object sender, EventArgs e)
{
if (saveBtn.Text == "Save")
{
Regex letters = new Regex(@"^[A-Za-z ]+$");
Match categoryNameMatch = letters.Match(categoryBox.Text);
if (!categoryNameMatch.Success)
{
MessageBox.Show("Category contains only letters");
}
else
{
Models.Categories c1 = new Models.Categories();
c1.Name = categoryBox.Text;
using (LibraryEntities db = new LibraryEntities())
{
db.Categories.Add(c1);
db.SaveChanges();
}
FillCategories();
categoryBox.Clear();
}
}
else
{
using (LibraryEntities db = new LibraryEntities())
{
int categoryId = Convert.ToInt32(categoryTable.SelectedRows[0].Cells[0].Value);
Models.Categories newCat = db.Categories.Where(c => c.Id == categoryFound.Id).FirstOrDefault();
newCat.Id = categoryId;
Regex letters = new Regex(@"^[A-Za-z ]+$");
Match categoryNameMatch = letters.Match(categoryBox.Text);
if (!categoryNameMatch.Success)
{
MessageBox.Show("Category contains only letters");
}
else
{
newCat.Name = categoryBox.Text;
}
db.SaveChanges();
FillCategories();
}
}
}
private void DeleteCategory(object sender, EventArgs e)
{
using (LibraryEntities db = new LibraryEntities())
{
int catId = Convert.ToInt32(categoryTable.SelectedRows[0].Cells[0].Value);
Models.Categories c1 = db.Categories.Where(c => c.Id == catId).FirstOrDefault();
db.Categories.Remove(c1);
db.SaveChanges();
}
FillCategories();
Reset();
}
private void CategoryTable_RowHeaderMouseDoubleClick(object sender, DataGridViewCellMouseEventArgs e)
{
int catId = Convert.ToInt32(categoryTable.Rows[e.RowIndex].Cells[0].Value);
using (LibraryEntities db = new LibraryEntities())
{
categoryFound = db.Categories.Where(c => c.Id == catId).FirstOrDefault();
if (categoryFound != null)
{
categoryBox.Text = categoryFound.Name;
}
saveBtn.Text = "Update";
deleteBtn.Enabled = true;
}
}
