public ActionResult Delete(int?id)
{
if (id == null)
{
return(RedirectToAction("HttpError404", "Error"));
}
var category = _categoriesStorage.GetCategory((int)id);
if (category != null)
{
return(View(category));
}
else
{
return(RedirectToAction("HttpError404", "Error"));
}
}
private void Apply_Click(object sender, EventArgs e)
{
var allCategories = _categories.GetCategories();
// get the text and clean it up
var text = textName.Text;
text = text.Trim();
// is it empty?
if (text.Length == 0)
{
MessageBox.Show("The category name cannot be empty", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// does it already exist?
var item = allCategories.Where(c => string.Equals(c.Value, text, StringComparison.CurrentCultureIgnoreCase))
.Select(f => new { Key = f.Key, Value = f.Value })
.FirstOrDefault();
if (item != null)
{
if (GivenCategory == null // Given category is null, no we are trying to create a duplicate.
||
(item.Key != GivenCategory.Id) // the new string matches an existing string.
)
{
MessageBox.Show("The category name given already exists", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
// Get the selected folder id.
// We want to allow the user to select nothing, maybe they just want to
// classify the post and do nothing else with it.
var folderId = GetSelectedFolderId();
// did we change anything at all?
if (GivenCategory != null && GivenCategory == new Category(text, GivenCategory.Id, folderId))
{
// just ignore this.
DialogResult = DialogResult.Ignore;
Close();
return;
}
// we are updating a value
if (GivenCategory != null)
{
// change the name of the category.
_categories.RenameCategory(GivenCategory.Name, text);
}
else
{
// add the category
_categories.GetCategory(text);
}
// save the id of the folder.
_config.SetConfig(Categories.GetConfigName(text), folderId);
// and we are dome
DialogResult = DialogResult.OK;
Close();
}
