private void deleteCategoryButton_Click(object sender, EventArgs e)
{
int categoryNo = (int)categoryComboBox.SelectedValue;
bool categoryDeleted = false;
// Category cannot be deleted if it has sub categories
using (var core = new StandardBusinessLayer(DataCache)) {
core.Connect();
int subCategoriesCount = core.CountCategoriesByParentCategoryNo(categoryNo);
if (subCategoriesCount > 0)
{
MessageBox.Show("Kategorin kan inte tas bort eftersom den har underkategorier.", CurrentApplication.Name, MessageBoxButtons.OK, MessageBoxIcon.Stop);
return;
}
int cashBookTransactionsCount = core.CountCashBookTransactionsByCategoryNo(categoryNo);
if (cashBookTransactionsCount > 0)
{
MessageBox.Show("Kategorin kan inte tas bort eftersom den har registrerade kassabokshändelser.", CurrentApplication.Name, MessageBoxButtons.OK, MessageBoxIcon.Stop);
return;
}
Category category = core.GetCategory(categoryNo);
DialogResult result = MessageBox.Show("Är du säker på att du vill ta bort kategorin '" + category.Name + "'?", CurrentApplication.Name, MessageBoxButtons.YesNo, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button2);
if (result == DialogResult.Yes)
{
core.DeleteCategory(categoryNo);
categoryDeleted = true;
}
}
if (categoryDeleted)
{
ReloadForm();
}
}