private void BtnSubSave_Click(object sender, EventArgs e)
{
if (txbSubID.TextLength > 0 & txbSubName.TextLength > 0)
{
Category cats;
if (comboDictionary.TryGetValue(cbCatName.SelectedIndex, out cats))
{
Subcategory new_subcat = new Subcategory(cats, txbSubID.Text, txbSubName.Text);
try
{
if (data_mode_sub == 1)
{
if (manager.AddNewSubcategory(new_subcat))
{
MessageBox.Show("Add new subcategory succeed!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
else if (data_mode_sub == 2)
{
if (manager.UpdateSubcategory(new_subcat))
{
MessageBox.Show("Update subcategory succeed!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
LoadViewSubcategories();
}
}
else
{
MessageBox.Show("Subcategory ID and Name can't be empty!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
txbSubID.Focus();
}
}
public bool DeleteSubcategory(Subcategory subcat)
{
bool result = false;
string myDeleteQuery = "DELETE FROM master_subcategory WHERE id='" + subcat.subcategory_id +
"' AND category='" + subcat.parent.category_id + "';";
MySqlCommand myCommand = new MySqlCommand(myDeleteQuery, dbConn);
try
{
int rows = myCommand.ExecuteNonQuery();
if (rows > 0)
{
return(true);
}
}
catch (Exception ex)
{
throw new Exception("Error delete master_subcategory! " + ex.Message);
}
return(result);
}
public bool AddNewSubcategory(Subcategory subcat)
{
bool result = false;
string myInsertQuery = "INSERT INTO master_subcategory (id, category, nama) VALUES ('" +
subcat.subcategory_id + "','" + subcat.parent.category_id + "','" + subcat.subcategory_name + "');";
MySqlCommand myCommand = new MySqlCommand(myInsertQuery, dbConn);
try
{
int rows = myCommand.ExecuteNonQuery();
if (rows > 0)
{
return(true);
}
}
catch (Exception ex)
{
throw new Exception("Error insert into master_subcategory! " + ex.Message);
}
return(result);
}
private void BtnSubDel_Click(object sender, EventArgs e)
{
if (dgvSubcat.SelectedRows.Count > 0 && cbCatName.SelectedIndex > 0)
{
gbSubCat.Enabled = true;
DataGridViewRow row = dgvSubcat.SelectedRows[0];
Category parent;
comboDictionary.TryGetValue(cbCatName.SelectedIndex, out parent);
Subcategory sel_cat = new Subcategory(parent, (string)row.Cells[0].Value, (string)row.Cells[2].Value);
if (MessageBox.Show("Are you sure want to delete ID: " + sel_cat.subcategory_id + "?",
"Confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
try
{
if (manager.DeleteSubcategory(sel_cat))
{
MessageBox.Show("Subcategory has been deleted!");
}
else
{
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
LoadViewSubcategories();
}
else
{
MessageBox.Show("Please select subcategory item first!");
}
}
