// Deletes the selected product + supplier combination shown in the datagridview
private void btnDelete_Click(object sender, EventArgs e)
{
string prodValue = dgvProducts.SelectedRows[0].Cells[1].Value.ToString(); // Gets the product of the selected row
string supValue = dgvProducts.SelectedRows[0].Cells[2].Value.ToString(); // Gets the supplier of the selected row
DialogResult result =
MessageBox.Show("Delete this item (" + prodValue + " - " + supValue + ")?"
, "Confirm Delete", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (result == DialogResult.Yes)
{
try
{
foreach (DataGridViewRow item in dgvProducts.SelectedRows)
{
dgvProducts.Rows.RemoveAt(item.Index);
ProductSupplierDB.DeleteProductSupplier(prodValue, supValue);
this.frmProduct_Load(this, null);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
}
}
// Add a new product + supplier combination
private void btnAddProduct_Click(object sender, EventArgs e)
{
string selProd = cboProductList.Text;
string selSup = cboSupplierList.Text;
if (ProductSupplierDB.CheckProductSupplierExists(selProd, selSup)) // Combination exists in the database, warn the user
{
MessageBox.Show("Warning: Item already exists.", "Duplicate Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else // Combination is not in database, add product
{
ProductSupplierDB.AddProduct(selProd, selSup);
dgvProducts.DataSource = ProductSupplierDB.GetProducts();
var MaxID = dgvProducts.Rows.Cast <DataGridViewRow>()
.Max(r => Convert.ToInt32(r.Cells["ID"].Value));
int rowIndex = 0;
foreach (DataGridViewRow row in dgvProducts.Rows)
{
if (row.Cells["ID"].Value.ToString() != MaxID.ToString())
{
rowIndex++;
}
else
{
dgvProducts.Rows[rowIndex].Selected = true;
dgvProducts.FirstDisplayedScrollingRowIndex = rowIndex;
break;
}
}
}
}
// Triggers when the form loads
private void frmProduct_Load(object sender, EventArgs e)
{
// Fills the dataviewgrid with table data pulled from the database
dgvProducts.DataSource = ProductSupplierDB.GetProducts();
dgvProducts.Columns[0].Width = 42;
dgvProducts.Columns[1].Width = 145;
dgvProducts.Columns[2].Width = 316;
// Data binding for the Products & Suppliers drop-down lists
this.productsTableAdapter.Fill(this.travelExpertsDataSet.Products);
// Load the suppliers combo box
this.LoadSupplierComboBox();
}
// Triggers the search box when the user types a search string
private void txtProductSupplierSearch_TextChanged(object sender, EventArgs e)
{
string searchBoxText = txtProductSupplierSearch.Text;
dgvProducts.DataSource = ProductSupplierDB.SearchProductSupplier(searchBoxText);
}