private async void btnRemove_Click(object sender, EventArgs e)
{
try
{
if (_transactionProductID > 0)
{
if (!_isFinishedSale)
{
var dialogResult = MetroMessageBox.Show(this, "Do you want to remove this product?", "Delete", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dialogResult == DialogResult.Yes)
{
var transactionProduct = await _transactionProductService.GetAsync(_transactionProductID);
if (!transactionProduct.IsPaid)
{
await _transactionProductService.RemoveTransactionProductAsync(_transactionProductID);
_transactionProductID = 0;
}
else
{
MetroMessageBox.Show(this, "Product is already paid. You cannot remove the product!", "Remove Product", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
await SetTransactionData();
await LoadProductsOnTransaction();
}
else
{
MetroMessageBox.Show(this, "You cannot delete products with finished Point of Sale Transaction!", "Remove Product", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MetroMessageBox.Show(this, "No record selected to remove", "Notification", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
catch (Exception ex)
{
MetroMessageBox.Show(this, ex.ToString());
}
}
private async Task SetTransactionProductData()
{
try
{
var transactionProduct = await _transactionProductService.GetAsync(_transactionProductID);
lblProductName.Text = "Product Name: " + transactionProduct.ProductName;
lblQuantity.Text = "Quantity: " + transactionProduct.Quantity;
lblOfQuantityOnCancel.Text = "of " + transactionProduct.Quantity;
lblOfQuantityOnReplace.Text = "of " + transactionProduct.Quantity;
txtQuantityToCancel.Text = transactionProduct.Quantity.ToString();
txtQuantityToReplace.Text = transactionProduct.Quantity.ToString();
}
catch (RecordNotFoundException ex)
{
MetroMessageBox.Show(this, "No product selected", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
this.Close();
}
catch (Exception ex)
{
MetroMessageBox.Show(this, ex.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}