private void TxtBoxPurchacePrice_TextChanged(object sender, EventArgs e)
{
if (StockCheckInput.CheckInteger(TxtBoxPurchacePrice.Text))
{
double purchasePrice;
double coef;
purchasePrice = TxtBoxPurchacePrice.Text == string.Empty ? 0 : double.Parse(TxtBoxPurchacePrice.Text);
coef = txtCoef.Text == string.Empty ? 0 : int.Parse(txtCoef.Text);
lblFinalPrice.Text = (purchasePrice * coef).ToString();
}
}
private bool CheckIntegerInput()
{
return(StockCheckInput.CheckInteger(TxtBoxPurchacePrice.Text) && StockCheckInput.CheckInteger(txtCoef.Text) &&
StockCheckInput.CheckInteger(textBoxStockMin.Text) && StockCheckInput.CheckInteger(textBoxStockMax.Text));
}
