private void bindInvoiceDetailLines(int invoiceID)
{
List <InvoiceDetail> invoiceDetails = null;
invoiceDetails = InvoiceDetailManager.GetInvoiceDetails(invoiceID);
gvTimeExpense.DataSource = invoiceDetails;
gvTimeExpense.DataBind();
}
protected void bindInvoiceDetails(int invoiceID)
{
List <InvoiceDetail> invoiceDetailLines = null;
decimal?totalAmount = 0;
invoiceDetailLines = InvoiceDetailManager.GetInvoiceDetails(invoiceID);
gvInvoiceLines.DataSource = invoiceDetailLines.OrderBy(x => x.LineDate);
gvInvoiceLines.DataBind();
// total invoice lines
if (invoiceDetailLines != null && invoiceDetailLines.Count > 0)
{
totalAmount = invoiceDetailLines.Where(x => x.isBillable == true).Sum(x => x.LineAmount);
txtTotalAmount.Text = string.Format("{0:N2}", totalAmount);
}
}
private void calculateLineTotal()
{
int invoiceID = 0;
decimal qty = 0;
decimal rate = 0;
decimal totalAmount = 0;
decimal taxableTotal = 0;
string unitDescription = null;
List <InvoiceDetail> invoiceDetails = null;
// get service unit type
Label lblUnitDescription = gvInvoiceLines.FooterRow.FindControl("lblUnitDescription") as Label;
if (lblUnitDescription != null)
{
unitDescription = lblUnitDescription.Text;
}
// get quantity
WebNumericEditor txtQty = gvInvoiceLines.FooterRow.FindControl("txtQty") as WebNumericEditor;
if (txtQty != null)
{
qty = txtQty.Value == null ? 0 : Convert.ToDecimal(txtQty.Value);
}
// rate
WebNumericEditor txtRate = gvInvoiceLines.FooterRow.FindControl("txtRate") as WebNumericEditor;
// remove any % symbol
if (txtRate != null)
{
rate = txtRate.Value == null ? 0 : Convert.ToDecimal(txtRate.Value);
}
if (!string.IsNullOrEmpty(unitDescription) && unitDescriptions.Contains(unitDescription.ToLower()))
{
rate /= 100; // make it a percent for "percentage, sales tax"
}
totalAmount = rate * qty;
if (!string.IsNullOrEmpty(unitDescription) && unitDescription.ToLower().Equals("sales tax"))
{
int.TryParse(ViewState["InvoiceID"].ToString(), out invoiceID);
invoiceDetails = InvoiceDetailManager.GetInvoiceDetails(invoiceID);
taxableTotal = (decimal)invoiceDetails.Where(x => x.isBillable == true &&
x.InvoiceServiceType.InvoiceServiceUnit.UnitID != SALES_TAX_ID)
.Sum(x => x.LineAmount);
totalAmount = taxableTotal * rate;
}
TextBox txtLineAmount = gvInvoiceLines.FooterRow.FindControl("txtLineAmount") as TextBox;
if (txtLineAmount != null)
{
txtLineAmount.Text = totalAmount.ToString("N2");
}
}