/// <summary>
/// generate invoice no.
/// </summary>
/// <param name="companyId"></param>
/// <param name="financialYearId"></param>
/// <returns>
/// return invoice no.
/// </returns>
public async Task <GenerateNoModel> GenerateInvoiceNo(int companyId, int financialYearId)
{
int voucherSetupId = 2;
// get maxno.
int?maxNo = await GetQueryByCondition(w => w.CompanyId == companyId && w.FinancialYearId == financialYearId).MaxAsync(m => m.MaxNo);
GenerateNoModel generateNoModel = await common.GenerateVoucherNo(Convert.ToInt32(maxNo), voucherSetupId, companyId, financialYearId);
return(generateNoModel); // returns.
}