private void butPrint_Click(object sender, EventArgs e)
{
Sheet sheet = SheetUtil.CreateSheet(SheetDefs.GetInternalOrCustom(SheetInternalType.ERA));
X835 x835 = _x835.Copy();
x835.ListClaimsPaid = new List <Hx835_Claim>()
{
_claimPaid
}; //Only print the current claim.
SheetParameter.GetParamByName(sheet.Parameters, "ERA").ParamValue = x835; //Required param
SheetParameter.GetParamByName(sheet.Parameters, "IsSingleClaimPaid").ParamValue = true; //Value is null if not set
SheetFiller.FillFields(sheet);
SheetPrinting.Print(sheet, isPreviewMode: true);
}