Question

I have a requirment to invoke a controller method from the view page. On click of the link below the method should be invoked.

@Html.ActionLink(item.InvoiceNumber, "SendPdfStatement", "Invoice", 
                 new { item.InvoiceNumber }, new { target = "_blank" })

the method signature is as:

public void SendPdfStatement(string InvoiceNumber)
    {

        InvoiceNumber = InvoiceNumber.Trim();

        ObjectParameter[] parameters = new ObjectParameter[1];
        parameters[0] = new ObjectParameter("InvoiceNumber", InvoiceNumber);

        List<Models.Statement> list = new List<Models.Statement>();
        list = _db.ExecuteFunction<Models.Statement>("uspInvoiceStatement", parameters).ToList<Models.Statement>();

        var statementResult = _db.ExecuteFunction<Models.Statement>("uspInvoiceStatement", parameters);
        Models.Statement statement = statementResult.SingleOrDefault();

        pdfStatementController.WriteInTemplate(statement);                                 

   }

now the problem is when i click on the link, a blank window opens. I know it is something with new { target = "_blank" }. If i pass null in its place my page with link becomes blank. What shall i pass here so the my page remains as it is and no new blank window also appears.

Answer 1

Change your controller Action. The page that you get is blank because you are not returning anything. Do

 public ActionResult SendPdfStatement(string InvoiceNumber)

    {
    InvoiceNumber = InvoiceNumber.Trim();

        ObjectParameter[] parameters = new ObjectParameter[1];
        parameters[0] = new ObjectParameter("InvoiceNumber", InvoiceNumber);

        List<Models.Statement> list = new List<Models.Statement>();
        list = _db.ExecuteFunction<Models.Statement>("uspInvoiceStatement", parameters).ToList<Models.Statement>();

        var statementResult = _db.ExecuteFunction<Models.Statement>("uspInvoiceStatement", parameters);
        Models.Statement statement = statementResult.SingleOrDefault();

        pdfStatementController.WriteInTemplate(statement); 

    return View();
    }

EDIT:
Or you should use AJAX so that your page is not reloaded and you don’t have to return anything from your method. Read here http://www.asp.net/mvc/overview/older-versions-1/contact-manager/iteration-7-add-ajax-functionality-cs.