How do i show multiple rdlc report in one report veiwer in c#

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RDLC

I am doing a project in c# using visual studio 2012. I want to prepare RDLC report form one form and the send it to report viewer control which is in another form. So that I use only one report viewer control for all reports. I did thousands of reports following this process in VB.net using RDLC and Crystal Report. But I can not do this in c# using RDLC. Following is what I did in VB.net.

Dim objreport As New frmReportViwer
Dim rds As ReportDataSource = New ReportDataSource("dsReportData", dt)
objreport.rvrReportViwer.LocalReport.DataSources.Clear()
objreport.rvrReportViwer.LocalReport.DataSources.Add(rds)
objreport.rvrReportViwer.RefreshReport()
objreport.Show()

I can not access report viewer control of other form in C#. Can any one help me?

What I have tried:

What I tried as follow-
public SaleSlipViwer objreportviwer = null; // SaleSlipViwer is the form in which I placed the report viewer

public PointOfSale()
{
InitializeComponent();
objreportviwer = new SaleSlipViwer();
}

And then try to access ReportViewer this way

objreportviwer.rvrReportViwer.LocalReport.DataSources.Clear();

But it does not work.