Generate RDLC report using LINQ

Question

my database structure is like

ID, DESCRIPTION, VALUE 

when I try to generate the RDLC report I do

1. Add Report.rdlc

1. Add Dataset

My Code:

 

private void load_profile_btn_Click(object sender, EventArgs e)
{
historicalData_gb.Visible = false;
DataSet1TableAdapters.Load_ProfileTableAdapter tb4 = new DataSet1TableAdapters.Load_ProfileTableAdapter();
DataSet1.Load_ProfileDataTable ds = tb4.GetData();
Microsoft.Reporting.WinForms.ReportDataSource reportDataSource4 = new Microsoft.Reporting.WinForms.ReportDataSource("Load_Profile", ds.AsEnumerable().CopyToDataTable());
reportViewer1.LocalReport.DataSources.Clear();
reportViewer1.LocalReport.DisplayName = "Load Profile";
reportViewer1.LocalReport.ReportPath = @"C:\Users\SalmanMushtaq\documents\visual studio 2013\Projects\Sec_Report_Rdlc\Sec_Report_Rdlc\load_profile.rdlc";
reportViewer1.LocalReport.DataSources.Add(reportDataSource4);
reportViewer1.RefreshReport();
}

Now the report will appear like

ID, DESCRIPTION, VALUE

But I need to show the report like DESCRIPTION have 3 kind of entry i.e. P1,P2,P3 so I need to show like ID, P1, P2, P3, VALUE

For this I add Model "Linq to Sql" and now I need to show the report as I explain above. Please help.