Devexpress report viewer datasource filtering

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C#

SQL-Server

DevExpress

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Dear experts ;
i'm work on c# windows application project using entity framework , sql database and devexpress i'm create a report (devexpress report) and open viewer (ReportPrintTool)
i try to view the report from search form and filter if view active or not befor view but the report view all items active and disactive theris no filtring

What I have tried:

public partial class form name : Form
   {
       Entities.name db = new Entities.nameEntities();
       public form name()
       {
           InitializeComponent();
       }
       private void btnpreview_Click(object sender, EventArgs e)
       {
           rptname report = new rptname();
           //   this code not efficted
           if (rdioactive.Checked == true)
           {
               report.DataSource = db.name.Where(x => x.IsActive == true);
           }
           else if (rdiodisactive.Checked == true)
           {
               report.DataSource = db.name.Where(y => y.IsActive == false);
           }
           ReportPrintTool Ptool = new ReportPrintTool(report);
           Ptool.Report.CreateDocument();
           Ptool.ShowRibbonPreviewDialog();
       }