Crystal report exceed processing jobs limit

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C#

ASP.NET

CrystalReports

i am getting error :

The maximum report processing jobs limit configured by your system administrator has been reached."

Having researched the topic online i found some solution,set registry value, specifically HKEY_LOCAL_MACHINE\SOFTWARE\Business Objects\Suite 12.0\Report Application Server\InprocServer\PrintJobLimit to "-1" ,but this solution is not working,if i adding crystal report dispose and close function in my code,the crystal report i generated will be empty. Below are my aspx code:

<asp:DropDownList ID="dllselection"  onchange="javascript:return dropdown(this);" runat="server" Style="border: groove" CssClass="form-control" AutoPostBack="true">
                    <asp:ListItem Text="On Job Training" Value="3"></asp:ListItem>
                    <asp:ListItem Text="Training Effectiveness Form" Value="4"></asp:ListItem>
                </asp:DropDownList>
<asp:Button ID="Button1" runat="server" Text="Generate" CssClass="btn btn-success" OnClick="Button1_Click" />
        <div id="dvReport">
            <CR:CrystalReportViewer ID="CrystalReportViewer1" runat="server" AutoDataBind="true" ToolPanelView="None" EnableDatabaseLogonPrompt="False" PrintMode="Pdf" />
        </div>

<pre lang="C#">protected void Page_Load(object sender, EventArgs e)
    {
        Response.Clear();
        Response.Buffer = true;
        if (IsPostBack)
        {
            if (dllselection.SelectedValue == "3")
            {
                ReportDocument myDataReport = new CrystalDecisions.CrystalReports.Engine.ReportDocument();
                myDataReport.Load(Server.MapPath("OJT.rpt"));
                myDataReport.SetDatabaseLogon("intranet", "cpgintranet@2016", "192.168.2.5", "INTRANET");
                myDataReport.SetParameterValue("T-ID", TextBox1.Text);
                CrystalReportViewer1.ReportSource = myDataReport;
                CrystalReportViewer1.DataBind();

            }
            else if (dllselection.SelectedValue == "4")
            {
                ReportDocument myDataReport = new CrystalDecisions.CrystalReports.Engine.ReportDocument();
                myDataReport.Load(Server.MapPath("TEFF.rpt"));
                myDataReport.SetDatabaseLogon("intranet", "cpgintranet@2016", "192.168.2.5", "INTRANET");
                myDataReport.SetParameterValue("T-ID", TextBox1.Text);
                CrystalReportViewer1.ReportSource = myDataReport;
                CrystalReportViewer1.DataBind();


            }
        }
    }

 protected void Button1_Click(object sender, EventArgs e)
    {
        Response.Clear();
        Response.Buffer = true;
if (dllselection.SelectedValue == "3")
            {
                ReportDocument myDataReport = new CrystalDecisions.CrystalReports.Engine.ReportDocument();
                myDataReport.Load(Server.MapPath("OJT.rpt"));
                myDataReport.SetDatabaseLogon("intranet", "abc@2016", "192.168.2.88", "INTRANET");
                myDataReport.SetParameterValue("T-ID", TextBox1.Text);
                CrystalReportViewer1.ReportSource = myDataReport;
                CrystalReportViewer1.DataBind();

            }
            else if (dllselection.SelectedValue == "4")
            {
                ReportDocument myDataReport = new CrystalDecisions.CrystalReports.Engine.ReportDocument();
                myDataReport.Load(Server.MapPath("TEFF.rpt"));
                myDataReport.SetDatabaseLogon("intranet", "abc@2016", "192.168.2.88", "INTRANET");
                myDataReport.SetParameterValue("T-ID", TextBox1.Text);
                CrystalReportViewer1.ReportSource = myDataReport;
                CrystalReportViewer1.DataBind();


            }
}

What I have tried:

Having researched the topic online i found some solution,set registry value, specifically HKEY_LOCAL_MACHINE\SOFTWARE\Business Objects\Suite 12.0\Report Application Server\InprocServer\PrintJobLimit to "-1" ,but this solution is not working,if i adding crystal report dispose and close function in my code,the crystal report i generated will be empty