c#winforms本地报表处理时出错

Question

I want to generate RDLC Report on the basis of date. I have two DateTimePickers and a Button Controls on my WindowForm and a ReportViewer . I select from and To Date from DateTimePicker and When I click on a Button the ReportViewer should load from Database on the basis of Date .

Here is my Stored Procedure

CREATE PROCEDURE spGetBikeSalebyDate
(
    @FromDate   DateTime,
    @ToDate     DateTime
)
AS
    BEGIN
        SELECT * FROM tblSaleBike 
        WHERE DateOfPurchase BETWEEN @FromDate AND @ToDate
        ORDER BY DateOfPurchase asc
    END

and my C# code

        private void btnSearchBikeSale_Click(object sender, EventArgs e)
    {
        ShowReport();
    }

    private void ShowReport()
    {
        reportViewer1.Reset();
        DataTable dt = GetData(dtpSearchFromDate.Value.Date, dtpSearchToDate.Value.Date);
        ReportDataSource rds = new ReportDataSource("DataSet1", dt);
        reportViewer1.LocalReport.DataSources.Add(rds);
        reportViewer1.LocalReport.ReportPath = @"ReportSaleBikeByDate.rdlc";
        ReportParameter[] rParams = new ReportParameter[] {
            new ReportParameter("fromDate",dtpSearchFromDate.Value.Date.ToShortDateString()),
            new ReportParameter("toDate",dtpSearchToDate.Value.Date.ToShortDateString())
        };
        reportViewer1.LocalReport.SetParameters(rParams);//Error Occured Here
        reportViewer1.LocalReport.Refresh();
    }

    private DataTable GetData(DateTime fromDate , DateTime toDate)
    {
        DataTable dt = new System.Data.DataTable();
        using (SqlConnection con = new SqlConnection(CS))
        {
            SqlCommand cmd = new SqlCommand("spGetBikeSalebyDate",con);
            cmd.CommandType = System.Data.CommandType.StoredProcedure;
            cmd.Parameters.Add("@FromDate", SqlDbType.DateTime).Value = fromDate;
            cmd.Parameters.Add("@ToDate", SqlDbType.DateTime).Value = toDate;
            SqlDataAdapter ad = new SqlDataAdapter(cmd);
            ad.Fill(dt);
        }
        return dt;
    }

I have passed two parameters in fromDate and toDate in ReportViewer . When i put my program in a debug mood , and check the program and works fine ie DataTable returns values correctly but when it reach to SQL Parameters it throws an exception An error occurred during local report processing . I don't know why because my Report is in the root directory .I am also going to attach the snapshots. Please help me out.

Updated

This is my DataSet which takes two parameters

and this is Report Data

and this is the Exception Detail

Answer 1

The error is because the following statement

        new ReportParameter("fromDate",dtpSearchFromDate.Value.Date.ToShortDateString()),
        new ReportParameter("toDate",dtpSearchToDate.Value.Date.ToShortDateString())

The parameters must be written as they are in the stored procedure and you have take into consideration capital letters and small letters. The parameters should be as the following:

FromDate

ToDate