RDLC报表显示存储于数据库的图片

CREATE PROCEDURE [dbo].[usp_File_Select]
AS
SELECT [Afd_nbr],[Picture],[PictureType],[FileExtension] FROM [dbo].[ApiFileDemo]
GO

 public DataTable GetFiles()
        {
            sp.ConnectionString = DB.SqlConnectionString();
            sp.Parameters = null;
            sp.ProcedureName = "usp_File_Select";
            return sp.ExecuteDataSet().Tables[0];
        }

 private void Data_Binding()
    {
        this.ReportViewer1.Reset();
        this.ReportViewer1.LocalReport.Dispose();
        this.ReportViewer1.LocalReport.DataSources.Clear();

        Microsoft.Reporting.WebForms.ReportDataSource rds = new Microsoft.Reporting.WebForms.ReportDataSource();
        rds.Name = "FileDataSet";

        FileEntity fe = new FileEntity();
        rds.Value = fe.GetFiles();

        this.ReportViewer1.LocalReport.ReportPath = Server.MapPath("~/Rdlc/ImageRpt.rdlc");
        this.ReportViewer1.LocalReport.DataSources.Add(rds);
        this.ReportViewer1.LocalReport.Refresh();
    }