Can someone help me Retrieve file from SQL Server vb.net -

No one can help me ?! I have a problem designating a table in this table (there is a problem with id_d, type_d, date_create_d, by the way, #Nbr_Som) and Nbr_Som nominated a table fonctionnaire when I document (document for work certificate) a foreign key references to print), document
(for example registred as a PDF file in a record D: \ BTS \ documents), so when I'm on the date of the year or month (VB .net) A search for a work certificate forme I want to isolate all files

This code In which crystalrepotviewer is:

Private System 2Onload (System.Object as ByVal Sender, System.View EventArgs as Byval) handles MyBase.Load Dynamic R New RCAttestationDeTravail Dim DT DataTable as in the form of < / p>

  dt = Form1.PFE_GRHDataSet.EnseignantS r.SetDataSource (DT) CrystalReportViewer1.ReportSource = r CrystalReportViewe r1.SelectionFormula = "{} EnseignantS.Num_SOM =" & amp; Form1.Num_SOMTextBox.Text '' Dimension String = String = "" as a Relative Relationship String as New Relation ":" File Name = "C: \ User \ Saved \ Document \" Attention De Travelel "& amp; Datastring & amp; "+" & Amp; Now. "," & Amp; Now. Minutes & amp; "," & Amp; Now. Second & amp; ".pdf" synergy Satdatasor (DT) pace. ExportsTodisk (Crystallation Lion. ExportFormat Type Portable DocFormat, Filename) End Sub