How to save and retrieve fingerprint template to and from MySql using vb.net? -

i'm new fingerprint thing on vb.net , mysql. started trying use digitalpersona u.are.u 4500 , don't know how save template mysql database. want retrieve data mysql. here code. thank you! `

private enroller dpfp.processing.enrollment  protected overrides sub init()     mybase.init()     mybase.text = "fingerprint enrollment"     enroller = new dpfp.processing.enrollment()     ' create enrollment.     updatestatus() end sub  protected overrides sub process(byval sample dpfp.sample)     mybase.process(sample)      ' process sample , create feature set enrollment purpose.     dim features dpfp.featureset = extractfeatures(sample, dpfp.processing.datapurpose.enrollment)      ' check quality of sample , add enroller if it's     if (not features nothing)         try             makereport("the fingerprint feature set created.")             enroller.addfeatures(features)        ' add feature set template.                     updatestatus()              ' check if template has been created.             select case enroller.templatestatus                 case dpfp.processing.enrollment.status.ready    ' report success , stop capturing                     raiseevent ontemplate(enroller.template)                     setprompt("click close, , click fingerprint verification.")                     stopcapture()                  case dpfp.processing.enrollment.status.failed   ' report failure , restart capturing                     enroller.clear()                     stopcapture()                     raiseevent ontemplate(nothing)                     startcapture()              end select         end try     end if end sub  protected sub updatestatus()     ' show number of samples needed.     setstatus(string.format("fingerprint samples needed: {0}", enroller.featuresneeded)) end sub  private sub enrollmentform_load(sender system.object, e system.eventargs) handles mybase.load  end sub private sub initializecomponent()     me.suspendlayout()     '     'bioenrollment     '     me.autoscaledimensions = new system.drawing.sizef(6.0!, 13.0!)     me.clientsize = new system.drawing.size(1266, 630)     me.name = "bioenrollment"     me.resumelayout(false)     me.performlayout()  end sub` 

the digitalpersona fingerprint reader allow serialize fingerprint xml file......you store in database varchar(max).