Tham khảo tài liệu 'practical database programming with visual c#.net- p6', công nghệ thông tin, cơ sở dữ liệu phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Bind Data to Associated Controls in Login Form 273 this new object and select the pass_word column by clicking on it. The data binding is done. Some readers may have noted that when we call the FillByUserNamePassWord method wcli eLogl nlormwithlourcolLimns user_name gacs_word faculty_id and student_idfrom the Login table. In fact we only fill two textbox controls on the form txtUserNameanO with iwoasaociatcdaolumns iarhe Login Oablc usec_ name annp tss_svord. Wo ondyneedtnknowir sse runiSinriticatatcheduscrasmc end passwordrnOared byrne user Isom the Logielatalvlfboth matchcOitems cea SefounO from theLn_rabanlc tbnSoginissuccessCutond wecanaonSsirue tatha next bound Cbatrolsbn wHbaisiloO wilistOsiecali-cal valurssSkrediniOeLogIaaaelc. StlonkrainetPis coes notmoWe tanm. InaacStPC do not wanttacetrievaaao coiemnfrbmSheLo_InSabie. IysCaad weinOywaea .oiia_ the malodedilcms mi dfemcmeand nasrwosnfrbm tiieLoglniaOICiH wecon Ont matchedusememe laOp lsowr rn wb do ooP c s ldsdst r wsOlltdeaasulSy_i_ ana student_id am 1 to matchedifemscanbe loane Oxaitlicn ginl aflailcb and a warman mesrnge dituslW b_ dlfalayca. Before we san oo ctOd with o_r eodino one we ccaO kt ot o n t out Hue Ooplasrag style of Shepafswnrdib Sixet fdboccr theposswocdlettf rr will be reaies erWadboasewocncenfstars rwOsn users enter them as the project is running. To mckeahishgwbeniaouspcoiecS wensed tdfcSrOo PcsswordChasnropcriy of the ioatSas dpi rS 3 To check the matched username and password entered by the user from the data source one can use Return a Single Value to Query Data for Login table. But here in order to simplify this check we use the Fill method to fill four columns in a mapped data table in the DataSet. Then we can oUe ckwhethor thisFiil otaawassbn Kit rr tnemcScneddoaaiScmsdaveOenn found. Otherwise no matche d data itemsare found. Now it is the .
