c# - value member in textbox and display member in combobox -

i have textbox , combobox , datatable (fill database) datatable has 2 columns 1 id , other name combobox bind datatable like

form1.combobox1.datasource = dt     form1.combobox1.displaymember = "name"     form1.combobox1.valuemember = "id" 

if user select display member combobox1 dropdown valuemember display in textbox1 like

private sub combobox1_selectedvaluechanged(byval sender system.object, byval e system.eventargs) handles combobox1.selectedvaluechanged     if combobox1.selectedindex = -1         return     else         textbox1.text = combobox1.selectedvalue.tostring     end if 

and other process if user enter value in textbox1 , in leave hanler of textbox1 write when id enter in textbox1 , leave control automatically selected corresponding display member in combobox1. if not exist clear textbox1

private sub textbox1_leave(byval sender system.object, byval e system.eventargs) handles textbox1.leave      dim dv dataview     if ( dv = dv.rowfilter = "id =" & textbox1.text.tostring) //select value memeber if record find //combobox1.text = finded diaplay member  else textbox1.text = string.empty combobox1.selectindex = -1 end if end sub 

inside textbox1_leave handler need have following:

private sub textbox1_leave(sender object, e eventargs) handles textbox1.leave     dim value string = textbox1.text     combobox1.selectedvalue = value end sub