c# - Changing a label based on selected item of combobox -

attempting change text based on combobox selection. c#, windows form, combobox loads on form load. using ado entity data model map db, have tables added in. have combobox loads vendors, button says vendor. upon have 3 labels want display vendor name, city , zip. i'm having trouble figuring out how make label binded selected item combobox (the vendor selected) , make change.

quick edit: know button code wrong. i'm @ posted it. thanks!

    payablesentities payablesset = new payablesentities();     private void form1_load(object sender, eventargs e)     {         comboboxvendor.datasource = payablesset.vendors.tolist();         comboboxvendor.displaymember = "name";         comboboxvendor.valuemember = "vendorid";     }      private void buttongetvendor_click(object sender, eventargs e)     {          label5.text = comboboxvendor.selectedvalue;     } 

take @ selectedindexchanged & selectionchangecommitted events.