Fetch all records starting with 100

Hi All,

          I am having a dialog and in my dialog field i have used to retrieve one value but my requirement is if i am giving 100* in my dialog it should fetch all the values starting with 100 Pls help me out.I have attached my code for your reference

Dialog          dialog;
    dialogGroup    dialogGroup;
    DialogBox       dialogBox;
    DialogField     itemNumbers;

    dialog = new Dialog("enter the Itemnumber");
    dialogGroup=dialog.addGroup("Product");

itemNumbers = dialog.addField(identifierStr(FreeText));
    
     dialog.run();

    if (dialog.run())
    {
       info(strFmt("Ok %1",itemNumbers.value()));

}