Let's assume the following: The tag for the pushbutton is "update". The tag for the User ID editbox is "userid". The tag for the User name text box is "username".
Then in the callback function for update:
function update_Callback (hObject, eventdata, handles)
uid = get(handles.userid, 'String');
lookupTable = {
'UAK001' 'Joe'
'UAK002' 'Joel'
'UAK003' 'John'
'UAK004' 'Bob'
};
uname = '';
for i = 1:size(lookupTable,1)
if strcmp(lookupTable(i,1), uid)
uname = lookupTable(i,2);
break;
end
end
if ~isempty(uname)
set(handles.username, 'String', uname);
else
set(handles.username, 'String', 'Username not found!');
end
