GUI help in calling an if elseif else function

Hi all,

I am trying to call out this if elseif else function in the GUI. So basically, the "what case box" represent the casenum, and the empty static box should call out a msg when "what case box" has a value.

Answer 1

[Walter Roberson]

Use the Callback property of the edit box to trigger the action. Remember that the edit box will be char (or cell array of char if Max>1 for the edit box) so you will need to str2double.

Note: you should not have any condition on the "else".

[Aser Zidan]

Thanks for pointing that out. I still keep getting this error message everytime I run it.

[Jan]

Please post the text as text and not as screenshot. Thanks.

The posted screenshot shows only a part of the error message. We need the full message instead.

After you have defined condition=str2double(...) you overwrite its value in the if block.

[Aser Zidan]

hi,

Actually when try to run it now, this code pops up:

Undefined function or variable 'gui_mainfcn'.

Error in demo2 (line 42)

gui_mainfcn(gui_State, varargin{:});

[Walter Roberson]

What is the result you expect from

str2double(set(handles.output, 'string'))

? Notice that is a set() call, not a get() call.