h(i) = strcat('ha​ndles.uipa​nel',num2s​tr(i)), when I use set(h(i),'Visible','ON') ,it doesn't work

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Lisa Wu
Lisa Wu 2013-1-24
Well ,I have a for ...end
for b=1:9
h = strcat('handles.uipanel',num2str(b));
set(h,'Visible','ON');
end
Error:Error using set; Value must be a handle.
Thank you for your help!

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采纳的回答

Walter Roberson
Walter Roberson 2013-1-24
编辑：Walter Roberson 2013-1-24
http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F
In your situation you could use the dynamic fieldname approach.
  2 个评论
Jan
Jan 2013-1-24
I would even prefer not to let GUIDE create "handles.uipanel1", "handles.uipanel2", ..., but to create an array instead: "handles.uipanel(1)", etc. Then the loop can be omitted:
set(h.uipanel, 'Visible', 'ON');
But unfortunately the automatic code generation in GUIDE prefers to append the index to the name of the field. Then Walter's suggestion means:
for b = 1:9
set(handles.sprintf('uipanel%d', b), 'Visible', 'on');
end

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