pop up menu in GUI that connected and read from .mat file

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Luhur
Luhur 2012-5-30
i have 3 pop up menu that related and connected each other, at first i have 1 structure that contain 2 member data (save under the name car.mat).
let say: Car.truck.a=[5,6,3;1,1,1] Car.truck.b=[2,2,2;1.9.7] and Car.jeep.c=[10,20,30;6,6,6] Car.jeep.d=[7,7,7;0,2,4]
the 3 pop up menu are related, for example if i chose popup1 the string is jeep and truck, then after chose 1 ,let say i chose jeep, then the 2nd popup menu (popup2) pop up menu option become c or d, then after i chose d, the pop up menu option become (1,1), (1,2), (1,3),(2,1),(2,2) and (2,3). then after i chose (2,1) the value of text is 0.
how can i built this kind of case?? please be more specific, cause i'm a beginner... :) thank you

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回答（1 个）

Walter Roberson
Walter Roberson 2012-5-30
set() the pop-ups Enable property to be 'off' to start, except the first one. As each pop-up is used, it should set the next one's Enable to 'on', and set the String property to fieldnames() of the next layer.
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Walter Roberson
Walter Roberson 2012-5-30
Start at the beginning: how do you set the Enable property of those items to be 'off' ? And how, in a callback, do you set the Enable property of one of them to be 'on' ?
Luhur
Luhur 2012-5-31
would you mind just giving me the demo or an example that similar to my application??

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