如何检查值是否是有效的属性在Matlab中？ [英] How to check if value is valid property in Matlab?

问题描述

有没有一种方法来检查属性值是否对给定的hobject有效？
我把下面的'enable'属性作为一个例子，我的问题是一般属性，并假设你不知道所有可能接受的属性值。

Is there a way of checking whether a property value is valid for the given hobject? I took the 'enable' property below just as an example, my question is for general property, and assuming you don't know all the possible accepted properties values in advance.

% MyBtnObject is a standard push button

% this will be ok
set(MyBtnObject, 'enable', 'on');

% and this will not, but how can I check it?
set(MyBtnObject, 'enable', 'SomeInventedProp');

推荐答案

我可以使用 x = set（MyBtnObject，'enable'）获取enable属性的可能值，列为单元格数组 x 。

I've found the answer. I can use x = set(MyBtnObject, 'enable') to get the possible values to the enable property, listed as cell array x.

% find buttons
h = findobj('style', 'pushbutton');

% getting all the possible values for 'enable' property for all pushbuttons
% x = set(h, 'enable'), when h is array, will not work
x = arrayfun(@(x)(set(x, 'enable')), h, 'UniformOutput', false);

这篇关于如何检查值是否是有效的属性在Matlab中？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！