ios4 - ios manipulating a views elements programmatically -

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i want change hidden property of elements programmatically based on button click. in javascript document.getelementbyid('element').display = 'block'. there way of doing ios like: self.'element'.hidden = no;

uiview has boolean property called hidden, no default, can set yes hide view. retrieve views, possible assign tags, merely integers (default 0):

[myview settag:10];

so..

[[myparentview viewwithtag:10] sethidden:yes];

this pretty similar js, otherwise can iterate on subviews:

nsarray *viewsarray = [parentview subviews];  (uiview *view in viewsarray) {    // ... }

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