I am trying to preview an apex:image in a visualforce page, which is going to be specified among this apex variable and taken from the static resources.

Here is my code

public sObject Object_A {set; get;}
Object_A = [SELECT Icon__c, ........];

Visualforce code

<apex:image url="{!URLFOR($Resource.Apex_Icons,'{!Object_A.Icon__c}.png')}"/>

But in this way I cant't get what is Object_A.Icon__c contains, instead of that I got an image that's named {!Object_A.Icon__c}.png

Attribution to: hasan.alkhatib

Possible Suggestion/Solution #1

You are already in a Visualforce expression because of the outer url="{! ... }" so should able to use simple string concatenation:

<apex:image url="{! URLFOR($Resource.Apex_Icons, Object_A.Icon__c + '.png') }"/>

Attribution to: Keith C
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