Is it possible to edit read only page(same page)?

Question

I have created visual force page it's read only page. when I click the button called modify(find below images) it's redirect to same page with editable. Is it possible to create? can you please tell me how can I do this? Please find the attached images.

Answer 1

Here is a simple example how you can do this. As you can see you have to use condition disabled="{!enabled}" to disable/enable the fields. On button click you have to rerender the form with all fields enabled. Hope this will help.

VF Page

<apex:page controller="MyController">
    <apex:form id="theform"> 
         <apex:inputText value="{!blah}" disabled="{!enabled}"/>
         <apex:commandButton value="modify" action="{!modify}" rerender="theform"/>
    </apex:form>
</apex:page>

Controller

public Class MyController {
    public boolean enabled {
        get;
        set;
    }
    public String blah {
        get;
        set;
    }
    public MyController() {
        enabled = true;
    }
    public void modify() {
        enabled = false;
    }
}