please an full example

im making a table and the rows are the days of the month and also i need a time to make calcutlation any help please?

how can i put calendar in Visualforce to make  calculation inside it 

how can i make a wizard visualforce for a custom Object ? please help

please an full example

im making a table and the rows are the days of the month and also i need a time to make calcutlation any help please?

how can i put calendar in Visualforce to make  calculation inside it 

I currently have a Lightning that displays a list of custom Master object records. 

<aura:component implements="force:appHostable,flexipage:availableForAllPageTypes" controller="ListWhiteboardItemsApexController">
    
    <aura:attribute name="whiteboardItems" type="Whiteboard_Item__c[]"/>
    
    <aura:handler name="init" value="{!this}" action="{!c.doInit}" />
        
    <aura:iteration items="{!v.whiteboardItems}" var="whiteboardItem">  
            <c:whiteboardItem whiteboardItem="{!whiteboardItem}" "/>
    </aura:iteration>
    
   
    
</aura:component>

Each master record has many detail records attached to it. Would I need to do a database call for all the detail records? How do I reference them in my code?

Here was was the relationship looks like in the schema