Hello Friends, In this tutorial, I am going to present a working example that shows you, how you can pull a list of Account records in a popup window when the user checked the checkbox.

After completing this tutorial, you’ll able to:
  • Show salesforce record list in a popup window.
  • Show popup on checkbox checked event.
So, let’s begin,
 
Step 1: Login to your Salesforce Org. and open developer console.

Step 2: Navigate to File | New | Apex Class and create an apex class called PopupInVFpageController and replace the following code. 

PopupInVFpageController.apxc
 public with sharing class PopupInVFpageController {
 public boolean checkBoxVal{get;set;}
 public boolean displayPopup{get;set;}
      public PageReference closePopup() {
          displayPopup = false;
          return null;
      }       
      public pageReference method(){
          if(checkBoxVal==true)
          displayPopup = true;
          return null;
      }
 }
Step 3: Navigate to File | New | Visualforce Page and create a new Visualforce Page called PopUpWindowVFPage and replace the following markup.

PopUpWindowVFPage.vfp
 <style>
 .custPopup{
    background: #fff ;
    border-width: 2px;
    border-style:inset;
    z-index: 9999;
    left: 250px;
    padding:10px;
    position: absolute; 
    width: 650px;
    top:50px;
 }

 .popupBackground{
    background-color:black;
    opacity: 0.20;
    filter: alpha(opacity = 20);
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 9998;
 }
 </style>

 <apex:outputPanel id="tstpopup" >
  <apex:outputPanel styleClass="popupBackground" layout="block" rendered="{!displayPopup==true}"/> 
  <apex:outputPanel styleClass="custPopup" layout="block" rendered="{!displayPopup==true}" >
  <apex:include pageName="popup"/> 
  <apex:form >
  <apex:commandButton value="close" action="{!closePopup}"/>
  </apex:form>
  </apex:outputPanel>
  </apex:outputPanel>
 </apex:page>
Output:


 See also:

Conclusion:
Hope you like this tutorial, for any query or suggestions please feel free to comment.
Thank you.