Create a Modal Popup in Salesforce

When we develop our requirements, sometimes we need to show a popup for some operations. To solve this problem we develope the things using visualforce page and apex controller. So let’s start with the procedures to show the popup on visualforce pages.


Setup -> Visualforce Pages -> new

Put following code :

<apex:page controller="popupClass"> 
    <apex:commandButton value="Show" action="{!showPopup}" rerender="tstpopup"/> 
    <apex:outputPanel id="tstpopup"> 
      <apex:outputPanel styleClass="popupBackground" layout="block" rendered="{!displayPopUp}"/> 
      <apex:outputPanel styleClass="custPopup" layout="block" rendered="{!displayPopUp}"> 
        <apex:commandButton value="Hide Pop up" action="{!closePopup}" rerender="tstpopup"/> 
  <style type="text/css"> 
    .custPopup{ background-color: white; border-width: 2px; border-style: solid; z-index: 9999; left: 50%; padding:11px; position: absolute; width: 600px; margin-left: -240px; top:100px; } 
    .popupBackground{ background-color:black; opacity: 0.20; filter: alpha(opacity = 20); position: absolute; width: 100%; height: 100%; top: 0; left: 0; z-index: 9998; } 


Following are steps to create apex class:

Setup -> Apex Classes -> new

Put following code :

public class popupClass {
  public boolean displayPopup {get;set;} 
  public void closePopup() 
    { displayPopup = false; } 
  public void showPopup() 
    { displayPopup = true; } 

Following is the output of above-written code :


When you click on ‘Show’ button :



1 Comment
  1. Srinivas 2 years ago

    Hi Satyakam Singh,

    Thanks for your blog,

    It will more helpful for Developers or Learners to implement the same on any custom object.

    in pop up show input field value.(I feel that is more tricky and we can learn from experts like you).

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