Skip to main content

How to use required attribute in picklist as like salesforce standard?

There is an attribute called Required which can be used in almost all visual-force component.If we use that attribute then red color mark will be appended with the field and if we don't enter any value ,try to save,then it shows one error(You must enter some value) just below to that field. 

For example:-
<apex:inputField value="{!account.Industry}" id="field1" required="true"/> 

save image Here Industry is a standard pick-list, if we write required = true, red mark is coming,however if we are making pick-list in controller and displaying using <apex:selectlist> and <apex:selectoptions> then red won't be displayed. 
<apex:selectList label="Picklist" multiselect="false" size="1" required = "true">
               <apex:selectOptions value="{!options }">
                  </apex:selectOptions>
 </apex:selectList>

 options = new list<SelectOption>();
        options.add(new SelectOption('-None-','-None-'));
        options.add(new SelectOption('A','A'));
        options.add(new SelectOption('b','b'));
        options.add(new SelectOption('c','c'));
        options.add(new SelectOption('d','d'));

It will display like below image
save image 
How can we display like standard pick-list?
Below is some code for this.
<apex:pageBlockSection id="someArea">
          <apex:pageBlockSectionItem >
               <apex:outputLabel value="picklistLabel"/>
                 <apex:outputPanel layout="block" styleClass="requiredInput">
                     <apex:outputpanel layout="block" styleClass="requiredBlock"/>
                     <apex:selectList label="Picklist" multiselect="false" size="1" >
                            <apex:selectOptions value="{!options }"/>
                   </apex:selectList>
                </apex:outputPanel>
                </apex:pageBlockSectionItem>
</apex:pageBlockSection>
save image
Labels:

Comments

Post a Comment

Popular posts from this blog

How to Create a Tooltip in Lightning Datatable ?

Imagine you have a datatable displaying a list of Contact records , and one of the columns shows the Account Name . The Account Name is a hyperlink that allows users to navigate to the Account record page. But what if users want to take a quick glance at some key Account fields —like Phone or Address—without navigating to the Account record? In Salesforce Classic, this was achieved using the Mini Page Layout feature from standard page. However, in Lightning Experience, we can implement a similar feature by adding a tooltip to the data table. Solution Overview: We’ll create a Lightning Web Component (LWC) that: Displays a data table with a clickable Account Name . Provides a tooltip that shows the Account's Phone and Address fields when users hover over the Account Name. Implementation Steps: 1. Data Preparation We need to retrieve the following fields for each Contact and its associated Account: Contact Fields : Name, Phone, Email Account Fields : Name, Phone, Billing Addre...
Post a Comment
Read more

📆 How to Get the Start and End Date of the Previous Quarter in Apex ?

 When working with Salesforce data, it's often necessary to filter or report on records from a specific quarter . If you're looking to retrieve the start and end dates of the previous quarter based on the current date, here’s a simple and reusable Apex utility you can use. 🔧 Apex Utility Methods Below are two helper methods: getStartDate() — Calculates the start date of the previous quarter . getEndDate() — Calculates the end date of the previous quarter , based on the start date. // Helper method to get the start date of the previous quarter private Date getStartDate () {     Date today = Date . today ();     Integer currentYear = today . year ();     Integer currentMonth = today . month ();     // Determine the first month of the previous quarter     Integer previousQuarterStartMonth = (( currentMonth - 1 ) / 3 ) * 3 + 1 - 3 ;     // Adjust the year if the previous quarter falls in the previ...
Post a Comment
Read more

How to Create/Delete file attachments(Content Document) through Apex ?

 There are 3 standard salesforce objects to store file attachments. Content Document, ContentDocumentVersion, ContentDocumentLink.  Here is the article to talk about these objects and relationship.  https://www.forcetalks.com/blog/contentdocument-and-contentversion-in-salesforce-an-overview/ ContentDocumentVersion ContentDocumentLink This post is all about how to create/delete content document though Apex. Here is code snippet // Insert Content Version record ContentVersion contentVersionRec = new ContentVersion(Title='filename',PathOnClient ='FileName.pdf',VersionData = bodyBlob,origin = 'H'); INSERT contentVersionRec; // this will insert one record in ContentDocument and ContentVersion , ContentDocument  is parent and  ContentVersion is child record // get contentdocument id contentVersionRec = [SELECT Id, Title, ContentDocumentId FROM ContentVersion WHERE Id = :contentVersionRec .Id LIMIT 1]; // Create Content Document Link record- This will attach ...
Post a Comment
Read more