Wrapper class usage in apex and visualforce pages.
A common use case for Visualforce is to present a list of sObjects, allowing a user to select a number of these, and then choose an action to apply to the selected entries. Marking an sObject entry as selected presents a challenge, as it is associating transient information, the selected status, with a record persisted in the Salesforce database.
The solution is to use a wrapper class to encapsulate or wrap an sObject instance and some additional information associated with the sObject instance.
In the below example i developed a visualforce page with delete functionality based on the selected account records. when ever user select's particular account records to delete then wrapper object holds the selected account...
Sunday, March 15, 2015
Friday, March 13, 2015
Visualforce Action Status with background loading image.
Visualforce Action Status with background loading image.
When a user carries out an action that results in a Visualforce form submission, for example,clicking a button, it can be useful to render a visual indication that the submit is in progress.Without this a user may click on the button again, or assume there is a problem and navigate away from the page. The standard Visualforce <apex:actionStatus /> component can display messages when starting and stopping a request, but these messages are easily missed, especially if the user is looking at a different part of the page.
In the below example, we will create a Visualforce...
Saturday, March 7, 2015
Standard Controller Extension,Custom Controller Extensions and Uploading the image and displaying in contact details page.
Standard Controller Extension,Custom Controller Extensions and Uploading the image and displaying in contact details page.
Hi,
In this post i am trying to give a small example on Standard Controller Extension. so the usage of Standard Controller Extension (or) Controller Extension is to extend the functionality.
Here the requirement is create a visualforce page using standard controller and extend the upload image functionality in VF page and display the image in Contact detail page. for this i created two fields in Contact object.
1). Created a Text field with Name "Srinivas__Images_Path__c" length of 255 to store...
