Tag: Apex

Show error message in Visualforce Page

Show error message in Visualforce Page using ApexPages.addmessage apex error message Sometime we need to show error message on Visualforce page. We can implement this requirement by creating new instance of ApexPages.message and then adding message to Apexpages using ApexPages.addmessage. Then displaying these messages in visualforce page. We can add 5 different types of message …

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Export to Excel using VisualForce Page

Export to Excel using VisualForce Page By simply modifying the ContentType attribute on the <apex:page> tag, your Visualforce page code will automatically generate an Excel document. For example, the following code will create a table of Contact data for a given Account. After # in the contentType attribute value, it is the name of the excel file that will …

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Wrapper Class in Apex Salesforce

Wrapper class in Apex Salesforce Wrapper Class in Apex Salesforce : A wrapper or container class is a class, a data structure, or an abstract data type which contains different objects or collection of objects as its members. A wrapper class is a custom object defined by programmer wherein he defines the wrapper class properties. …

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