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Anilt Getting java.lang.ClassCastException error
Hi Everyone,
I want to display custom Exception in the page, so written code like ths
VF Code:
<apex:page controller="AgeException">
<apex:form >
<apex:pageMessages />
<apex:pageBlock >
<apex:inputText value="{!age}"/>
<apex:commandButton value="Submit" action="{!submit}"/>
</apex:pageBlock>
</apex:form>
</apex:page>
ApexCode:
Public class AgeException extends Exception
{
Public integer age {get; set;}
Public Pagereference submit()
{
If(age<20 || age>100)
{
throw new AgeException('Invalid Age: Age must be between 20 and 100');
}
}
}
Error:
java.lang.ClassCastException: common.apex.runtime.impl.ExecutionException cannot be cast to common.apex.runtime.bytecode.BytecodeApexObject
Please help me regarding this.
2nd question:
FYI....I've tried the same code with few modifications for adding the error message in the page and succeded
VF Code is same as above and Apex code as stated below
Public class ageexc
{
Public integer age {get; set;}
Public void submit()
{
If(age<20 || age>100)
{
ApexPages.addMessage(new ApexPages.Message(ApexPages.severity.WARNING, 'Invalid Age: Age must be between 20 and 100'));
}
}
}
Please let me know why is it working for adding error message and why is not working for adding Exception.
At last I'm able to add the error message in the VF Page..here is the code
<apex:page controller="ageexc">
<apex:form >
<apex:pageMessages />
<apex:pageBlock >
<apex:inputText value="{!age}"/>
<apex:commandButton value="Submit" action="{!submit}"/>
</apex:pageBlock>
</apex:form>
</apex:page>
public class ageexc
{
Public integer age {get; set;}
Public void submit()
{
If(age<20 || age>100)
{
ApexPages.addMessage(new ApexPages.Message(ApexPages.severity.WARNING, 'Invalid Age: Age must be between 20 and 100'));
}
}
}
All Answers
It works when I tried it. Note that you do not want to throw an exception. You'll get an error like this:
Visualforce Error Help for this Page customexception: Hah! Error is in expression '{!throwexp}' in component <apex:page> in page customexceptionThe user wouldn't be given a chance to correct the error. Any exception must be caught before falling back to the Visualforce engine or the entire page will be rendered invalid.
Just politely return the error message so they can fix their input.
As a side note, I'd say you should submit your case to support.
At last I'm able to add the error message in the VF Page..here is the code
<apex:page controller="ageexc">
<apex:form >
<apex:pageMessages />
<apex:pageBlock >
<apex:inputText value="{!age}"/>
<apex:commandButton value="Submit" action="{!submit}"/>
</apex:pageBlock>
</apex:form>
</apex:page>
public class ageexc
{
Public integer age {get; set;}
Public void submit()
{
If(age<20 || age>100)
{
ApexPages.addMessage(new ApexPages.Message(ApexPages.severity.WARNING, 'Invalid Age: Age must be between 20 and 100'));
}
}
}