Salesforce apex:commandButton does not execute the action - salesforce

Question

So I have this in the page:
< apex:commandButton id="songdbabc" value="Synch from song db" action="{!sendingSign}" />
and this in the controller:
public PageReference sendingSign(){
System.debug(' message ');
return null;
}
But everytime I press the button there isn`t any message in the "Log" I mean the action is not executed , any idea?

Answer 1

Do you have another variable or function with same name? I mean public String sendingSign {get; set;} or maybe public String getSendingSign()? These would "shadow" your action function. Do you have more than 1 controller extension in <apex:page> tag? they'd be checked for matching function names from right to left (so if you have few classes maybe it's calling the match from a class you're not looking at)
Open up your browser's JS console / network panel, see if there's any traffic recorded at all when you click the button...

Answer 2

Try changing your sendingSign method to :
public void sendingSign(){
System.debug(' message ');
}
And recheck your log.

Answer 3

EDIT: Fixed! Removed "Static" variables from my extension; all bad behavior cleared right up.
Original:
I had to build a stackoverflow account just so I could vent a little here. I'm facing the same issue, and found that it will only skip my action if I include a picklist on the same page. I've never had this issue.
this page runs the action, but doesn't include the picklist I want:
<apex:page standardController="Checklist_Template_Item__c" recordSetVar="Checklist_Template_Items__r" extensions="ChecklistTemplateItemMassApply">
<apex:form >
<apex:pageBlock >
<apex:commandButton action="{!myCustomAction}" value="Append/Remove" />
<apex:commandButton action="{!cancel}" value="Cancel"/>
<apex:variable value="{!appendValue}" var="appendValue"/>
<apex:variable value="{!selection}" var="selection"/>
<apex:pageBlockSection >
Include your selected items for select machine models.
<apex:inputText value="{!appendValue}"/>
</apex:pageBlockSection>
</apex:pageBlock>
</apex:form>
this page completely skips the action, but includes my picklist:
<apex:page standardController="Checklist_Template_Item__c" recordSetVar="Checklist_Template_Items__r" extensions="ChecklistTemplateItemMassApply">
<apex:form >
<apex:pageBlock >
<apex:commandButton action="{!myCustomAction}" value="Append/Remove" />
<apex:commandButton action="{!cancel}" value="Cancel"/>
<apex:variable value="{!appendValue}" var="appendValue"/>
<apex:variable value="{!selection}" var="selection"/>
<apex:pageBlockSection >
Include your selected items on certain machine models.
<apex:inputText value="{!appendValue}"/>
<apex:pageBlockSectionItem >
<apex:outputText value="Why tho"/>
<apex:selectList size="1" value="{!selection}" required="true">
<apex:selectOptions value="{!applyRemove}"/>
</apex:selectList>
</apex:pageBlockSectionItem>
</apex:pageBlockSection>
</apex:pageBlock>
</apex:form>
having either a page constructor or not, action doesn't run when the picklist is included:
extension v1:
public without sharing class ChecklistTemplateItemMassApply{
public static String appendValue{get;set;}
public static String selection{get;set;}
public static List<SelectOption> applyRemove{get;set;}
ApexPages.StandardSetController setCon;
public ChecklistTemplateItemMassApply(ApexPages.StandardSetController myController){
setCon = myController;
List<String> addList = new List<String>{'Applies_To__c'};
setCon.addFields(addList);
system.debug('addList = '+addList);
applyRemove = new List<SelectOption>();
applyRemove.add(new SelectOption('','--None--'));
applyRemove.add(new SelectOption('Include','Include'));
applyRemove.add(new SelectOption('Remove','Remove'));
}
public ApexPages.pageReference myCustomAction(){
system.debug('hey');
PageReference returnPage = new PageReference(ApexPages.currentPage().getParameters().get('retURL'));
system.debug('returnPage = '+returnPage);
return returnPage;
}
}
extension V2:
public without sharing class ChecklistTemplateItemMassApply{
public static String appendValue{get;set;}
public static String selection{get;set;}
public static List<SelectOption> applyRemove{get;set;}
ApexPages.StandardSetController setCon;
public ChecklistTemplateItemMassApply(ApexPages.StandardSetController myController){
setCon = myController;
List<String> addList = new List<String>{'Applies_To__c'};
setCon.addFields(addList);
system.debug('addList = '+addList);
applyRemove = new List<SelectOption>();
applyRemove.add(new SelectOption('','--None--'));
applyRemove.add(new SelectOption('Include','Include'));
applyRemove.add(new SelectOption('Remove','Remove'));
}
public void ApexPages.pageReference myCustomAction(){
system.debug('hey');
}
}