Im not able to save the standard object account using Extensions by over-riding the SAVE method

Question

Im not able to save the standard object account using Extensions by over-riding the SAVE method Help me out guys
Thnks in advance

I'm getting this Error :

System.DmlException: Insert failed. First exception on row 0; first error: REQUIRED_FIELD_MISSING, Required fields are missing: [Account Name]: [Account Name] Error is in expression '{!savenow}' in component in page samplepage: Class.sampleExtension.savenow: line 19, column 1

Class.sampleExtension.savenow: line 19, column 1

Extension ::

public with sharing class sampleExtension { 

public String Type{get;set;}
public String Name{get;set;}
public String Region{get;set;}
public account acc = new account();

public sampleExtension(ApexPages.StandardController controller) {

}

    public PageReference savenow() {

    acc.Name = Name;

    acc.Type= Type;
    acc.Region__c= Region;
system.debug('name'  + acc.name + 'Type'  + acc.Type + 'Region'  + acc.Region__c  );
    insert acc;

    System.debug('nickName: '+Type);

    return null;
}

}

VF Page ::

<apex:page standardController="Account" extensions="sampleExtension" >    
    <p/>
<apex:form >

    <apex:inputField value="{!account.Name}"/> <p/>
     <apex:inputField value="{!account.Type}"/> <p/>
      <apex:inputField value="{!account.Region__c}"/> <p/>
    <apex:commandButton value="Save" action="{!savenow}"/>

</apex:form>

Answer 1

First of all there is no need to create separate variables for assigning values to new record i.e. Name, Type, Region etc if you are using inputfield on vf page.

Initiate "account" variable in constructor and declare that as getter/setter. Hope this works.