Hi All,
I have a detail page Button(VF) to create a Components records for the parent record in standard Page.

After entering a input in VF page, If I press the Enter Key button before saving the record...automatically it's redirecting to the parent record page.

Due to this, I Lost my All Input values.Kindly Assist me to overcome this issue.

My VF page :

<apex:page standardController="Product2" extensions="AddProductComponent">


    <apex:form >
    
        

        <apex:pageMessages id="err"></apex:pageMessages>
      
       <apex:pageBlock title="Product Informations">
          
       <div align ="Right"> <apex:commandButton value="Back" action="{!Cancel}" /> </div>
        <table width="80%">
        <tr>
        <td>Product name</td>
        <td>{!Product2.name}</td>
        </tr>
        <tr>
        <td>Product Code</td>
        <td>{!Product2.ProductCode}</td>
        </tr>
        <tr>
        <td>Product Category</td>
        <td>{!Product2.Family}</td>
        </tr>
        </table>
   
        <apex:pageblockButtons location="bottom" >
        <apex:inputtext value="{!addCount}"/>
        <apex:commandButton value="Add Row" action="{!addRows}" rendered="{!show1}"/>
        
        </apex:pageblockButtons>
          <apex:pageblockButtons location="bottom">
        <apex:commandButton value="Save" action="{!save}"/>
        <apex:commandButton value="Cancel" action="{!Cancel}"/>
        </apex:pageblockButtons>
        
        </apex:pageBlock>
          
        <apex:pageBlock title="Component Informations" rendered="{!show1}" >  
        <apex:pageBlockTable value="{!wrappers}" var="wrapper" id="wtable">
        <apex:column headerValue="Ident">
        <apex:outputText value="{!wrapper.ident}"/>
        </apex:column>
        
      <apex:column headerValue="Raw Material Name">
        <apex:inputField value="{!wrapper.bkmas.Raw_Material__c}">    
        </apex:inputField>        
         </apex:column> 
      
        
        <apex:column headerValue="Measurement">
        <apex:inputfield value="{!wrapper.bkmas.Measurement__c}"/>
        </apex:column>
        
        <apex:column headerValue="Quantity">
        <apex:inputfield value="{!wrapper.bkmas.Quantity__c}"/>
        </apex:column>
        
        <apex:column headerValue="Description">
        <apex:inputfield value="{!wrapper.bkmas.Description__c}"/>
        </apex:column>
        </apex:pageBlockTable>
        
      
        </apex:pageBlock>
        

    </apex:form>
</apex:page>

Apex Class:

public class AddProductComponent {

   //Declarartions
    List<Product2> LstProduct = new List<Product2>();
    List<Component__c> lstComp = new List<Component__c>(); 
    String RecId;
    
    public static Integer addCount {get; set;}
    private Integer nextIdent=01;
    List<Innerclass> wrappers = new  List<Innerclass>();
    boolean show = true;
    boolean show1 = true;
    
    public AddProductComponent(ApexPages.StandardController controller) {
        RecId = ApexPages.currentPage().getParameters().get('id');
        LstProduct = [Select Id,Name,ProductCode,Family,Total_No_of_Raw_Materials__c
                      from Product2 where id=:RecId];
        lstComp  = [select id,Name,Raw_Material__c,Quantity__c,Measure_Unit__c,Description__c, 
                    Product__c ,Measurement__c,Raw_Material__r.Code__c, RawMaterial_Code__c from Component__c where Product__c =: RecId];
        
        if(lstComp.size()<=0){
            addRows();
        }
        else {
            show1 = false;
            Message();
        }            
        
    }
    
    public boolean getshow()
    {
         return show;
    }
    
    public boolean getshow1()
    {
         return show1;
    }
    
    public List<Innerclass> getwrappers()
    {
    return wrappers;
    }
   
    Public Void Message(){
       
          ApexPages.addmessage(new ApexPages.message(ApexPages.severity.WARNING,'You cannot enter Components to this Product, Please use Edit Component Button'));
    }
    
    public void addRows()
    {   
        for (Integer idx=0; idx<addCount; idx++)
        {
        wrappers.add(new Innerclass(nextIdent++));
        }
    }
    
    
    public pagereference save()
    {
        List <Component__c>  lstcomp =  new List <Component__c>();
        for(Innerclass wrap:wrappers)
        {
            Component__c component =  new Component__c();
            string ident = string.valueof(wrap.ident);
            if(ident.length()== 1) {
                 component.Name = '0'+ ident;
            } else{
                component.Name = ident;
            }
            component.Raw_Material__c = wrap.bkmas.Raw_Material__c;
            component.Quantity__c = wrap.bkmas.Quantity__c;
            component.Description__c = wrap.bkmas.Description__c;
            component.RawMaterial_Code__c = wrap.bkmas.RawMaterial_Code__c;
            component.Measurement__c = wrap.bkmas.Measurement__c;
            component.Product__c = Recid;
            lstcomp.add(component);
        }
        try {
            insert lstcomp;
            PageReference acctPage = new PageReference ('/' + RecId);
            acctPage.setRedirect(true);
            return acctPage;   
        } catch (exception ex) {
            apexpages.message err = new apexpages.message(apexpages.severity.ERROR,ex.getmessage());
            apexpages.addmessage(err);
            return null;
        }
    }
    
    
   //Intermediate Class()
    public class Innerclass
    {
    public string CustomId;
    public Component__c bkmas {get; private set;}
    public Integer ident {get; private set;}
        public Innerclass(Integer inIdent)
        {

        ident=inIdent;
        bkmas =new Component__c ();
        }
    }
}