Hello Guys!

I am trying to create a functionality in which the i have a list of child records on edit page of parent object. In this list, i have an Edit and Delete button for every record. Deleting the child records is working well but i have issues with Edit, when Edit is clicked, it leads to nowhere. Below is my code. I have a bet on id is not captured by controller method. Please help!
 

Page:

<apex:page standardController="Account" tabStyle="Account" extensions="ContactExtension">
 <apex:form > 
    <apex:pageblock title="Custom Edit Account Page">
        <apex:pageBlockSection title="Information" columns="2">
            <apex:inputField value="{!Account.Name}">
                <apex:param name="AccountId" value="{!Account.Id}"/>
            </apex:inputfield>
            <apex:inputField value="{!Account.Type}"/>
            <apex:inputField value="{!Account.Industry}"/>
            <apex:inputField value="{!Account.AnnualRevenue}"/>
            <apex:inputField value="{!Account.Status__c}"/>
            <apex:inputField value="{!Account.Completion_Status_For_Opportunity__c}"/>
            <apex:inputField value="{!Account.Rating}"/>
            <apex:inputField value="{!Account.Fax}"/>
            <apex:inputField value="{!Account.Phone}"/>
            <apex:inputField value="{!Account.Website}"/>
            <apex:inputField value="{!Account.Ownership}"/>
            <apex:inputField value="{!Account.NumberOfEmployees}"/>
       </apex:pageBlockSection>
       
       <apex:pageBlockSection title="Address Information" columns="2">
   <!-- <apex:panelGrid columns="1"> !-->
            <apex:inputField value="{!Account.BillingStreet}"/>
            <apex:inputField value="{!Account.BillingCity}"/>
            <apex:inputField value="{!Account.BillingState}"/>
            <apex:inputField value="{!Account.BillingPostalCode}"/>
            <apex:inputField value="{!Account.BillingStreet}"/>
            <apex:inputField value="{!Account.BillingCountry}"/>
   <!-- </apex:panelGrid> --!>  
       
   <!-- <apex:panelGrid columns="1"> !-->
            <apex:inputField value="{!Account.ShippingStreet}"/>
            <apex:inputField value="{!Account.ShippingCity}"/>
            <apex:inputField value="{!Account.ShippingState}"/>
            <apex:inputField value="{!Account.ShippingPostalCode}"/>
            <apex:inputField value="{!Account.ShippingStreet}"/>
            <apex:inputField value="{!Account.ShippingCountry}"/>
  <!--  </apex:panelGrid> !-->  
       </apex:pageBlockSection>
       
       <apex:pageBlocksection title="Additional Information">
           <apex:inputField value="{!Account.CustomerPriority__c}"/>
           <apex:inputField value="{!Account.SLAExpirationDate__c}"/>
           <apex:inputField value="{!Account.NumberofLocations__c}"/>
           <apex:inputField value="{!Account.SLASerialNumber__c}"/>
           <apex:inputField value="{!Account.SLA__c}"/>
           <apex:inputField value="{!Account.UpsellOpportunity__c}"/>
       </apex:pageBlocksection>
       
       <apex:pageBlockSection title="Description">
           <apex:inputField value="{!Account.Description}"/>
       </apex:pageBlockSection> 
       
   <apex:pageBlockButtons location="Top">
       <apex:commandButton value="Save" Action="{!Save}"/>
       <apex:commandButton value="Cancel" Action="{!Cancel}"/>
   </apex:pageBlockButtons>
   
   <apex:pageBlockSection title="Related Contacts">
   
   </apex:pageBlockSection>
   <apex:commandButton value="Display Contacts" action="{!Check}" reRender="ajax" id="actionRender"/>
   
       <apex:pageBlockTable value="{!Conlist}" var="c" id="ajax">
           <apex:column headerValue="Action">
               <apex:commandButton value="Edit">
                   <apex:actionSupport event="onchange" action="{!EditRedirect}" >
                   <apex:param value="{!c.Id}" name="ContactToEdit"/>
                   </apex:actionSupport>
               </apex:commandButton>
           
               <apex:commandButton value="Delete" action="{!deletecontact}" reRender="ajax">
                   <apex:param value="{!c.id}" name="ContactToDelete"/>
               </apex:commandButton>
           </apex:column> 
           
           <apex:column value="{!c.Name}"/> 
           <apex:column value="{!c.Phone}"/>   
           <apex:column value="{!c.Active__c}"/>    
                
   </apex:pageblock>
 </apex:form>
</apex:page>

Class:

public class ContactExtension {

Public List<Contact> Conlist {set;get;}
Public String AccId {get;set;}
Public String var;

Public ContactExtension(ApexPages.StandardController sc)
{
    AccId = ApexPages.CurrentPage().getParameters().get('AccountId');
}

Public void Check()
{
    Conlist = [select id,name,Phone,Active__c from Contact where AccountId=:AccId];
}

Public void deletecontact()
{
    String ConId = ApexPages.CurrentPage().GetParameters().Get('ContactToDelete');
   
    List <Contact> ContactList = [select id,name from contact where id =: ConId];
    
    Delete ContactList;
    Check();
    
}

Public Boolean newId{get;set;}

Public PageReference EditRedirect()
{    
    var = ApexPages.CurrentPage().GetParameters().Get('ContactToEdit');
    
    return new Pagereference ('/'+var+'/e').setredirect(true);

}

}