HI,

I have a custom button "Remove from Territory", which when clicked deletes data, I want the user to get a promopt asking "Are you sure you want to RemoveFromTerritory", if the user clicks Yes only then the action should be executed. Thanks in advance.. 

VF Page Code:-


<apex:page standardcontroller="Account" extensions="RemoveFromTerritory" action="{!deleteterritory}">   

</apex:page>


Controller Code:-

global class RemoveFromTerritory {

public static List<UserTerritory> UserList{get;set;}

public RemoveFromTerritory (ApexPages.StandardController cont){
   
UserList=new List<UserTerritory>();
       
   }
  
  
  // public String u {get; set;}

//u = Userinfo.getUserId();

String UserId=Userinfo.getUserId();

static pagereference movetonext()
{


pagereference pageref= new pagereference('/servlet/servlet.Integration?lid=01rA0000000RGei&ic=1');

pageref.setRedirect(true);

return pageref;
}

  webservice static void deleteterritory(id accountid){
  
   /*if(apexpages.currentpage().getParameters().get('id')!=null)
       accountid=apexpages.currentpage().getParameters().get('id');*/
     
    /*    system.debug('@@@'+accountid);
        Account acc=[select id from Account where id=:accountid];
       
           
        UserList=[Select UserId,TerritoryId from UserTerritory where UserId=:Userinfo.getUserId()];
       
        //List<Group> GroupList=new List<Group>([Select Id from Group
            //                                where RelatedId =:UserList.TerritoryId]);
           
           
            Set<Id> TerritoryIds=new Set<Id>();
           
           
            for(UserTerritory ust: UserList){
               
                TerritoryIds.add(ust.TerritoryId);
               
               
            }
           
            List<Group> GroupList=[Select Id from Group
                                                   where RelatedId IN:TerritoryIds
                                                   and Type='Territory'];
                                                  
            Set<Id> GroupIds=new set<Id>();                                   
                                                  
            for(Group g: GroupList){
               
                 GroupIds.add(g.id);
                       
            }                                     
               
               
        AccountShare AccSh=[Select Id from AccountShare where UserorGroupId IN: GroupIds and AccountId=:acc.id];
                                                  
            ///AccountShare AccSh= [Select Id from AccountShare where UserorGroupId=:GroupList];
           
            delete AccSh;
           
              movetonext();    */
    }
   
   
   
    public pagereference deleteterritory(){
     
      String accountid;
     
      accountid=apexpages.currentpage().getParameters().get('id');
     
      system.debug('@@@'+accountid);
        Account acc=[select id from Account where id=:accountid];
       
           
        UserList=[Select UserId,TerritoryId from UserTerritory where UserId=:Userinfo.getUserId()];
       
        //List<Group> GroupList=new List<Group>([Select Id from Group
            //                                where RelatedId =:UserList.TerritoryId]);
           
           
            Set<Id> TerritoryIds=new Set<Id>();
           
           
            for(UserTerritory ust: UserList){
               
                TerritoryIds.add(ust.TerritoryId);
               
               
            }
           
            List<Group> GroupList=[Select Id from Group
                                                   where RelatedId IN:TerritoryIds
                                                   and Type='Territory'];
                                                  
            Set<Id> GroupIds=new set<Id>();                                   
                                                  
            for(Group g: GroupList){
               
                 GroupIds.add(g.id);
                       
            }                                     
               
               
        AccountShare AccSh=[Select Id from AccountShare where UserorGroupId IN: GroupIds and AccountId=:acc.id];
                                                  
            ///AccountShare AccSh= [Select Id from AccountShare where UserorGroupId=:GroupList];
           
            delete AccSh;
           
            pagereference pageref= new pagereference('/servlet/servlet.Integration?lid=01rA0000000RGei&ic=1');

pageref.setRedirect(true);

return pageref;
    }
}