How to read data from components having dynamically generated id

I have dynamically generated few components(TextBox) with dynamic ids.

Can anybody help me out about how to read data  from these dynamically generated Components.

following is my code:

//On every button click i m adding these components to my titlewindow by calling this function.
                  public function lnkAdd(event:Event):void
                  {
                        QuantityCount=QuantityCount+1;
                        
                        txtQuantityCount.text=QuantityCount.toString();
                        
                        //QuantityLabel
                        var lblQuant:Label=new Label();
                        lblQuant.id="lblQuantity"+QuantityCount+" :";
                        lblQuant.text="Quantity :";
                        lblQuant.x=20;
                        lblQuant.y=(lblQuantity1.y+(75*(QuantityCount-1)));
                        lblQuant.name=lblQuant.id;
                        QuantityGrp.addElement(lblQuant);
                        
                        
                        //Quantity TextBox
                        txtQuant=new TextInput();
                        txtQuant.id="txtQuantity"+QuantityCount;
                        //txtQuant.text=txtQuant.id.toString();
                        txtQuant.x=71;
                        txtQuant.y=(txtQuantity1.y+(75*(QuantityCount-1)));
                        txtQuant.restrict="0-9";
                        
                        QuantityGrp.addElement(txtQuant);
                        
                        
                        //lblMainLocation
                        var lblMainLoc:Label=new Label();
                        lblMainLoc.id="lblMainLocation"+QuantityCount+" :";
                        lblMainLoc.text="MainLocation :";
                        lblMainLoc.x=201;
                        lblMainLoc.y=(lblMainLocation1.y+(75*(QuantityCount-1)));
                        lblMainLoc.name=lblMainLoc.id;
                        QuantityGrp.addElement(lblMainLoc);
                        
                        
                        //MainLocation dropdownlist
                        ddlMainLoc=new DropDownList();
                        ddlMainLoc.id="ddlMainLocation"+QuantityCount;
                        //ddlMainLoc.labelDisplay.text=ddlMainLoc.id.toString();
                        ddlMainLoc.x=279;
                        ddlMainLoc.y=(ddlMainLocation1.y+(75*(QuantityCount-1)));
                        ddlMainLoc.dataProvider=Locations;
                        ddlMainLoc.requireSelection=true;
                        ddlMainLoc.labelField="MainLocation";
                        QuantityGrp.addElement(ddlMainLoc);
                        
                        
                        //lblSubLocation
                        var lblSubLoc:Label=new Label();
                        lblSubLoc.id="lblSubLocation"+QuantityCount+" :";
                        lblSubLoc.text="SubLocation :";
                        lblSubLoc.x=415;
                        lblSubLoc.y=(lblSubLocation1.y+(75*(QuantityCount-1)));
                        lblSubLoc.name=lblSubLoc.id;
                        QuantityGrp.addElement(lblSubLoc);
                        
                        
                        //SubLocation dropdownlist
                        ddlSubLoc=new DropDownList();
                        ddlSubLoc.id="ddlSublocation"+QuantityCount;
                        //ddlMainLoc.labelDisplay.text=ddlMainLoc.id.toString();
                        ddlSubLoc.x=489;
                        ddlSubLoc.y=(ddlSublocation1.y+(75*(QuantityCount-1)));
                        ddlSubLoc.dataProvider=Locations;
                        ddlSubLoc.requireSelection=true;
                        ddlSubLoc.labelField="SubLocation";
                        QuantityGrp.addElement(ddlSubLoc);
                        
                        //lblDescription
                        var lblDescript:Label=new Label();
                        lblDescript.id="lblDescription"+QuantityCount+" :";
                        lblDescript.text="Description :";
                        lblDescript.x=613;
                        lblDescript.y=(lblDescription1.y+(75*(QuantityCount-1)));
                        QuantityGrp.addElement(lblDescript);
                        
                        
                        //Description textbox
                        txtDescript=new spark.components.TextArea();
                        txtDescript.id="txtDescription"+QuantityCount;
                        //txtDescript.text=txtDescript.id.toString();
                        txtDescript.x=678;
                        txtDescript.width=226;
                        txtDescript.height=59;
                        txtDescript.y=(txtDescription1.y+(75*(QuantityCount-1)));
                        QuantityGrp.addElement(txtDescript);
                        
                        
                        //lblDepartment
                        var lblDepart:Label=new Label();
                        lblDepart.id="lblDepartment"+QuantityCount+" :";
                        lblDepart.text="Department :";
                        lblDepart.x=6;
                        lblDepart.y=(lblDepartment1.y+(75*(QuantityCount-1)));
                        
                        QuantityGrp.addElement(lblDepart);
                        
                        
                        //Department dropdownlist
                        ddlDepart=new DropDownList();
                        ddlDepart.id="ddlDepartment"+QuantityCount;
                        //ddlMainLoc.labelDisplay.text=ddlMainLoc.id.toString();
                        ddlDepart.x=71;
                        ddlDepart.y=(ddlDepartment1.y+(75*(QuantityCount-1)));
                        ddlDepart.dataProvider=Departments;
                        ddlDepart.requireSelection=true;
                        ddlDepart.labelField="DeptName";
                        QuantityGrp.addElement(ddlDepart);
                        
                        
                        //lblUsers
                        var lblUser:Label=new Label();
                        lblUser.id="lblUsers"+QuantityCount+" :";
                        lblUser.text="Users :";
                        lblUser.x=229;
                        lblUser.y=(lblUsers1.y+(75*(QuantityCount-1)));
                        QuantityGrp.addElement(lblUser);
                        
                        
                        //Department dropdownlist
                        ddlUser=new DropDownList();
                        ddlUser.id="ddlUsers"+QuantityCount;
                        //ddlMainLoc.labelDisplay.text=ddlMainLoc.id.toString();
                        ddlUser.x=278;
                        ddlUser.y=(ddlUsers1.y+(75*(QuantityCount-1)));
                        QuantityGrp.addElement(ddlUser);
                        
                  }

As the ids are in string format i am not able to call it's(Textbox) text  property to get their values.


Help appreciated,