display the user details from the data base by the search by using like in the sqlite query

i have created custom view need to display the user detail from the database if the user is have the name staring from some name,all the names should display but when i am doing it displaying the last user detail multiple time for example if i have user details of type name jaya monika,jaya moni like that,it display the jaya moni two times rather than two different names here i am posting my sqlite query

Cursor c= mydatabase.query(true, TABLENAME_1, new String[] { KEY_Name,
            KEY_CellPhoneNumber,KEY_CompanyName,KEY_Email_id }, KEY_Name + " LIKE ?",
            new String[] {"%"+ name+ "%" }, null, null, null,
            null); 

and in AsyncTaski am retrieving the userdetail and adding them to userdetail modelcall like

DataHelper databasehelper = new DataHelper(Search.this);
            databasehelper.open();
            Cursor c= databasehelper.getAllCustomerDetailsByName(_name);
int nam = c.getColumnIndex(KEY_Name);
            int cellnumber = c.getColumnIndex(KEY_CellPhoneNumber);
            int company = c.getColumnIndex(KEY_CompanyName);
            int emailid = c.getColumnIndex(KEY_Email_id);

            CustomerSearchModel searchmodel = new CustomerSearchModel();
            for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext())
            {
                flag_data = true;
                searchmodel.setName(c.getString(nam));
                searchmodel.setCellphone(c.getString(cellnumber));
                searchmodel.setCompany(c.getString(company));
                searchmodel.setEmailid(c.getString(emailid));
                Log.i("Search", searchmodel.getName());
                Log.i("Search", searchmodel.getCellphone());
                Log.i("Search", searchmodel.getCompany());
                Log.i("Search", searchmodel.getEmailid());
                customerSearch.add(searchmodel);
            }
c.close();
            databasehelper.close();
            return customerSearch;

and in on create am setting adapter class as like this

searchAdapter = new CustomerSearchAdapter(Search.this, customerSearch);

and my customer adapter class is

public class CustomerSearchAdapter extends BaseAdapter {
    private ArrayList<CustomerSearchModel> customerSearchData;
    private LayoutInflater layoutInflater;
    private Context _context;

    public CustomerSearchAdapter(Context context,
            ArrayList<CustomerSearchModel> listData) {
        this.customerSearchData = listData;

        _context = context;

    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return customerSearchData.size();
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return customerSearchData.get(position);
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        final ViewHolder holder;
        if (layoutInflater == null)
            layoutInflater = (LayoutInflater) _context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        if (convertView == null) {
            convertView = layoutInflater.inflate(R.layout.custom_user_details,
                    null);
            holder = new ViewHolder();
            holder.customer_user_name = (TextView) convertView
                    .findViewById(R.id.user_name);
            holder.customer_company_name = (TextView) convertView
                    .findViewById(R.id.company_name);
            holder.customer_phone_number = (TextView) convertView
                    .findViewById(R.id.phone_number);
            holder.customer_emailid_number = (TextView) convertView
                    .findViewById(R.id.emailid_number);

            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }
        final CustomerSearchModel customDetailItem = (CustomerSearchModel) customerSearchData
                .get(position);

        holder.customer_user_name.setText(customDetailItem.getName());
        holder.customer_company_name.setText(customDetailItem.getCompany());
        holder.customer_phone_number.setText(customDetailItem.getCellphone());
        holder.customer_emailid_number.setText(customDetailItem.getEmailid());
        return convertView;
    }

    static class ViewHolder {
        TextView customer_user_name;
        TextView customer_company_name;
        TextView customer_phone_number;
        TextView customer_emailid_number;
    }

}

please help me to solve this problem i have strucked in this problem advance thanks for giving or suggesting me solution for this problem