Adding a checkBox to a custom layout ListView makes the last one doesn't respond to a click

I have made a custom layout for my listView, when i test my app without the checkbox inside the layout the listview's items responds to any click, but when i add the checkbox to the layout, the listview's items doesn't respond to any click. I have read so many topics about but i can't find the correct answer. That is a part of my code, listviewrows.xml:

     <LinearLayout
     ...

     <TextView android:id="@+id/time_cell"
         android:layout_width="0dip"
         android:layout_height="wrap_content"
         android:gravity="center"  
         android:layout_weight="12"/>
     <TextView android:id="@+id/visco_cell"
         android:layout_width="0dip"
         android:layout_height="wrap_content"
         android:gravity="center"  
         android:layout_weight="19"/>
     <CheckBox
         android:id="@+id/checkBox1"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:gravity="center"
         android:layout_weight="1"
         android:checked="false"/> 

</LinearLayout>

My activity layout:

    <LinearLayout
    ...
    <ListView
        android:id="@id/android:list"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="11"
        android:stackFromBottom="false"
        android:transcriptMode="normal"
        android:choiceMode="multipleChoice">
    </ListView>

</LinearLayout>

And my ListActivity:

public class DataManager extends ListActivity {
    SimpleAdapter mresultsListView;
    //ListView resultsListView;
    @Override
    protected void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        ...
        readResults();
    }
    private void readResults(){
        ListView resultsListView = getListView();
          //resultsListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        resultsListView.setTextFilterEnabled(true);
        List <String> readContent = new ArrayList<String>();
        String str1;
        String str2;
        int i,n,j;

        File root = Environment.getExternalStorageDirectory();
        File dir  = new File (root.getAbsolutePath() + "/Viscosity_Results/Results.txt");
        IoDisk mydisk = new IoDisk();
        readContent = mydisk.readFile(dir, this);
        List <String> dataToShow = new ArrayList<String>(readContent);
        ArrayList<HashMap<String,String>> myList = new ArrayList<HashMap<String,String>>();
        HashMap<String,String> map = new HashMap<String,String>();

        //that algortihm to revert the values order
        n = readContent.size(); //size of array
        for(i=0;i<n;i++){
            str1 = readContent.get(n-1-i);
            str2 = get_data(str1);
            map.put("1", str2);
            for(j=0;j<7;j++){
                str1 = str1.substring(str1.indexOf(",")+1);
                str2 = get_data(str1);
                map.put(Integer.toString(j+2), str2);
            }
            myList.add(map);
            map = new HashMap<String,String>();
        }
        mresultsListView = new SimpleAdapter(this,myList,R.layout.listviewrows,new String[]{"1","2","3","4","5","6","7","8"},
                new int[]{R.id.sampid_cell,R.id.userid_cell,R.id.date_cell,R.id.tube_cell,R.id.temp_cell,R.id.ctte_cell,
                R.id.time_cell,R.id.visco_cell});
        resultsListView.setAdapter(mresultsListView);

    }
    @Override
    protected void onListItemClick(ListView parent, View v,int position,long id){
        super.onListItemClick(parent, v, position, id);

        Toast.makeText(getBaseContext(), "clicked", Toast.LENGTH_SHORT).show();

My app works correctly the only problem is that i want to click the row item on the listView and the check box needs to be checked automatically, i don't wanna to check just the checkbox manually, even the checkbox mustn't change their state if the user clicked it. please help me to achieve this. Regards.