how to get cell template control values

halo experts,

    below code bined cell template in datagrid. consider datagrid itemsource binded collection of 5 objects. according below code, 5 text box , 5 date picker controls generated inside datagrid. how can each controls?(5 text box values) 

<my:datagrid x:name="targetdatagrid" autogeneratecolumns="false" >      <my:datagrid.columns>          <my:datagridtemplatecolumn header="birthday">              <my:datagridtemplatecolumn.celltemplate>                  <datatemplate>                      <textblock                           text="{binding birthday,                           converter={staticresource dateconverter}}"                           fontfamily="trebuchet ms" fontsize="11"                           margin="5,4,5,4"/>                  </datatemplate>              </my:datagridtemplatecolumn.celltemplate>              <my:datagridtemplatecolumn.celleditingtemplate>                  <datatemplate>                      <datepicker                           selecteddate="{binding birthday, mode=twoway}" />                  </datatemplate>              </my:datagridtemplatecolumn.celleditingtemplate>          </my:datagridtemplatecolumn>      </my:datagrid.columns>  </my:datagrid>

hi,

    if using sl4, there useful extension methods use.

    var =  dg.getvisualdescendants().where(t => t.gettype().equals(typeof(textblock)));

    the above line textblock inside datagrid.

    if using sl3 , may need write generic method traverse through dg's visual tree , want.

        list<frameworkelement> result = new list<frameworkelement>();
        public void getchildobject<t>(frameworkelement obj) t : frameworkelement {
           
            (int = 0; < visualtreehelper.getchildrencount(obj); i++) {
                frameworkelement c = visualtreehelper.getchild(obj, i) frameworkelement;
                if (c.gettype().equals(typeof(t)))
                {
                    result.add(c);
                }
                getchildobject<t>(c);
            }
        }

best regards

Silverlight  >  Programming Silverlight with .NET – General