function SelectUnit() {
  OpenDialogBox(epoint.url.getAbsoluteUrl("PK_UserSelect.aspx"), '', "选择人员", AfterOpen, 800, 800);
 }

function AfterOpen(rtnStr) {
  var json = rtnStr;
  $("[id$='txtName']").val(json.Name);
  $("[id$='User']").val(json.RowGuid);
  $("[name=rbn_list]").eq(1).prop("checked", "true");
  if (json.Sex == 0) {
  $("[id$='txtSex']").val("男");
  }
  else {
  $("[id$='txtSex']").val("女");
  }
  $("[id$='txtDanWeiName']").val(json.DanWeiName);
  $("[id$='txtIdentityNum']").val(json.IdentityNum);
 }

<epoint:TemplateColumn HeaderText="选择">
  <ItemStyle HorizontalAlign="Center" />
  <ItemTemplate>
   <input type="radio" id="sel" onclick="ReturnDJH('<%#DataBinder.Eval(Container.DataItem,"RowGuid")%> ','<%#DataBinder.Eval(Container.DataItem,"Name")%> ','<%#DataBinder.Eval(Container.DataItem,"Sex")%> ','<%#DataBinder.Eval(Container.DataItem,"DanWeiName")%> ','<%#DataBinder.Eval(Container.DataItem,"IdentityNum")%> ')" value="确认选择" />
  </ItemTemplate>
  </epoint:TemplateColumn>
 function ReturnDJH(RowGuid,Name,Sex,DanWeiName,IdentityNum) {
  var json={
  'RowGuid':RowGuid,'Name':Name,'Sex':Sex,'DanWeiName':DanWeiName,'IdentityNum':IdentityNum
  };
  CloseParentDialogBox(json);//关闭页面传值
 }