如何更改复选框'；在iframe中使用javascript标记文本

我在脚本管理器和更新面板中有复选框

单击aspxDevGridView中的任何一行后，我希望在javascript中更改复选框标签文本

我从aspxGridViews客户端事件调用javascript。aspx页面位于iframe中，我无法更改复选框的文本

function OnGridSelect(fldval) {
      document.getElementById("HF_Code").value = fldval[0];
      //I added one label beside checkbox to display the value and it worked
      //but unable to change the text of CB_Asset with innerHTML 
      //Tried clientID as well which does not work.
      document.getElementById('Lbl_Asset').innerHTML = fldval[2] + " Included";
      document.getElementById("CB_Asset").checked = (fldval[1] == "1");
      document.getElementById("RBL_Cost").value = fldval[2];
  }

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提前感谢您

尝试以下方法获取iframe的内部html：

var iframe = document.getElementById('iframeId');
var innerDoc = iframe.contentDocument || iframe.contentWindow.document;