JavaScript Readonly问题

Question

我在使用JavaScript只读字段时遇到问题.我有一个文本框,我正在阅读.

 if(val == true)
{    
    ddlCnt.value=objRec.iCntId;
    tAdd1.value=objRec.sAddress1;        
    tAdd2.value=objRec.sAddress2;        
    tCity.value=objRec.sCity;
    tState.value=objRec.sState;
    tZip.value=objRec.sZip;

    //tAdd1.disabled = tAdd2.disabled = tCity.disabled = tState.disabled = tZip.disabled = ddlCnt.disabled = true;
    //tAdd1.disabled = tAdd2.disabled = tCity.disabled = tState.disabled = tZip.disabled = ddlCnt.disabled = true;
    tAdd1.setAttribute("readonly", true);
    tAdd2.setAttribute("readonly", true);
    tCity.setAttribute("readonly", true);
    tState.setAttribute("readonly", true);
    tZip.setAttribute("readonly", true);
}

它工作正常.现在停用我使用的这个只读属性

else
{    
    tAdd1.value = tAdd2.value = tCity.value = tState.value = tZip.value = "";        
    //tAdd1.disabled = tAdd2.disabled = tCity.disabled = tState.disabled = tZip.disabled = ddlCnt.disabled = false;
    ddlCnt.value="-1";
    vsRec.innerHTML='';     
    tAdd1.setAttribute("readonly", false);
    tAdd2.setAttribute("readonly", false);
    tCity.setAttribute("readonly", false);
    tState.setAttribute("readonly", false);
    tZip.setAttribute("readonly", false);

    //vsRec.style.visibility='hidden';             
}

但它根本不起作用.任何人都可以帮我解决这个问题或任何可以帮助我很多的建议或提示(以及为什么这不起作用？).

Answer 1

您需要使用removeAttribute删除该属性.

tAdd1.removeAttribute("readonly");
tAdd2.removeAttribute("readonly");
tCity.removeAttribute("readonly");
tState.removeAttribute("readonly");
tZip.removeAttribute("readonly");