本文介绍了如何$由JavaScript p $ pvent回传的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
其实这code是firfox mozila运作良好,但它不是在IE8工作
<asp:Button ID="btnSubmit" runat="server" Text="Submit" CssClass="btnPrimary" OnClientClick="return doSubmit('this');"
OnClick="btnSubmit_Click" />
<script type="text/javascript">
function doSubmit()
{
var ansLength = oDOM.body.innerText.trim().length;
if (ansLength == 0 && smielyPresent == -1)
{
alert("you cannot submit blank answer");
return false;
}
}
</script>
protected void btnSubmit_Click(object sender, EventArgs e)
{
// i am doing some stuff
}
在这里,我想prevent回发时 answerlength == 0;
但是当答案长度== 0
则警告警报(你无法提交空白答案)
消息,回发到服务器的IO要prevent它,我该怎么办?
here i want to prevent postback when answerlength == 0 ;
but when answer length ==0
then it alert alert("u can't submit blank answer")
message and postback to server io want to prevent it how i do ?
推荐答案
它不工作,因为你在你的JavaScript有一个脚本错误。
It's not working since you have a script error in your javascript.
<script type="text/javascript">
function doSubmit()
{
//I've removed the first equal sign
var ansLength = oDOM.body.innerText.trim().length;
if (ansLength == 0 && smielyPresent == -1) //typo on smielyPresent ?
{
alert("u can't submit blank answer")
return false;
}
}
</script>
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