OnClientClick Javascript:确认是否在文本框中获得价值?

问题描述

所以我似乎找不到任何方法.我希望能够在文本(确认)框中使用BuyOutPrice的值，但似乎无法使其正常工作.

So I can't seem to find anywhere how to do this. I want to be able to use the value of BuyOutPrice in the text(confirm) box but can't seem to make it work.

更具体地说，我应该怎么写这部分:(您确定要以$ + BuyOutPrice +'?买断)

More specificly, how am I supposed to write this part:('Are you sure you want to buy-out for $' + BuyOutPrice + '?')

这只是我根据其他编程语言经验得出的最接近的猜测，但在JavaScript中似乎无效.

This was just my closest guess from experience in other programming languages but it appears invalid in JavaScript.

var BuyOutPrice = '<%= Content.ComparisonPrice %>';


<asp:ImageButton ID="BuyNowButton" OnClick="BuyNowButton_Click" Style="vertical-align:top;" ImageUrl="Images/btn_buyNow.png" runat="server" OnClientClick="javascript:return confirm('Are you sure you want to buy-out for $' + BuyOutPrice + '?'); BuyNow(); return ValidateBuyNow();" />

推荐答案

如果ComparisonPrice是TextBox，请尝试以下操作:

If ComparisonPrice is a TextBox so try this:

<asp:TextBox ID="ComparisonPrice" runat="server"></asp:TextBox>
<asp:ImageButton ID="BuyNowButton" Style="vertical-align:top;" ImageUrl="Images/btn_buyNow.png" runat="server" OnClientClick="javascript:return confirm('Are you sure you want to buy-out for' + momo() + '?'); BuyNow(); return ValidateBuyNow();" />

和JavaScript:

And JavaScript:

<script>
    function momo() {
        return document.getElementById('<%= ComparisonPrice.ClientID %>').value
    }
</script>

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