Question

我正在尝试使用此脚本隐藏“是/否”之后的问题。换句话说，我想在没有点击时隐藏以下问题的问题是/否。

感谢。

<script>
    function ChangeDropdowns() {
        if ("Delivery_y:checked") {
            document.getElementById('BuyProduct_H').style.display = 'block';
        } else if ("Delivery_n:checked") {
            document.getElementById('BuyProduct_H').style.display = 'none';
        }
    }
</script>

这是包含是/否问题的表格。

<table id="YesNo" style="width:100%;">
        <tr>
            <td class="auto-style2" colspan="3">*&nbsp; Have you recently bought any        electronic products from AlGhanim electronics that required delivery/ Installation Service?    </td>
        </tr>
        <tr>
            <td class="auto-style28">&nbsp;</td>
            <td class="auto-style23">
     <input type="radio" name="Delivery" id ="Delivery_y"     onclick="displayResult(this.value)" value="Yes" >Yes</td>
            <td>(Continue)</td>
        </tr>
        <tr>
            <td class="auto-style28">&nbsp;</td>
            <td class="auto-style23">
   <input type="radio" name="Delivery" id ="Delivery_n"     onclick="displayResult(this.value)" value="No">No</td>
            <td>(Terminate)</td>
        </tr>
    </table>

这是我在第一个问题回答“否”时要隐藏的表格：

<table name="BuyProduct" id ="BuyProduct_H" style="width:100%;">
        <tr>
            <td class="auto-style2" colspan="3">1-&nbsp;&nbsp;&nbsp;&nbsp; What were     the products that you bought?          </tr>
        <tr>
            <td class="auto-style28">&nbsp;</td>
            <td colspan="2">
    <asp:CheckBox ID="Button11" Text="a. Air Conditioning"  runat="server" /> </td>
        </tr>
        <tr>
            <td class="auto-style28">&nbsp;</td>
            <td colspan="2">
    <asp:CheckBox ID="Button12" Text="b. TV Radio (TV, Home Theatre, etc.)"     runat="server" /></td>
        </tr>
        <tr>
            <td class="auto-style28">&nbsp;</td>
            <td colspan="2">
    <asp:CheckBox ID="Button13" Text="c. Refrigeration" runat="server" /> </td>
        </tr>
        <tr>
            <td class="auto-style28">&nbsp;</td>
            <td colspan="2">
    <asp:CheckBox ID="Button14" Text="d. Laundry (Washer, Dryer, etc)" runat="server"     /> </td>
        </tr>
        <tr>
            <td class="auto-style28">&nbsp;</td>
            <td colspan="2">
    <asp:CheckBox ID="Button15" Text="e. Dishwasher" runat="server" /></td>
        </tr>
        <tr>
            <td class="auto-style28">&nbsp;</td>
            <td colspan="2">
    <asp:CheckBox ID="Button16" Text="f. Water Treatment (Water Dispencer)"      runat="server" /> </td>
        </tr>
        <tr>
            <td class="auto-style28">&nbsp;</td>
            <td colspan="2">
    <asp:CheckBox ID="Button17" Text="g. Small Housewares (Microwave, Kitchen     appliances, etc.)" runat="server" /> 
                <br />
    <asp:CheckBox ID="Button18" Text="h. Others Please Specify" runat="server" /> </td>
        </tr>
        <tr>
            <td class="auto-style28">&nbsp;</td>
            <td class="auto-style51"></td>
            <td>
    <asp:TextBox ID="TextBox26" runat="server"></asp:TextBox>
            </td>
            <td>
                &nbsp;</td>
        </tr>
        <tr>
            <td class="auto-style28">&nbsp;</td>
            <td colspan="2">
                &nbsp;</td>
        </tr>
        </table>

Answer 1

"show"和"hide"不是display的有效值。请改为分别尝试"block"（或"inline-block"）和"none"。

请点击此处查看有效值：http://www.w3schools.com/jsref/prop_style_display.asp

此外，您需要调用ChangeDropdowns()功能才能使其正常工作。

Answer 2

除了@mayabelle在答案中指出的内容（隐藏和 show 应分别由style.display = 'none'和style.display = 'block'取代），您在if语句if ("Delivery_y:checked")中的验证将无效。相反，您可以通过以下方式检查是否在javascript中检查了元素：

if (document.getElementById('Delivery_y').checked)

或者，您可以在jQuery中执行此操作：

if ($('Delivery_y').is(':checked'))

Answer 3

我将Raul Rene和mayabelle应用于我的剧本：

这是以前的剧本：

<script>
function ChangeDropdowns() {
    if ("Delivery_y:checked") {
        document.getElementById('BuyProduct_H').style.display = 'block';
    } else if ("Delivery_n:checked") {
        document.getElementById('BuyProduct_H').style.display = 'none';
    }
}
</script>

这是剧本之后：

<script>
    function ChangeDropdowns() {
        if (document.getElementById('Delivery_y').checked) {
            document.getElementById('BuyProduct_H').style.display = 'block';
        } else if (document.getElementById('Delivery_n').checked) {
            document.getElementById('BuyProduct_H').style.display = 'none';
        }
    }
</script>

我更改了是/否表：

在：

input type="radio" name="Delivery" id ="Delivery_y"         onclick="displayResult(this.value)" value="Yes" >Yes</td>
        <td>(Continue)</td>
    </tr>
    <tr>
        <td class="auto-style28">&nbsp;</td>
        <td class="auto-style23">
   <input type="radio" name="Delivery" id ="Delivery_n"         onclick="displayResult(this.value)" value="No">No</td>
        <td>(Terminate)</td>
    </tr>

后：

<input type="radio" name="Delivery" id ="Delivery_y"     onclick="displayResult(this.value)" onchange="ChangeDropdowns()" value="Yes" >Yes</td>
            <td>(Continue)</td>
        </tr>
        <tr>
            <td class="auto-style28">&nbsp;</td>
            <td class="auto-style23">
       <input type="radio" name="Delivery" id ="Delivery_n"      onclick="displayResult(this.value)" onchange="ChangeDropdowns()" value="No">No</td>
            <td>(Terminate)</td>
        </tr>

工作得很好。

谢谢大家。

如何使用HTML中的Javascript使用单选按钮隐藏表格？

3 个答案: