ASP.NET/JAVASCRIPT从RadioButton值禁用下拉列表（客户端）

目前我有三个单选按钮：

<asp:RadioButton ID="rbShowAll" runat="server" CssClass="radio-inline" GroupName="grpReadStatus" onchange="disableDDL()"/>
<asp:RadioButton ID="rbIssuedTo" runat="server" CssClass="radio-inline" GroupName="grpReadStatus" onchange="disableDDL()"/>
<asp:RadioButton ID="rbReceivedFrom" runat="server" CssClass="radio-inline" GroupName="grpReadStatus" onchange="disableDDL()"/>

---

但它不起作用。有人能就此提出建议吗？非常感谢您的帮助。谢谢

我已经为您创建了一个有效的代码段，有很多拼写错误，这就是为什么它不起作用，我已经全部更正：）看一看

函数disableDDL（）{
document.getElementById（“ddlBuyer”）.disabled=false；
document.getElementById（“ddlSeller”）.disabled=false；
if（document.getElementById（“rbShowAll”）.选中）{
//警报（“rbShowAll”）；
document.getElementById（“ddlBuyer”）.disabled=true；
document.getElementById（“ddlSeller”）.disabled=true；
}else if（document.getElementById（“rbIssuedTo”）.选中）{
//警报（“rbIssuedTo”）；
document.getElementById（“ddlSeller”）.disabled=true；
}else if（document.getElementById（“rbReceivedFrom”）。选中）{
//警报（“rbReceivedFrom”）；
document.getElementById（“ddlBuyer”）.disabled=true；
}//否则{
//警报（“其他”）；
//}
}

全部显示
发给
收到
选择买家
买方1
选择卖家
卖方1

asp:RadioButton被呈现为span元素，其中包含单选按钮，因此您放置的事件将被分配给span元素，并且不起作用。 而是直接使用：

---

相应地修改html

<input type="radio" id="rbShowAll" class="radio-inline" name="grpReadStatus" onchange="javascript:disableDDL()">Show all
<input type="radio" id="rbIssuedTo" class="radio-inline" name="grpReadStatus" onchange="javascript:disableDDL()">Issued to
<input type="radio" id="rbReceivedFrom" class="radio-inline" name="grpReadStatus" onchange="javascript:disableDDL()">Recieved from

<select id="ddlBuyer">
  <option>Select Buyer</option>
  <option>Buyer 1</option>
</select>

<select id="ddlSeller">
  <option>Select Seller</option>
  <option>Seller 1</option>
</select>

    function disableDDL() {
        if (document.getElementById("rbShowAll").checked) {
            document.getElementById("ddlBuyer").disabled = true;
            document.getElementById("ddlSeller").disabled = true;
        }
        else if (document.getElementById("rbIssuedTo").checked) {
            document.getElementById("ddlSeller").disabled = true;
            document.getElementById("ddlBuyer").disabled = false;
     }
else if (document.getElementById("rbReceivedFrom").checked) {
            document.getElementById("ddlSeller").disabled = false;
            document.getElementById("ddlBuyer").disabled = true;
}

<input type="radio" id="rbShowAll" class="radio-inline" name="grpReadStatus" onchange="javascript:disableDDL()">Show all
<input type="radio" id="rbIssuedTo" class="radio-inline" name="grpReadStatus" onchange="javascript:disableDDL()">Issued to
<input type="radio" id="rbReceivedFrom" class="radio-inline" name="grpReadStatus" onchange="javascript:disableDDL()">Recieved from

<select id="ddlBuyer">
  <option>Select Buyer</option>
  <option>Buyer 1</option>
</select>

<select id="ddlSeller">
  <option>Select Seller</option>
  <option>Seller 1</option>
</select>

    function disableDDL() {
        if (document.getElementById("rbShowAll").checked) {
            document.getElementById("ddlBuyer").disabled = true;
            document.getElementById("ddlSeller").disabled = true;
        }
        else if (document.getElementById("rbIssuedTo").checked) {
            document.getElementById("ddlSeller").disabled = true;
            document.getElementById("ddlBuyer").disabled = false;
     }
else if (document.getElementById("rbReceivedFrom").checked) {
            document.getElementById("ddlSeller").disabled = false;
            document.getElementById("ddlBuyer").disabled = true;
}