我创建了一个网页“Default.aspx”,其中包含以下字段: 名字、姓氏、帐户标题、标题(单选按钮列表)、帐户编号和帐户格式 在“Default.aspx”页面下,我还使用了一个单选按钮列表,其值为"is"和“否”。如果我选择"is",则以下字段的可见性应设置为 false:
名字、姓氏
如果我选择“否”,则以下字段可见性应设置为 true:
帐户标题、帐号
为此,我在“Default.aspx”中编写了以下 Java 脚本代码
function EnableDisableTaxID() {
if (document.getElementById("<%=rdOpeningSubAccount.ClientID %>") != null) {
var openSubAccountList = document.getElementById('<%= rdOpeningSubAccount.ClientID %>');
var fbo1RadioList = document.getElementById('<%=fbo1RadioButtonList.ClientID %>').value;
var isOpenSubAccount;
if (openSubAccountList != null) {
var openSubAccount = openSubAccountList.getElementsByTagName("input");
for (var i = 0; i < openSubAccount.length; i++) {
if (openSubAccount[i].checked) {
isOpenSubAccount = openSubAccount[i].value;
alert("Print" + isOpenSubAccount);
}
}
}
alert(typeof(isOpenSubAccount));
if (isOpenSubAccount == 'true') {
FirstName.visible = true;
LastName.visible = false;
AccountTitling.visible = true;
lblFirstName.visible=false;
lblLastName.visible=false;
}
else if (isOpenSubAccount == 'false') {
AccountTitling.visible = true;
AccountNumber.visible = false;
lblAccountTitling.visible = true;
lblAccountNumber.visible = false;
}
}
}
但是,我从单选按钮列表中获取所需的值,但是,当我去检查单选按钮列表的选定值是否为 true 时,上面的代码不起作用。我不知道我错过了什么。我知道直接使用下面的代码是行不通的:
if (isOpenSubAccount == 'true') {
FirstName.visible = true;
LastName.visible = false;
AccountTitling.visible = true;
lblFirstName.visible=false;
lblLastName.visible=false;
}
请帮忙,因为我被困在这里......
最佳答案
对于可见= false;
document.getElementById('FirstName').style.visibility="hidden";
对于可见= true;
document.getElementById('FirstName').style.visibility="visible";
启用:
document.getElementById('FirstName').disabled = false;
要禁用:
document.getElementById('FirstName').disabled = true;
关于c# - 如何在 Webform 中使用 JavaScript 启用禁用字段,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/12708116/