我已经检查了所有类似的问题并尝试了不同的解决方案,但根本没有运气。
我有一个非常简单的div来获取姓名。我想要做的是,如果输入框不为空,则发布到另一页(使用jquery),删除或隐藏div1并显示div2以提出问题(div 2被隐藏)。
出于某种原因,当我点击提交按钮时,姓名和姓氏会发布到其他页面并存储在数据库中,但在警报之后,div1重新出现并且div 2消失。请问有人帮我一把吗?
非常感谢!
Jquery代码:
<script>
function saveDetailsToDB()
{
var name = document.getElementById('name').value;
var surname = document.getElementById('surname').value;
if (name === "" && surname === "")
{
alert("Please, enter your details!");
$("#UQ").css( "display", "none");
}
else if(name !== "" && surname === "")
{
alert("Please, enter your Surname");
$("#UQ").css( "display", "none");
}
else if(name === "" && surname !== "")
{
alert("Please, enter your Name");
$("#UQ").css( "display", "none");
}
else
{
$.post("saveDetails.php",{ name: name,surname: surname });
$("#detailsDiv").hide();
$("#UQ").show();
alert('You have been successfully registered!');
}
}
</script>
HTML:
<div id = "detailsDiv">
<form>
<b><label>Name:</label></b><br>
<input type = "text" id = "name"><br><br>
<b><label>Surname:</label></b><br>
<input type = "text" id = "surname"><br><br>
<button onclick="saveDetailsToDB();">Send</button>
</form>
</div>
<div id = "UQ">
<b><label>Please enter your question.</label></b><br><br>
<form>
<textarea id = "question" rows="4" cols="40"></textarea><br><br>
<button onclick="saveQuestionToDB()">Save</button>
</form>
</div>
答案 0 :(得分:6)
问题是因为您没有阻止按钮点击的默认操作,因此页面重新加载会使内容看起来像重新出现。试试这个:
<button onclick="saveDetailsToDB(); return false;">Send</button>
或者更好的是,从HTML中删除过时的onclick
属性并使用JavaScript附加事件:
<button class="btn-save">Send</button>
$(function() {
$('.btn-save').click(function(e) {
e.preventDefault();
var name = $('#name').val();
var surname = $('#surname').val();
if (name === "" && surname === "") {
alert("Please, enter your details!");
$("#UQ").hide();
}
else if(name !== "" && surname === "") {
alert("Please, enter your Surname");
$("#UQ").hide();
}
else if(name === "" && surname !== "") {
alert("Please, enter your Name");
$("#UQ").hide();
}
else {
$.post("saveDetails.php", {
name: name,
surname: surname
});
$("#detailsDiv").hide();
$("#UQ").show();
alert('You have been successfully registered!');
}
});
});