<script language="javascript">
function storemarker() {
var txtTitle = document.getElementById('txtTitle').value;
var sendInfo = { txtTitle: txtTitle
};
var req;
if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
}
else {
req = new ActiveXObject("Microsoft.XMLHTTP"); // IE
}
req.onreadystatechange = function () {
if (req.readyState == 4 && req.status == 200) {
var mydata = JSON.parse(req.responseText);
}
}
req.open("POST", "Home.aspx/ButtonClick", true);
req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
req.send("txtTitle=" + txtTitle );
}
<input type="submit" id="button" class="buttom" value="Add Road" onclick="storemarker()"/>
[WebMethod]
public static string ButtonClick(string txtTitle)
{
//return title;
return "alert('The Button was Clicked');";
}
我试图将此作为一个小例子来实现。我刚刚查看了我无法看到错误的代码。
任何人都可以告诉我这段代码有什么问题吗?感谢
答案 0 :(得分:2)
您必须取消提交按钮的默认行为,即提交表单,或使用普通按钮而不是提交按钮。
现在,您的代码确实向服务器发送请求,但随后也提交了表单,因此页面重新加载&#34;。
其中一种可行:
<input type="submit" id="button" class="buttom" value="Add Road" onclick="storemarker(); return false;"/>
或者:
<button type="button" id="button" class="buttom" onclick="storemarker()">Add Road</button>