jQuery.ajax()调用asp.net后台方法
2017-08-17 09:50
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通过firebug能很清楚地看到json返回的数据格式,所以在取数据的时候要data.d。
2、带参数的方法调用
C#后台代码:
[WebMethod]
public static string sayHi(string address, string name)
{
return "Hi," + address + " " + name;
}
html代码:
<div>
<asp:Button ID="btnClick" runat="server" Text="click me" />
address:<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox>
family name:<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<br />
<span id="msg"></span>
</div>
jQuery代码:
<script type="text/javascript">
$(document).ready(
function() {
$("#btnClick").bind("click", function() {
var add = $("#txtAddress").val();
var txtname = $("#txtName").val();
$.ajax({
type: "post",
url: "ajaxHandler.aspx/sayHi",
data: "{'address':'" + add + "','name':'" + txtname + "'}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(data) {
$("#msg").css("color", "#0000FF").html(data.d);
},
error: function(err) {
$("#msg").css("color", "#FF0000").html("access faield:" + err);
}
});
return false;
});
});
</script>
3、返回List集合方法的调用
C#后台代码:
[WebMethod]
public static List<string> sayHi(string address, string name)
{
List<string> list = new List<string>();
for (int i = 0; i < 10; i++)
{
list.Add("Hi:" + i.ToString());
}
list.Add("Hi:" + address + " " + name);
return list;
}html代码:
<div>
<asp:Button ID="btnClick" runat="server" Text="click me" />
address:<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox>
family name:<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<br />
<ul id="msg">
</ul>
</div>jQuery代码:
<script type="text/javascript">
$(document).ready(
function() {
$("#btnClick").bind("click", function() {
var add = $("#txtAddress").val();
var txtname = $("#txtName").val();
$.ajax({
type: "post",
url: "ajaxHandler.aspx/sayHi",
data: "{'address':'" + add + "','name':'" + txtname + "'}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(data) {
$("#msg").html("");
$(data.d).each(function() {
$("#msg").append("<li>" + this + "</li>");
});
$("#msg").css("color", "#0000FF");
},
error: function(err) {
$("#msg").css("color", "#FF0000").html("access faield:" + err);
}
});
return false;
});
});
</script>
4、返回[b]SortedList<tkey,tvalue>[/b]方法的调用
C#后台代码:
html代码:
<div>
<asp:Button ID="btnClick" runat="server" Text="click me" />
address:<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox>
family name:<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<br />
<ul id="msg">
</ul>
</div>
jQuery代码:
<script type="text/javascript">
$(document).ready(
function() {
$("#btnClick").bind("click", function() {
var add = $("#txtAddress").val();
var txtname = $("#txtName").val();
$.ajax({
type: "post",
url: "ajaxHandler.aspx/sayHi",
data: "{'address':'" + add + "','name':'" + txtname + "'}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(data) {
$("#msg").html("");
//这里只取部分键、值显示
$("#msg").append("<li>" + data.d["0_key"] + "</li>");
$("#msg").append("<li>" + data.d["1_key"] + "</li>");
$("#msg").append("<li>" + data.d["2_key"] + "</li>");
$("#msg").append("<li>" + data.d["_key"] + "</li>");
$("#msg").css("color", "#0000FF");
},
error: function(err) {
$("#msg").css("color", "#FF0000").html("access faield:" + err);
}
});
return false;
});
});
</script>
5、操作xml
Xml文件代码:
<div>
<asp:Button ID="btnClick" runat="server" Text="click me" />
address:<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox>
family name:<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<br />
<ul id="msg">
</ul>
</div>jQuery代码:
<script type="text/javascript">
$(document).ready(
function() {
$("#btnClick").bind("click", function() {
$.ajax({
url: "books.xml",
dataType: "xml",
success: function(xmlData) {
$("#msg").html("");
$(xmlData).find("books>book").each(function() {
$("#msg").append("====new book====");
$("#msg").append("<li>name:" + $(this).find("name").text() + "</li>");
$("#msg").append("<li>author:" + $(this).find("author").text() + "</li>");
$("#msg").append("<li>wordCount:" + $(this).find("wordCount").text() + "</li>");
$("#msg").append("<li>price:" + $(this).find("price").text() + "</li>");
});
$("#msg").css("color", "#0000FF");
},
error: function(err) {
$("#msg").css("color", "#FF0000").html("access faield:" + err);
}
});
return false;
});
});
</script>
2、带参数的方法调用
C#后台代码:
[WebMethod]
public static string sayHi(string address, string name)
{
return "Hi," + address + " " + name;
}
html代码:
<div>
<asp:Button ID="btnClick" runat="server" Text="click me" />
address:<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox>
family name:<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<br />
<span id="msg"></span>
</div>
jQuery代码:
<script type="text/javascript">
$(document).ready(
function() {
$("#btnClick").bind("click", function() {
var add = $("#txtAddress").val();
var txtname = $("#txtName").val();
$.ajax({
type: "post",
url: "ajaxHandler.aspx/sayHi",
data: "{'address':'" + add + "','name':'" + txtname + "'}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(data) {
$("#msg").css("color", "#0000FF").html(data.d);
},
error: function(err) {
$("#msg").css("color", "#FF0000").html("access faield:" + err);
}
});
return false;
});
});
</script>
3、返回List集合方法的调用
C#后台代码:
[WebMethod]
public static List<string> sayHi(string address, string name)
{
List<string> list = new List<string>();
for (int i = 0; i < 10; i++)
{
list.Add("Hi:" + i.ToString());
}
list.Add("Hi:" + address + " " + name);
return list;
}html代码:
<div>
<asp:Button ID="btnClick" runat="server" Text="click me" />
address:<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox>
family name:<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<br />
<ul id="msg">
</ul>
</div>jQuery代码:
<script type="text/javascript">
$(document).ready(
function() {
$("#btnClick").bind("click", function() {
var add = $("#txtAddress").val();
var txtname = $("#txtName").val();
$.ajax({
type: "post",
url: "ajaxHandler.aspx/sayHi",
data: "{'address':'" + add + "','name':'" + txtname + "'}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(data) {
$("#msg").html("");
$(data.d).each(function() {
$("#msg").append("<li>" + this + "</li>");
});
$("#msg").css("color", "#0000FF");
},
error: function(err) {
$("#msg").css("color", "#FF0000").html("access faield:" + err);
}
});
return false;
});
});
</script>
4、返回[b]SortedList<tkey,tvalue>[/b]方法的调用
C#后台代码:
[WebMethod] public static SortedList<string, string> sayHi(string address, string name) { SortedList<string, string> sl = new SortedList<string, string>(); for (int i = 0; i < 10; i++) { sl.Add(i.ToString() + "_key", i.ToString() + "_value"); } sl.Add("_key", "_value " + address + " " + name); return sl; }
html代码:
<div>
<asp:Button ID="btnClick" runat="server" Text="click me" />
address:<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox>
family name:<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<br />
<ul id="msg">
</ul>
</div>
jQuery代码:
<script type="text/javascript">
$(document).ready(
function() {
$("#btnClick").bind("click", function() {
var add = $("#txtAddress").val();
var txtname = $("#txtName").val();
$.ajax({
type: "post",
url: "ajaxHandler.aspx/sayHi",
data: "{'address':'" + add + "','name':'" + txtname + "'}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(data) {
$("#msg").html("");
//这里只取部分键、值显示
$("#msg").append("<li>" + data.d["0_key"] + "</li>");
$("#msg").append("<li>" + data.d["1_key"] + "</li>");
$("#msg").append("<li>" + data.d["2_key"] + "</li>");
$("#msg").append("<li>" + data.d["_key"] + "</li>");
$("#msg").css("color", "#0000FF");
},
error: function(err) {
$("#msg").css("color", "#FF0000").html("access faield:" + err);
}
});
return false;
});
});
</script>
5、操作xml
Xml文件代码:
<?xml version="1.0" encoding="utf-8" ?> <books> <book> <name>ASP.NET 3.5高级程序设计(第2版)</name> <author>麦克唐纳博思工作室</author> <wordCount>2034000</wordCount> <price>76</price> </book> <book> <name>ASP.NET 3.5入门经典</name> <author>(荷兰)史潘加斯(Spaanjaars,I.)</author> <wordCount>1046000</wordCount> <price>78.5</price> </book> <book> <name>C#高级编程(第5版)上下卷</name> <author>(美)内格尔(Nagel.C) 等著</author> <wordCount>24770000</wordCount> <price>124</price> </book> <book> <name>ASP.NET AJAX实战</name> <author>(美)麦克卢尔,(美)格拉维奇,(美)欧尔 等著</author> <wordCount>511000</wordCount> <price>44</price> </book> <book> <name>ASP.NET程序开发范例宝典(C#)(第2版)</name> <author>张跃延,苏宇,贯伟红</author> <wordCount>1419000</wordCount> <price>71.2</price> </book> </books>html代码:
<div>
<asp:Button ID="btnClick" runat="server" Text="click me" />
address:<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox>
family name:<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<br />
<ul id="msg">
</ul>
</div>jQuery代码:
<script type="text/javascript">
$(document).ready(
function() {
$("#btnClick").bind("click", function() {
$.ajax({
url: "books.xml",
dataType: "xml",
success: function(xmlData) {
$("#msg").html("");
$(xmlData).find("books>book").each(function() {
$("#msg").append("====new book====");
$("#msg").append("<li>name:" + $(this).find("name").text() + "</li>");
$("#msg").append("<li>author:" + $(this).find("author").text() + "</li>");
$("#msg").append("<li>wordCount:" + $(this).find("wordCount").text() + "</li>");
$("#msg").append("<li>price:" + $(this).find("price").text() + "</li>");
});
$("#msg").css("color", "#0000FF");
},
error: function(err) {
$("#msg").css("color", "#FF0000").html("access faield:" + err);
}
});
return false;
});
});
</script>
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