使用 jQuery Ajax 调用 Web 方法
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Call a web method using jQuery Ajax
提问by tishantha
I want to create an Autocompletefield for a search option. I have tried with following code.
我想Autocomplete为搜索选项创建一个字段。我试过下面的代码。
But the web method doesn't firewhen the Autocompletefunction is execution.
What will be the reason ?
但是当函数执行时，web 方法不会触发Autocomplete。原因是什么？
Here is the jQuery function:
这是 jQuery 函数：
<script type="text/javascript">
$(function () { $("#<%=tags.ClientID %>").autocomplete({
source:function (request, response) {
$.ajax ({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "~/Services/AutoComplete.asmx/GetFarmersByName",
data: "{ 'name' : '" + $("#<%=tags.ClientID %>").val() + "'}",
dataType: "json",
async: true,
dataFilter: function (data) { return data; },
success: function (data) {
response($(data.d, function (item) {
return {
value: item.AdrNm
}
}));
},
error: function (XMLHttpRequest, textStatus, errorThrown) {
alert(textStatus);
}
});
}
});
});
</script>
Here is the web method
这是网络方法
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public List<FMISPersonalDataViewByName_Result> GetFarmersByName(string name)
{
this._personalData = new personalData();
int cky = 45;
CdMa cdMas = new CdMa();
cdMas = this._personalData.getcdMasByConcdCd2(cky, "AdrPreFix", true);
int prefixKy = cdMas.CdKy;
List<FMISPersonalDataViewByName_Result> list = new List<FMISPersonalDataViewByName_Result>();
list = this._personalData.GetPersonalDataByName(prefixKy, cky, name);
return list;
}
回答by Nilesh Thakkar
Make sure you hit the webservice function by having breakpoint on your service function. Please change your script to below:
通过在您的服务功能上设置断点，确保您命中了 webservice 功能。请将您的脚本更改为以下内容：
<script type="text/javascript">
$(function () {
$("#<%=tags.ClientID %>").autocomplete
({
source:
function (request, response) {
$.ajax
({
url: " <%=ResolveUrl("~/Services/AutoComplete.asmx/GetFarmersByName") %>",
data: "{ 'name' : '" + $("#<%=tags.ClientID %>").val() + "'}",
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
async: true,
dataFilter: function (data) { return data; },
success: function (data)
{
response($(data.d, function (item)
{
return
{
value: item.AdrNm
}
}));
},
error: function (XMLHttpRequest, textStatus, errorThrown) {
alert(textStatus);
}
});
}
});
});
</script>
回答by user441222
Above your service class add [System.Web.Script.Services.ScriptService]
在您的服务类别上方添加 [System.Web.Script.Services.ScriptService]
Or you can do this in an asp.net page!
或者您可以在 asp.net 页面中执行此操作！
add the static keyword and change the webservice to ASP.NET page!
添加 static 关键字并将 webservice 更改为 ASP.NET 页面！
public static string GetFarmersByName(string name)
For example:
例如：
A.aspx:
A.aspx：
$.ajax({
type: "POST",
url: "A.aspx/GetSN",
data: {},
contentType: "application/json;charset=utf-8",
dataType: "json",
async:false,
success: function (json) {
var msg = JSON.parse(json.d);
sn = msg;
},
failure: function () {
alert("Sorry,there is a error!");
}
});
Then in your A.aspx.cs type in:
然后在你的 A.aspx.cs 中输入：
[WebMethod]
public static string GetSN()
{
Random RN = new Random();
string year = DateTime.Now.ToString("yy").ToString();
string MonAndDate = DateTime.Now.ToString("MMdd").ToString();
string Hour = DateTime.Now.ToString("HHMMss").ToString() + DateTime.Now.Millisecond.ToString() + RN.Next(100, 900).ToString();
string SerialNumber = year + MonAndDate + Hour;
return JsonConvert.SerializeObject(SerialNumber);
}
回答by Satinder singh
Assuming tagsas your textbox, set data as { 'name': '" + request.term + "'}
假设tags作为您的文本框，将数据设置为{ 'name': '" + request.term + "'}
$("#<%=tags.ClientID %>").autocomplete({
source: function (request, response) {
$.ajax({
url: "Services/AutoComplete.asmx/GetFarmersByName",
data: "{ 'name': '" + request.term + "'}",
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
success: function (data) {
response($.map(data.d, function (item) {
return {
label: item.split('-')[0],
val: item.split('-')[1]
}
}))
},
error: function (response) {
alert(response.responseText);
},
failure: function (response) {
alert(response.responseText);
},
});
},
minLength: 0,
focus: function () {
// prevent value inserted on focus
return false;
},
});
debug on method GetFarmersByName,
调试方法 GetFarmersByName，
NOTE:Check have you uncomment [System.Web.Script.Services.ScriptService]on .asmx page.
注意：检查您是否[System.Web.Script.Services.ScriptService]在 .asmx 页面上取消注释。
回答by user441222
Post again!!!
再发一次！！！
Test.aspx:
测试.aspx：
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="jquery-1.9.0.min.js"></script>
<script type="text/javascript">
$(function(){
$("#Button1").bind("click",function(){
$.ajax({
type: "POST",
url: "Test.asmx/GetFarmersByName",
data:"{'aaa':'zhangsan'}",
contentType: "application/json;charset=utf-8",
dataType: "json",
async: false,
success: function (json) {
},
failure: function () {
alert("Sorry,there is a error!");
}
});
})
})
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="Button1" type="button" value="button" />
</div>
</form>
</body>
</html>
Test.asmx:
测试.asmx：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Script.Services;
using System.Web.Services;
namespace TestWebForm
{
/// <summary>
/// Summary description for Test
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
[System.Web.Script.Services.ScriptService]
public class Test : System.Web.Services.WebService
{
[WebMethod]
[ScriptMethod(UseHttpGet = false, ResponseFormat = ResponseFormat.Json)]
public List<string> GetFarmersByName(string aaa)
{
List<string> list = new List<string>();
list.Add(aaa);
return list;
}
}
}
回答by moss
Paste this method inside code behind file where you are calling this method. Change url to url: "Test.aspx/GetFarmersByName" and then test it. Its much clean code rather then Web Service.
将此方法粘贴到调用此方法的文件后面的代码中。将 url 更改为 url: "Test.aspx/GetFarmersByName" 然后进行测试。它的代码非常干净，而不是 Web 服务。
using System.Web.Script.Services;
[WebMethod]
[ScriptMethod(UseHttpGet = false, ResponseFormat = ResponseFormat.Json)]
public List<string> GetFarmersByName(string aaa)
{
List<string> list = new List<string>();
list.Add(aaa);
return list;
}
回答by NiKhil Kutewalla
try this -
尝试这个 -
<script type="text/javascript">
$(function () { $("#<%=tags.ClientID %>").autocomplete({
source:function (request, response) {
var obj = JSON.Stringfy("{ 'name' : '" + $("#<%=tags.ClientID %>").val() + "'}");
$.ajax ({
type: "POST",
url: "~/Services/AutoComplete.asmx/GetFarmersByName",
data: obj,
contentType: "application/json; charset=utf-8",
dataType: "json",
async: true,
dataFilter: function (data) { return data; },
success: function (data) {
response($(data.d, function (item) {
return {
value: item.AdrNm
}
}));
},
error: function (XMLHttpRequest, textStatus, errorThrown) {
alert(textStatus);
}
});
}
});
});
and the webmethod-
和网络方法-
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public List<FMISPersonalDataViewByName_Result> GetFarmersByName(string name)
{
this._personalData = new personalData();
int cky = 45;
CdMa cdMas = new CdMa();
cdMas = this._personalData.getcdMasByConcdCd2(cky, "AdrPreFix", true);
int prefixKy = cdMas.CdKy;
List<FMISPersonalDataViewByName_Result> list = new List<FMISPersonalDataViewByName_Result>();
list = this._personalData.GetPersonalDataByName(prefixKy, cky, name);
return list;
}
