如何通过调用 Web 方法在引导 Twitter 类型提前上进行远程调用 asp.net 工作
本文关键字：调用 程调用 工作 net asp 方法 Web 何通过 类型 Twitter | 更新日期: 2023-09-27 18:30:40
我正在尝试使用bloohound's remote函数加载我的typeahead.js，我可以在其中调用我的 Web 方法。我见过类似的线程
querystring：- 将 Typeahead.js 与 ASP.Net Web方法 集成
- Typeahead.js 和 Bloodhound.js与 C# WebForms WebMethod 的集成
- http://yassershaikh.com/using-twitter-typeahead-js-with-asp-net-mvc-web-api/
还有更多....
但是，我找不到使用ajax从typeahead.js.调用webmethod的示例
所以这就是我目前拥有的，它可以工作：
网络方法
[WebMethod]
public static string GetEmployeeTypeahead()
{
JavaScriptSerializer jss = new JavaScriptSerializer();
jss.MaxJsonLength = 100000000;
string json;
using (var rep = new RBZPOS_CSHARPEntities())
{
var result = rep.Employees
.Where(x => x.EMPLOYEESTATE == 1)
.Select(x => new {
x.EMPLOYEEID,
x.FULLNAME,
x.MANNO,
x.NRC
}).ToList();
json = jss.Serialize(result);
}
return json;
}
客户
function LoadEmployeeJSON() {
$.ajax({
type: "POST",
url: "/WebMethods/Test.aspx/GetEmployeeTypeahead",
data: "{}",
contentType: "application/json",
dataType: "json",
success: function (msg) {
empList = $.parseJSON(msg.d); //otherwise does not work
LoadEmployeeTypeahead();
},
error: function (msg) {
alert("error:" + JSON.stringify(msg));
}
});
}
function LoadEmployeeTypeahead() {
var empData = empList;
var fullname = new Bloodhound({
datumTokenizer: function (d) {
return Bloodhound.tokenizers.whitespace(d.FULLNAME)
},
queryTokenizer: Bloodhound.tokenizers.whitespace,
local: empData,
limit: 10
});
fullname.initialize();
// Make the code less verbose by creating variables for the following
var fullnameTypeahead = $('#<%=txtFullName.ClientID %>.typeahead');
// Initialise typeahead for the employee name
fullnameTypeahead.typeahead({
highlight: true
}, {
name: 'FULLNAME',
displayKey: 'FULLNAME',
source: fullname.ttAdapter(),
templates: {
empty: [
'<div class="empty-message">',
'No match',
'</div>'
].join(''n'),
suggestion: function (data) {
return '<h6 class="">' + data.FULLNAME + "<span class='pull-right text-muted small'><em>" + data.NRC + "</em></span>" + '</h6>';
}
}
});
var fullnameSelectedHandler = function (eventObject, suggestionObject, suggestionDataset) {
/* See comment in previous method */
$('#<%=txtFullName.ClientID %>').val(suggestionObject.FULLNAME);
$('#<%=txtEmployeeID.ClientID %>').val(suggestionObject.EMPLOYEEID);
$('#<%=txtManNo.ClientID %>').val(suggestionObject.MANNO);
$('#<%=txtNRC.ClientID %>').val(suggestionObject.NRC);
};
// Associate the typeahead:selected event with the bespoke handler
fullnameTypeahead.on('typeahead:selected', fullnameSelectedHandler);
}
function clearAndReInitilize() {
$('.typeahead').typeahead('destroy');
$('.typeahead').val('');
}
如您所见，我正在拨打local电话而不是remote.
如何让 remote 函数调用我的webthod并填充typeahead而无需使用任何querystrings
好的，
终于通过 ashx 泛型处理程序让它工作了。因此，我没有使用 Web 方法，而是使用以下 ashx 处理程序：
public class Employess : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
JavaScriptSerializer jss = new JavaScriptSerializer();
jss.MaxJsonLength = Int32.MaxValue;
string json;
string prefixText = context.Request.QueryString["query"];
using (var rep = new RBZPOS_CSHARPEntities())
{
var result = rep.Employees
.Where(x => x.EMPLOYEESTATE == 1 && x.FULLNAME.Contains(prefixText.ToUpper()))
.Select(x => new
{
x.EMPLOYEEID,
x.FULLNAME,
x.MANNO,
x.NRC
}).ToArray();
json = jss.Serialize(result);
}
context.Response.ContentType = "text/javascript";
context.Response.Write(json);
}
public bool IsReusable
{
get
{
return false;
}
}
}
下面是 jquery 和 ajax 对 ashx 处理程序的调用
$(document).ready(function () {
$(document).ajaxStart($.blockUI).ajaxStop($.unblockUI);
LoadEmployeeTypeahead();
// LoadEmployeeJSON();
});
function LoadEmployeeTypeahead() {
//var empData = empList;
var fullname = new Bloodhound({
remote: {
url: '/Employess.ashx?query=%QUERY',
wildcard: '%QUERY'
},
datumTokenizer: function (d) {
//var employees = $.parseJSON(msg.d);
return Bloodhound.tokenizers.whitespace(d.FULLNAME)
},
queryTokenizer: Bloodhound.tokenizers.whitespace,
limit: 10
});
fullname.initialize();
// Make the code less verbose by creating variables for the following
var fullnameTypeahead = $('#<%=txtFullName.ClientID %>.typeahead');
// Initialise typeahead for the employee name
fullnameTypeahead.typeahead({
highlight: true
}, {
name: 'FULLNAME',
displayKey: 'FULLNAME',
source: fullname.ttAdapter(),
templates: {
empty: [
'<div class="empty-message">',
'No match',
'</div>'
].join(''n'),
suggestion: function (data) {
return '<h6 class="">' + data.FULLNAME + "<span class='pull-right text-muted small'><em>" + data.MANNO + "</em></span><span class='pull-right text-muted small'><em>" + data.NRC + "</em></span>" + '</h6>';
}
}
});
var fullnameSelectedHandler = function (eventObject, suggestionObject, suggestionDataset) {
/* See comment in previous method */
$('#<%=txtFullName.ClientID %>').val(suggestionObject.FULLNAME);
$('#<%=txtEmployeeID.ClientID %>').val(suggestionObject.EMPLOYEEID);
$('#<%=txtManNo.ClientID %>').val(suggestionObject.MANNO);
$('#<%=txtNRC.ClientID %>').val(suggestionObject.NRC);
};
// Associate the typeahead:selected event with the bespoke handler
fullnameTypeahead.on('typeahead:selected', fullnameSelectedHandler);
}