如何将字典从C＃（服务器）传递到javascript（客户端）
[英]How to pass Dictionary from c#(server) to javascript(client)
问题描述
I have a function in c# that builds dictionary ,I need to pass this dictionary to my java-script function. 
我在c＃中有一个构建字典的函数，我需要将此字典传递给我的Java脚本函数。
This is what I have tried 这就是我尝试过的
My server function 我的服务器功能
public partial class login : System.Web.UI.Page
{
protected Dictionary<string, string> GetTradingTypeToSelect()
{
Dictionary<string, string> dict = new Dictionary<string, string>();
try {
string Types =GetString("some text);
var items = Types.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries)
.Select(s => s.Split(new[] { '=' }));
foreach (var item in items)
{
dict.Add(item[1], item[0]);
}
//this working 100%
}
catch (Exception ex)
{
}
return dict;
}
}
My client: 我的客户：
$(document).ready(function () {
$("#Account").keyup(function () {
var TradingTypeToSelect = '<%=GetTradingTypeToSelect();%>';
//TradingTypeToSelect is equals to string '<%=GetTradingTypeToSelect();%>'
var test = TradingTypeToSelect[0].key;
var test2 = TradingTypeToSelect[0].value;
});
});
What am I missing here? 我在这里想念什么？
3 个解决方案
解决方案1
1 已采纳 2016-08-25 12:52:21
You can create a [WebMethod] in the code behind and call it from javascript using $.ajax .Below is a complete example: 您可以在后面的代码中创建[WebMethod]并使用$.ajax从javascript调用它。以下是一个完整的示例：
Code behind: 后面的代码：
[System.Web.Services.WebMethod]
public static Dictionary<string, string> GetTradingTypeToSelect()
{
var dict = new Dictionary<string, string>();
dict.Add("1", "Item 1");
dict.Add("2", "Item 2");
return dict;
}
.ASPX: .ASPX：
<head runat="server">
<title></title>
<script src="//code.jquery.com/jquery-1.12.3.min.js"></script>
<script type="text/javascript">
$(function () {
$("#Account").keyup(function () {
$.ajax({
type: "POST",
url: "AjaxCallExample.aspx/GetTradingTypeToSelect",
contentType: "application/json;charset=utf-8",
success: function (data) {
alert(data.d["1"]);
alert(data.d["2"]);
},
error: function (errordata) {
console.log(errordata);
}
});
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<input id="Account" type="text" />
</form>
</body>
解决方案2
1 2016-08-25 13:32:37
How about exposing the dictionary in the view model: 如何在视图模型中公开字典：
public Dictionary<string, string> TradingTypesToSelect { get; set; }
And iterate over the dictionary inside the <script> block, creating a JavaScript associative array, like so: 然后遍历<script>块中的字典，创建一个JavaScript关联数组，如下所示：
<script>
var tradingTypesToSelect = {};
<% foreach (var tradingType in Model.TradingTypesToSelect) { %>
tradingTypesToSelect["<%= tradingType.Key %>"] = "<%= tradingType.Value %>";
<% } %>
</script>
At least this way you don't have to make another call (via AJAX) to retrieve additional data. 至少通过这种方式，您不必（通过AJAX）再次调用即可检索其他数据。
解决方案3
0 2016-08-25 12:30:36
I believe you need to make a WebMethod to enable the server function to be called from the client side. 我相信您需要创建一个WebMethod来启用从客户端调用服务器功能。 Here is an example: Calling ASP.Net WebMethod using jQuery AJAX 这是一个示例： 使用jQuery AJAX调用ASP.Net WebMethod
声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.