JavaScript 訪問 c#變數的方法

來源:互聯網
上載者:User
問:
Hi,

I have this C#/ASP.NET/.aspx page with a string variable named myString with the value "Mario Gamito".

How can I access "Mario Gamito" from within a JavaScript function, i. e., the variable's value ?

Already tried '" + mystring + "' but it doesn't works.

Any help would be appreciated.

答1:

<!-- Default2.aspx -->
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
    <script type="text/javascript">
        function show()
        {
            var value=document.getElementById("Hidden1").value;
            window.alert(value);
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <input id="Hidden1" type="hidden" runat="server"/>
        <input id="Button1" type="button" value="button" onclick="show();"/>
    </div>
    </form>
</body>
</html>

using System;
using System.Collections;
//Default2.aspx.cs
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public partial class Default2 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        string mySting = "Mario Gamito";
        this.Hidden1.Value = mySting;
    }
}

答2:

you can also try pushing the variable to javascript using the registerClientScriptBlock

string jsVariable = string.Empty;
string mySting = "Mario Gamito";

jsVariable = "var myjsString = " + myString;


this.Page.ClientScript.RegisterClientScriptBlock(
                    this.GetType(), "YourStringVar", jsVariable, true);
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