【问题标题】:Silverlight in ASPX page not loading, but does in HTMLASPX 页面中的 Silverlight 未加载,但在 HTML 中加载
【发布时间】:2009-10-24 13:35:48
【问题描述】:

我有一个 ASPX Web 应用程序,其中一个页面应加载 Silverlight 应用程序。我遇到的问题是 Silverlight 应用程序不会出现在任何 ASPX 页面上,但会出现在 HTML 页面上。这是使用 VS 的 ASP.Net 开发服务器。

当我添加 SL 应用程序时,VS 创建了两个测试页面。如前所述,HTML 页面有效,但 ASPX 测试页面无效。我已将 HTML 页面的副本创建为 ASPX 页面,但它不起作用。通过 Fiddler 和 Silverlight Spy 运行它表明没有尝试下载 Silverlight 应用程序(Fiddler 中没有行),甚至没有启动 Silverlight 插件(右键单击页面上的任意位置不显示 Silverlight 上下文菜单)。加载 ASPX 页面后,IE 或 Firefox 不会报告页面加载或 JavaScript 错误

我已经尝试了<object> 方法以及<asp:silverlight>。没有给我任何快乐。

这是由 VS 生成的 HTML 页面的代码:

    <!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>
    <title>Web.DataAnalytics.Dashboard</title>

    <style type="text/css">
    html, body {
        height: 100%;
        overflow: auto;
    }
    body {
        padding: 0;
        margin: 0;
    }
    #silverlightControlHost {
        height: 100%;
    }
    </style>
    <script type="text/javascript" src="./Silverlight.js"></script>
    <script type="text/javascript">
        function onSilverlightError(sender, args) {

            var appSource = "";
            if (sender != null && sender != 0) {
                appSource = sender.getHost().Source;
            } 
            var errorType = args.ErrorType;
            var iErrorCode = args.ErrorCode;

            var errMsg = "Unhandled Error in Silverlight 2 Application " +  appSource + "\n" ;

            errMsg += "Code: "+ iErrorCode + "    \n";
            errMsg += "Category: " + errorType + "       \n";
            errMsg += "Message: " + args.ErrorMessage + "     \n";

            if (errorType == "ParserError")
            {
                errMsg += "File: " + args.xamlFile + "     \n";
                errMsg += "Line: " + args.lineNumber + "     \n";
                errMsg += "Position: " + args.charPosition + "     \n";
            }
            else if (errorType == "RuntimeError")
            {           
                if (args.lineNumber != 0)
                {
                    errMsg += "Line: " + args.lineNumber + "     \n";
                    errMsg += "Position: " +  args.charPosition + "     \n";
                }
                errMsg += "MethodName: " + args.methodName + "     \n";
            }

            throw new Error(errMsg);
        }
    </script>
</head>

<body>
    <!-- Runtime errors from Silverlight will be displayed here.
    This will contain debugging information and should be removed or hidden when debugging is completed -->
    <div id='errorLocation' style="font-size: small;color: Gray;"></div>

    <div id="silverlightControlHost">
        <object data="data:application/x-silverlight-2," type="application/x-silverlight-2" width="100%" height="100%">
            <param name="source" value="./ClientBin/Web.DataAnalytics.Dashboard.xap"/>
            <param name="onerror" value="onSilverlightError" />
            <param name="background" value="white" />
            <param name="minRuntimeVersion" value="2.0.31005.0" />
            <param name="autoUpgrade" value="true" />
            <a href="http://go.microsoft.com/fwlink/?LinkID=124807" style="text-decoration: none;">
                <img src="http://go.microsoft.com/fwlink/?LinkId=108181" alt="Get Microsoft Silverlight" style="border-style: none"/>
            </a>
        </object>
        <iframe style='visibility:hidden;height:0;width:0;border:0px'></iframe>
    </div>
</body>
</html>

下面是VS生成的测试ASPX不工作的代码:

    <%@ Page Language="c#" AutoEventWireup="true" %>

<%@ Register Assembly="System.Web.Silverlight" Namespace="System.Web.UI.SilverlightControls"
    TagPrefix="asp" %>

<!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" style="height:100%;">
<head runat="server">
    <title>Web.DataAnalytics.Dashboard</title>
</head>
<body style="height:100%;margin:0;">
    <form id="form1" runat="server" style="height:100%;">
        <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
        <div  style="height:100%;">
            <asp:Silverlight ID="Xaml1" runat="server" Source="~/ClientBin/Web.DataAnalytics.Dashboard.xap" MinimumVersion="2.0.31005.0" Width="100%" Height="100%" />
        </div>
    </form>
</body>
</html>

这是我从正常工作的 HTML 页面创建的 ASPX 页面,它也不起作用:

<%@ Page Language="c#" AutoEventWireup="true" %>

<!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>Web.DataAnalytics.Dashboard</title>

    <style type="text/css">
    html, body {
        height: 100%;
        overflow: auto;
    }
    body {
        padding: 0;
        margin: 0;
    }
    #silverlightControlHost {
        height: 100%;
    }
    </style>
    <script type="text/javascript" src="./Silverlight.js"></script>
    <script type="text/javascript">
        function onSilverlightError(sender, args) {

            var appSource = "";
            if (sender != null && sender != 0) {
                appSource = sender.getHost().Source;
            } 
            var errorType = args.ErrorType;
            var iErrorCode = args.ErrorCode;

            var errMsg = "Unhandled Error in Silverlight 2 Application " +  appSource + "\n" ;

            errMsg += "Code: "+ iErrorCode + "    \n";
            errMsg += "Category: " + errorType + "       \n";
            errMsg += "Message: " + args.ErrorMessage + "     \n";

            if (errorType == "ParserError")
            {
                errMsg += "File: " + args.xamlFile + "     \n";
                errMsg += "Line: " + args.lineNumber + "     \n";
                errMsg += "Position: " + args.charPosition + "     \n";
            }
            else if (errorType == "RuntimeError")
            {           
                if (args.lineNumber != 0)
                {
                    errMsg += "Line: " + args.lineNumber + "     \n";
                    errMsg += "Position: " +  args.charPosition + "     \n";
                }
                errMsg += "MethodName: " + args.methodName + "     \n";
            }

            throw new Error(errMsg);
        }
    </script>
</head>

<body>
    <!-- Runtime errors from Silverlight will be displayed here.
    This will contain debugging information and should be removed or hidden when debugging is completed -->
    <div id='errorLocation' style="font-size: small;color: Gray;"></div>

    <div id="silverlightControlHost">
        <object data="data:application/x-silverlight-2," type="application/x-silverlight-2" width="100%" height="100%">
            <param name="source" value="./ClientBin/Web.DataAnalytics.Dashboard.xap"/>
            <param name="onerror" value="onSilverlightError" />
            <param name="background" value="white" />
            <param name="minRuntimeVersion" value="2.0.31005.0" />
            <param name="autoUpgrade" value="true" />
            <a href="http://go.microsoft.com/fwlink/?LinkID=124807" style="text-decoration: none;">
                <img src="http://go.microsoft.com/fwlink/?LinkId=108181" alt="Get Microsoft Silverlight" style="border-style: none"/>
            </a>
        </object>
        <iframe style='visibility:hidden;height:0;width:0;border:0px'></iframe>
    </div>
</body>
</html>

任何帮助将不胜感激

【问题讨论】:

    标签: asp.net silverlight


    【解决方案1】:

    发现问题:

    我们有一个应用于 ASPX 页面的主题。在 CSS 中,存在以下条目:

    OBJECT {
    
    DISPLAY: none
    
    }
    

    删除这种有问题的样式后,Silverlight 应用程序出现了。

    我通过将 ASPX 渲染的 HTML 复制到一个新的 HTML 页面中发现了这一点,但发现它也不起作用!我能找到的唯一区别是标题中包含的 CSS。删除此条目后,Silverlight 应用程序将正常工作。使用 IE8 开发人员工具,我开始仔细检查应用的 CSS,发现上面的规则适用于我的 Object 条目。

    谢谢大家。向 Silverlight.Net 论坛上的绅士大喊;当我向他们发布相同的问题/问题时,他们真的很热心并且对我很有帮助

    【讨论】:

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