asp.net网页中不显示pdf

Question

电脑在没有装pdf阅读器，网页中嵌入的pdf不能显示，这时，我想弹出个提示，安装PDF插件？

Answer 1

http://topic.csdn.net/u/20091109/10/278c55dc-0489-4214-a407-1006664a806d.html

Answer 2

我现在的pdf文件在网页上，已经能正常显示了，现在是如何判断客户端ie是否安装了pdf文件阅读器……

Answer 3

<script type="text/javascript">
        function isAcrobatPluginInstall() {
            //Firefox
            if (navigator.plugins && navigator.plugins.length) {
                for (x = 0; x < navigator.plugins.length; x++) {
                    if (navigator.plugins[x].name == 'Adobe Acrobat')
                        return true;
                }
            }
            //IE
            else if (window.ActiveXObject) {
                for (x = 2; x < 10; x++) {
                    try {
                        oAcro = eval("new ActiveXObject('PDF.PdfCtrl." + x + "');");
                        if (oAcro) {
                            return true;
                        }
                    }
                    catch (e) { }
                }
                try {
                    oAcro4 = new ActiveXObject('PDF.PdfCtrl.1');
                    if (oAcro4) {
                        return true;
                    }
                }
                catch (e) { }
                try {
                    oAcro7 = new ActiveXObject('AcroPDF.PDF.1');
                    if (oAcro7)
                        return true;
                }
                catch (e) { }
            }
        }
        if (!isAcrobatPluginInstall()) {
            alert('您的电脑没有安装PDF阅读器，PDF文档无法打开！');
        }        
    </script>