“/”应用程序中的服务器错误。

未将对象引用设置到对象的实例。

说明: 执行当前 Web 请求期间,出现未经处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。

异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。

源错误:


行 245:        //    }
行 246:        //}
行 247:        if (!string.IsNullOrEmpty(value.ToString().Trim()) && value.ToString().Trim().Length > length)
行 248:        {
行 249:            value = value.ToString().Trim().Substring(0, length) + "…";

源文件: e:\vhost\a29d9d8428bd1c7d95f3573c5cd19128\httpdocs\App_Code\StringUtil.cs    行: 247

堆栈跟踪:


[NullReferenceException: 未将对象引用设置到对象的实例。]
   StringUtil.SubString(Object value, Int32 length) in e:\vhost\a29d9d8428bd1c7d95f3573c5cd19128\httpdocs\App_Code\StringUtil.cs:247
   ASP.article_aspx.__Renderform1(HtmlTextWriter __w, Control parameterContainer) in e:\vhost\a29d9d8428bd1c7d95f3573c5cd19128\httpdocs\article.aspx:29
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +270
   System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +9840022
   System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +32
   System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +55
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +67
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +101
   System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +43
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +129
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +14
   System.Web.UI.Page.Render(HtmlTextWriter writer) +30
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +67
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +101
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +27
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1342


版本信息: Microsoft .NET Framework 版本:4.0.30319; ASP.NET 版本:4.8.4700.0