值不能为空。参数名称：字符串-Asp.net Umbraco网站

Question

请检查一次错误堆栈，并告知错误发生的原因以及解决方案。我收到很多这样的错误。这是Asp.net Umbraco网站。

全栈跟踪：

System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. 
--> System.ArgumentNullException: Value cannot be null. Parameter name: String
 at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
 at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
 at ASP.usercontrols_adviserprofileright_ascx.__Render__control1(HtmlTextWriter __w, Control parameterContainer)
 at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
 at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
 at System.Web.UI.Control.Render(HtmlTextWriter writer)
 at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
 at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
 at umbraco.presentation.templateControls.Macro.Render(HtmlTextWriter writer)
 at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
 at ASP.masterpages_adviser_master.__Render__control6(HtmlTextWriter __w, Control parameterContainer)
 at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
 at System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer)
 at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
 at System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output)
 at umbraco.presentation.urlRewriter.FormRewriterControlAdapter.Render(HtmlTextWriter writer)
 at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer)
 at ASP.masterpages_adviser_master.__Render__control2(HtmlTextWriter __w, Control parameterContainer)
 at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
 at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
 at System.Web.UI.Control.Render(HtmlTextWriter writer)
 at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
 at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
 at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
 at umbraco.presentation.masterpages._default.Render(HtmlTextWriter writer)
 at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
 at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
 at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
 at System.Web.UI.Control.Render(HtmlTextWriter writer)
 at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
 at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
 at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
 at umbraco.UmbracoDefault.Render(HtmlTextWriter writer)
 at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
 at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
 at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
 at System.Web.UI.Page.HandleError(Exception e)
 at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
 at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
 at System.Web.UI.Page.ProcessRequest()
 at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)
 at System.Web.UI.Page.ProcessRequest(HttpContext context)
 at ASP.default_aspx.ProcessRequest(HttpContext context)
 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
 at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Answer 1

使字符串参数可为空，例如（string name =“”）。是lptiona