Question

I’m getting the following exception from System.IO.Path.CheckInvalidPathChars() in mscorlib:

[ArgumentException: Illegal characters
in path.]
System.IO.Path.CheckInvalidPathChars(String
path) +142
System.IO.Path.NormalizePath(String
path, Boolean fullCheck, Int32
maxPathLength) +100
System.IO.Path.GetFullPath(String
path) +187
System.Xml.XmlResolver.ResolveUri(Uri
baseUri, String relativeUri) +114
System.Xml.XmlTextReaderImpl..ctor(String
url, XmlNameTable nt) +135
System.Xml.XmlDocument.Load(String
filename) +85
Sitecore.Web.UI.WebControls.WebEditRibbon.ConvertToJson(String
layout) +210
Sitecore.Web.UI.WebControls.WebEditRibbon.Render(HtmlTextWriter
output, Item item) +1268
Sitecore.Web.UI.WebControl.Render(HtmlTextWriter
output) +387
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter
writer, ICollection children) +246
System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter
writer) +315
System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter
writer) +48
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter
writer, ControlAdapter adapter)
[phone] System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter
writer, ICollection children) +246
System.Web.UI.Page.Render(HtmlTextWriter
writer) +40
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean
includeStagesAfterAsyncPoint) +5274

The thing is, I don’t what the path value is that’s causing this error. It would help if I could debug the method so I can see the value of the path parameter. I enabled stepping into the .Net Framework code in Visual Studio 2010. I’ve also loaded the related .Net Framework Symbols from the Microsoft Symbol Servers. However, it seems these PDBs don’t include the source; so I can’t step into CheckInvalidPathChars and retrieve the path value.

Is it possible to debug mscorlib and step through its source?

Relevant info:

• .Net Framework 4.0.
• Visual Studio 2010

Any constructive input is greatly appreciated.

Thanks,
Frank

Answer 1

You can get the reference source for the .NET libraries.
http://referencesource.microsoft.com/

Looking at your stacktrace, the problem appears to be originating in Sitecore.Web.UI.WebControls.WebEditRibbon.ConvertToJson. That thing is trying to load an XML file.