empty multinodepicker cause error loading script input string not in correct format - Razor

Press Ctrl / CMD + C to copy this to your clipboard.

Copied to clipboard

Flag this post as spam?

This post will be reported to the moderators as potential spam to be looked at

Harald Ulriksen 207 posts 249 karma points

May 24, 2011 @ 22:46

Empty MultiNodePicker cause Error Loading Script - input string not in correct format

Razor

I have a page with a multinodepicker, the problem is that just accessing the property for this picker cause a rather nasty exception if it's empty (i.e. the user has not selected any nodes).

var maybeDynamicXml = node.selectedMedia;

Any tips on how I can get around this?

Error Loading Razor Script (file: Categories 
List) Input string was not in a correct format.    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 System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at umbraco.MacroEngines.DynamicNode.ConvertPropertyValueByDataType(Object& result, String name, Guid dataType)
   at umbraco.MacroEngines.DynamicNode.TryGetMember(GetMemberBinder binder, Object& result)
   at CallSite.Target(Closure , CallSite , Object )
   at 
ASP._Page_macroScripts_CategoriesList_cshtml.<>c__DisplayClass7.<productImage>b__6(TextWriter
 __razor_helper_writer) in 
c:\sourcecode\B-Sessions\bid\umbraco\macroScripts\CategoriesList.cshtml:line
 14
   at System.Web.WebPages.WebPageBase.Write(HelperResult result)
   at ASP._Page_macroScripts_CategoriesList_cshtml.Execute() in 
c:\sourcecode\B-Sessions\bid\umbraco\macroScripts\CategoriesList.cshtml:line
 32
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   at System.Web.WebPages.WebPage.ExecutePageHierarchy()
   at 
System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext 
pageContext, TextWriter writer, WebPageRenderingBase startPage)
   at umbraco.MacroEngines.RazorMacroEngine.ExecuteRazor(MacroModel macro, INode currentPage)
   at umbraco.MacroEngines.RazorMacroEngine.Execute(MacroModel macro, INode currentPage)

Copy Link

Harald Ulriksen 207 posts 249 karma points

May 24, 2011 @ 22:59

0

Solved by checking the GetProperty method before accessing the property directly. This error may be related to the document beeing created by the api, not the UI.

Copy Link

Sebastiaan Janssen 5045 posts 15476 karma points MVP admin hq

May 24, 2011 @ 23:03

Try:

@if(Model.SelectedMedia.GetType() != typeof(DynamicNull) && !string.IsNullOrWhitespace(Model.SelectedMedia)) {
    var maybeDynamicXml = Model.SelectedMedia;
    //Do something with it...
}

This will improve in 4.7.1 by the way, with a better HasValue method.

Copy Link

is working on a reply...

Please Sign in or register to post replies