Michael James - Developer

Tonight I spent some time continuing my port of a Mobile Application I developed a few years ago over to UWP. As it was built in Xamarin.Forms , which also supports UWP, so far its been a fairly straight forward process. During testing tonight however I kept getting an uncaught exception every time I tapped a list item. Specified argument was out of the range of valid values - Source Xamarin.Forms.Core Nasty Exception Now first I double checked the code and found UWP, iOS and Android all run the same code and nothing had changed, so I hadn't accidentally broken anything. What I did note was the pages that didn't have grouped list items worked fine, where as grouped lists always crashed. This lead me to take a look at my ItemSource code for the listview. My ListView ItemSource Now those observant might notice in the pic I'm inspecting the listingNavigationItems, and like I might have realised the potential issue. Dependent on whether grouping is enabled I eith...

I've been off sick from work with Man Flu but this afternoon I was getting bored of staying in bed for the second day so I got out my laptop just to have a play in between blowing my nose. I wanted to write a quick way of looking up the full url path for a page within a sitemap. The only bit of information I know is the key of the page. Now I knew that I could possibly make use of the IndexOf method. This expects a SiteMapNode of the value you are looking for and returns the index of the node, you then need to get the node out of your collection of nodes, example below. SiteMapNodeCollection nodes = SiteMap.RootNode.GetAllNodes(); int nodeIndex = nodes.IndexOf(new SiteMapNode(SiteMap.Provider, pagekey)); return nodes[nodeIndex].Url ?? String.Empty; Now that method does work, however it felt dead clunky, I was sure I could write a more .Net 3.5 shiny one line way of doing this using Linq. In fact it was dead easy. First I still needed to get all the nodes, SiteMap.RootNode.GetAllNod...