If you call Single to get an object from your DB and the object doesn’t exist you will get an InvalidOperationException. return this.DataContext.MemberDaos.Single(m => m.MemberID == id); Instead o
If you are using LINQ to insert data with RTM bits you won’t find the Add method on the DataContext post Beta2. Use the InsertOnSubmit method instead.
It’s usually a good idea to seperate Biz Layer Objects and Data Access Objects into seperate assemblies, but when you do that and use LINQ to SQL (.dbml) files the DataContext object default ctor uses
SilverLight 1.0 was released today and Microsoft confirmed that they are working with Novell to produce a version of it for Linux. Great news!
Binding simple (int/string, etc) type properties to a TemplateColumn in a GridView is easy, but when you need to bind the Grid to an object that has properties that aren’t simple types it gets a bit m
When dev’n I frequently want to close all the open documents in VS. The right click on tab command in VS doesn’t have that option, so after digging around in the customize window box I found “Window
Tim McBride just pushed out his code that dynamically creates the profile provider classes for non-WebSite projects. http://www.codeplex.com/WebProfile/
If you create a project in Blend 2 May Preview and right click on the project and select “Edit in Visual Studio”. Blend 2 creates that VS project using version 2.0 of the .NET Framework. Some symptoms
I just installed Orcas and was getting this error when running a performance test: Event Type: Error Event Source: ASP.NET 2.0.50727.0 Event Category: None Event ID: 1062 Date: 5/24/2007 Time: 11:1
I do a bit of recording and usually bounce my tracks to 16bit WAVs because Windows Media Player doesn’t support 24bit WAV out of the box and I couldn’t find the right codecs. I also use Windows Media
I just spent a while searching for the ATOM 1.0 schema definition. This looks like the most human readable form out there. http://www.atomenabled.org/developers/syndication/ HTH, Jon
I found out the hard way that Web Application Projects do not support dynamic class generation for profile providers. For now you need to use the “WebSite” type project instead of WAP or you can use
I’m working on this app that pulls the ip address from the request headers. When debugging the app locally the headers are always “127.0.0.1”, which doesn’t help because I need to know the actual IP a
I just deployed a new wpf/e control to a new server and found that I need to register the content types for xaml, etc. You will find the configuration steps here: http://msdn2.microsoft.com/en-us/libr
Lutz Roeder’s Reflector add-ins are now on www.CodePlex.com http://www.codeplex.com/reflectoraddins
For all those dev’n on Vista, self included :) http://www.microsoft.com/downloads/details.aspx?FamilyID=90e2942d-3ad1-4873-a2ee-4acc0aace5b6&displaylang=en
I just spent the last few hours trying to track down why I kept getting an “is null or not an object” error when setting up a service with a ScriptService attribute. I started my coding with a PageMet
I accidentally hit Ctrl+F1 today and my ribbon was gone. Hit Ctrl + F1 and it’s back. Kind of a hidden command, HTH
Lets say you have this xml: Blog Content And you are using an XmlDataSource to run it through a repeater. You can easily get the attributes like so: <%#Eval(“Date”)%> To get the innerText
If you are referencing an external configuration file in your web application and are caching that access, then look at using the restartOnExternalChanges config attribute to restart the domain on con