Aaron Hoffman's Blog

When using knockout.js  if your ViewModel is an array and you want to bind to the entire ViewModel, the syntax to bind to the ViewModel root, when the root is the current context: <ul data-bind="foreach: $data"> <li> <p data-bind="text: SomeTextProperty"> </p> </li> </ul> The XAML syntax equivalent when the DataContext is an array: <itemscontrol ItemsSource="{Binding Path=.}"> ... </itemscontrol> Hope this helps, Aaron

---------------------- ASP.NET MVC 4 Membership Overview:  http://aaron-hoffman.blogspot.com/2013/02/aspnet-mvc-4-membership-users-passwords.html ---------------------- Using SQL Profiler, below is the SQL that is executed when the ASP.NET MVC 4 SimpleMembershipProvider's WebMatrix.WebData.WebSecurity.CreateUserAndAccount() method is called: Text below in bold is dynamic and represents the UserName and Password properties passed to the CreateUserAndAccount() method as well as the UserId generated as part of user creation. Similarly, the name of the UserId and UserName columns, and the name of the UserProfile table may also be different based on your specific configuration. exec sp_executesql N'SELECT [UserId] FROM [UserProfile] WHERE (UPPER([UserName]) = @0)',N'@0 nvarchar(23)',@0=N' UserName ' exec sp_executesql N'INSERT INTO [UserProfile] ([UserName]) VALUES (@0)',N'@0 nvarchar(23)',@0=N' UserName ' exec sp_executesq

---------------------- ASP.NET MVC 4 Membership Overview:  http://aaron-hoffman.blogspot.com/2013/02/aspnet-mvc-4-membership-users-passwords.html ---------------------- Using SQL Profiler, below is the SQL that is executed when the ASP.NET MVC 4 SimpleMembershipProvider's WebMatrix.WebData.WebSecurity.Login() method is called: The UserName below (in bold ) is dynamic, it represents the UserName parameter passed to the Login() method. Similarly, the name of the UserId and UserName columns, and the name of the UserProfile table may also be different based on your specific configuration. exec sp_executesql N'SELECT [UserId] FROM [UserProfile] WHERE (UPPER([UserName]) = @0)',N'@0 nvarchar(25)',@0=N' UserName ' exec sp_executesql N'SELECT COUNT(*) FROM webpages_Membership WHERE (UserId = @0 AND IsConfirmed = 1)',N'@0 int',@0=1 SELECT m.[Password] FROM webpages_Membership m, [UserProfile] u WHERE m.UserId = 1 AND m.UserId =

After adding a new file or project within a Visual Studio solution there are certain settings that I always update.  Follow the steps below to edit the default templates so these settings become the default. Visual Studio 2012 Project and Item Template files are located here: C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\ItemTemplates C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\ProjectTemplates Add "public" to all new C# class files: Edit the Class.cs file by adding the word "public" in front of the word "class" The Class.cs can be found here: C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\ItemTemplates\CSharp\Code\1033\Class\Class.cs After you're done, it should look like this: using System; using System.Collections.Generic; $if$ ($targetframeworkversion$ >= 3.5)using System.Linq; $endif$using System.Text; $if$ ($targetframeworkversion$ >= 4.5)using System.Threading.Tasks; $e

Google searches of "JavaScript null check" and "How to check for null in JavaScript" were returning results that left something to be desired in my opinion, so I compiled this list. See the code live here: JsFiddle:  http://jsfiddle.net/aaronhoffman/DdRHB/5/ Code also available here: https://github.com/aaronhoffman/utils/blob/master/JavaScript/NullChecks.js Comparison Chart: Hope this helps, Aaron p.s. I used a great tool Regex Pixie  http://www.regexpixie.com/  by StoneFinch  http://stonefinch.com/  to generate most of the code in this example (disclaimer, I currently work for them, however I would never promote a tool I don't use myself.)

Want your data to really pop ? Check out my latest project: Sizzle drag-and-drop interactive data visualization Sorting a Calculated field (or Value field) in Excel 2013 Pivot Tables may not be very clear.  Unlike the Row fields there is no option button in the column header allowing you to easily sort the column, but it is possible. In the example below, I have a Pivot Table with "ListItemAbv" as the Row and "Count of ListItemAbv" as a calculated field (there is also a filter on "RankOrder", but that is not relevant to the example) Notice that, by default, the Pivot Table is sorted by "ListItemAbv."  There is also an option button visible in the header column (A:3).  You can use that option button to easily sort the Pivot Table by "ListItemAbv." However, there is no option button available to sort the Pivot Table by the Calculated field "Count of ListItemAbv".  To sort by that calculated field, select

I recently purchased a Microsoft Arc Touch Mouse and wanted to turn off the middle button wheel scroll sound vibration. It is possible, however perhaps not obvious.  First you need to download the "Mouse and Keyboard Center" executable available on this page https://www.microsoft.com/accessories/en-us/products/mice/arc-touch-mouse/rvf-00052#techspecs-connect . (direct link Win10 x64: https://go.microsoft.com/fwlink/?linkid=849754  ) Run the executable and install the software.  After the software is installed, turn off "Vibration." See image below: Hope this helps, Aaron p.s.  Want to make that next report really pop ? Check out this new tool I'm working on : drag-and-drop interactive data visualization