Long sentence

http://yarchive.net/blog/long_sentences.html

Long sentence =>
complicated sentence =>
- Need to remember context
- Not to extend and repeat previsoue idea

Binary tree search logic in pseudo code

  node search (node, key) {
       if node is null then return null;
     
       if node.key = key then
          return node
         
       if key < node then
          return search (node.left, key);
       else
          return search (node.right, key);

Reference:
http://www.codeproject.com/Articles/18976/A-simple-Binary-Search-Tree-written-in-C

How to solve problem "Inheritance security rules violated by type: 'System.Web.WebPages.Razor.WebPageRazorHost'. Derived types must either match the security accessibility of the base type or be less accessible."

How to solve problem "Inheritance security rules violated by type: 'System.Web.WebPages.Razor.WebPageRazorHost'. Derived types must either match the security accessibility of the base type or be less accessible."

This error happens after add Razor engine into ASP.NET MVC 4 project by nuget package.
https://github.com/Antaris/RazorEngine

I fixed this problem by remove following part from web.config
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Razor" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>

Reason:
Default ASP.NET MVC 4 razor engine is version 2, and nuget for RazorEngine project is version 3.

Coding Explained in 25 Profound Comics

https://medium.com/@FreeCodeCamp/coding-explained-in-25-profound-comics-8847ea03819c

Make hard coding your default choice

http://enterprisecraftsmanship.com/2015/06/08/make-hard-coding-your-default-choice/

To my experiences, I divide this kind of  "magic number" into three categories:

#1 Very small chance to change: Hard coding
#2 Good chance to change in the future:
  Hard coding with default value but checking config file first
string ConfigSetting_SMTP_host = ConfigurationManager.AppSettings["SMTP_host"] ?? "google.com";

#3 For sure change (such as dev vs product environment): read from config file directly

How to solve Access is denied problem for a ASP.NET MVC 4 Windows Authentication project

Create a ASP.NET MVC 4 intranet project, and run, get following error:

Access is denied
Description: An error occurred while accessing the resources required to serve this request. The server may not be configured for access to the requested URL.
Error message 401.2.: Unauthorized: Logon failed due to server configuration.  Verify that you have permission to view this directory or page based on the credentials you
supplied and the authentication methods enabled on the Web server.  Contact the Web server's administrator for additional assistance.


Solution:
Press F4 to get project property windows:
Change Anonymous to Disabled
Change Windows Authentication to Enabled.


(Why just publish a correct project template for Windows Authentication in the first place?)