Notes on software and the ideas behind it
Find the meaning
behind the code.
I’m Fred Yang. I write about software—how it works, why it behaves the way it does, and the ideas that make code easier to reason about.
Open the notebookWorking notes / 2026
Recently mapped
Architecture, reactivity, and the hidden relationships that shape frontend systems.
SharePoint
Deploy a custom master template
SharePoint
Delegation Controls
WSS introduces a powerful new extensibility mechanism known as delegate controls. In some ways, a delegate control is similar to a named placeholder because it defines a region inside a master page that can...
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SharePoint
Instructing a user control is safe
You can instructing a user control that is safe.
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SharePoint
Safe Mode Processing
The uncustomized site page is using a file in file system, and they are executed in compiled mode, so the security is more lex. When it is customized the pages is saved in database,...
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SharePoint
Customized Site Page
A customized site page should be compatible with sharepoint designer, like the following.
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