Data

MFC Controls Overview

A tour of MFC's C++ wrapper classes for Windows common controls, how to bind them via DDX_Control, and practical examples with CListCtrl and CComboBox.

Silverlight Data Binding

How the Binding markup extension connects XAML UI elements to CLR objects, with INotifyPropertyChanged, converters, and validation driving live, two-way update…

Data Binding Fundamentals

Learn how WPF connects UI elements to data sources through the Binding object, DataContext, and the {Binding} markup extension, eliminating manual UI-update co…

Data Templates

How DataTemplate lets WPF turn plain view-model objects into rich, reusable visual trees — the backbone of MVVM-driven UIs.

Data Binding Fundamentals

Learn how data binding connects UI elements to underlying data sources so views update automatically without manual synchronization code.

What Is MVVM?

An introduction to the Model-View-ViewModel pattern and how data binding connects its three layers.

Data Contracts

How WCF uses [DataContract] and [DataMember] to define the exact wire shape of types exchanged between services and clients.

WCF Data Services

Introduces WCF Data Services (formerly ADO.NET Data Services) for automatically exposing an Entity Framework model as a queryable OData feed.

Data Binding in Web Forms

Understand how Web Forms server controls bind to data sources, the difference between declarative and programmatic binding, and when to use Repeater, GridView,…

Data Controls: GridView and Repeater

Learn how ASP.NET Web Forms renders bound data using the feature-rich GridView control and the fully customizable Repeater control.

Data Annotations and Validation

How to use Data Annotation attributes to declaratively validate model properties, and how MVC surfaces those rules on both server and client.

Forms, Views, and Charts

Understand how Model-Driven Apps present Dataverse data through configurable forms, views, and charts.

Power Fx Basics

Power Fx is the Excel-like, declarative formula language that powers every property, button, and calculation in a Power Apps canvas app.

Data Annotations vs Fluent API

Compare EF Core's two configuration approaches - inline Data Annotations and the more powerful Fluent API - and learn when each is the right tool.

Seeding Data

Techniques for populating a database with initial or reference data using EF Core, from model-based HasData to imperative startup seeding.

Data Annotations Validation

Use System.ComponentModel.DataAnnotations attributes with DataAnnotationsValidator and ValidationSummary or ValidationMessage to validate Blazor forms.

Data Binding with @bind

Master Blazor's @bind directive for two-way data binding between UI elements and component state, including custom binding events and culture-aware format stri…

Chaining Requests with Extracted Data

How to pass data from one Postman request's response into the next request by extracting values in a test script and storing them as variables.

Dynamic Variables and Faker Data

How to use Postman's built-in dynamic variables like {{$guid}} and {{$randomEmail}} to generate realistic fake data on every request.

Parameterizing Requests with CSV Data

Use the CSV Data Set Config element to drive requests with varied, realistic test data instead of hardcoded values, avoiding caching and duplicate-key artifact…

Data-Driven Testing

Learn how to separate test logic from input data in Selenium frameworks using TestNG's @DataProvider and JUnit 5's @ParameterizedTest.

Fixtures for Test Data

Learn how Cypress fixtures store reusable static test data as JSON files and how to load them into stubs, requests, and assertions.

Reading and Writing Data Sources

Learn how Spark's DataFrameReader and DataFrameWriter APIs handle formats like Parquet, CSV, and JDBC, plus schema handling and partitioned writes.

Schemas and Data Types

How Spark defines DataFrame structure with StructType schemas and a rich type system, and why explicit schemas matter in production.

Kotlin Cheat Sheet

Kotlin syntax, null safety, data classes, coroutines, and extension functions for concise, safe JVM development.

C# Blazor Basics Cheat Sheet

Covers Blazor component syntax, data binding, render modes (Server/WebAssembly/Auto), parameters, and component lifecycle for .NET 8+.

Data Lakehouse Concepts Cheat Sheet

Understand lakehouse architecture combining data lake storage with warehouse guarantees via Delta Lake, Iceberg, and Hudi table formats.

Snowflake SQL Cheat Sheet

Snowflake SQL and warehouse management covering virtual warehouses, semi-structured data, time travel, and Snowpark basics.