In software engineering, a design pattern is a general reusable solution to a commonly occurring problem in software design. A design pattern is not a finished design that can be transformed directly into code. It is a description or template for how to solve a problem that can be used in many different situations. Object-oriented design patterns typically show relationships and interactions between classes or objects, without specifying the final application classes or objects that are involved. Design pattern (computer science)
Below I have a list of most common design patterns.
Creates an instance of several families of classes
Separates object construction from its representation
Creates an instance of several derived classes
A fully initialized instance to be copied or cloned
A class of which only a single instance can exist
Match interfaces of different classes
Separates an object's interface from its implementation
A tree structure of simple and composite objects
Add responsibilities to objects dynamically
A single class that represents an entire subsystem
A fine-grained instance used for efficient sharing
An object representing another object
A way of passing a request between chains of objects
Encapsulate a command request as an object
A way to include language elements in a program
Sequentially access the elements of a collection
Defines simplified communication between classes
Capture and restore an object's internal state
A way of notifying change to a number of classes
Alter an object's behavior when its state changes
Encapsulates an algorithm inside a class
Defer the exact steps of an algorithm to a subclass
Defines a new operation to a class without change
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
Project file contains ToolsVersion="4.0", which is not supported by this version of MSBuild. Treating the project as if it had ToolsVersion="3.5".
<FileUpgradeFlags>
</FileUpgradeFlags>
<OldToolsVersion>3.5</OldToolsVersion>
<UpgradeBackupLocation />
<PublishUrl>http://localhost/Utilities/</PublishUrl>
<Install>true</Install>
<InstallFrom>Web</InstallFrom>
<UpdateEnabled>true</UpdateEnabled>
<UpdateMode>Foreground</UpdateMode>
<UpdateInterval>7</UpdateInterval>
<UpdateIntervalUnits>Days</UpdateIntervalUnits>
<UpdatePeriodically>false</UpdatePeriodically>
<UpdateRequired>false</UpdateRequired>
<MapFileExtensions>true</MapFileExtensions>
<ApplicationRevision>0</ApplicationRevision>
<ApplicationVersion>1.0.0.%2a</ApplicationVersion>
<IsWebBootstrapper>true</IsWebBootstrapper>
<UseApplicationTrust>false</UseApplicationTrust>
<BootstrapperEnabled>true</BootstrapperEnabled>
<CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
<ItemGroup>
<BootstrapperPackage Include="Microsoft.Net.Client.3.5">
<Visible>False</Visible>
<ProductName>.NET Framework 3.5 SP1 Client Profile</ProductName>
<Install>false</Install>
</BootstrapperPackage>
<BootstrapperPackage Include="Microsoft.Net.Framework.3.5.SP1">
<Visible>False</Visible>
<ProductName>.NET Framework 3.5 SP1</ProductName>
<Install>true</Install>
</BootstrapperPackage>
<BootstrapperPackage Include="Microsoft.VisualBasic.PowerPacks.10.0">
<Visible>False</Visible>
<ProductName>Microsoft Visual Basic PowerPacks 10.0</ProductName>
<Install>true</Install>
</BootstrapperPackage>
<BootstrapperPackage Include="Microsoft.Windows.Installer.3.1">
<Visible>False</Visible>
<ProductName>Windows Installer 3.1</ProductName>
<Install>true</Install>
</BootstrapperPackage>
</ItemGroup>
//create a unity container
IUnityContainer container = new UnityContainer();
//define a function
Func<bool> doThis = delegate
{
Debugger.Break();
return true;
};
//register the function as instance
//function will not execute during registration
container.RegisterInstance(doThis);
//resolve the function from the container
//function will not execute during the resolving
var f = container.Resolve<Func<bool>>();
//will execute here:-)
f();
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