logo
down
shadow

How to use C# extension methods with SmartFormat reflection syntax?


How to use C# extension methods with SmartFormat reflection syntax?

By : Javi LM
Date : November 19 2020, 12:41 AM
seems to work fine Short answer
It is currently not possible to call extension methods inside SmartFormat formatting braces.
code :
Smart.Format("{Name.ToUpper} is my name", ps).Dump();
Smart.Format("{0} is my name", ps["Name"].Foo()).Dump();


Share : facebook icon twitter icon
Extension methods syntax vs query syntax

Extension methods syntax vs query syntax


By : Uri
Date : March 29 2020, 07:55 AM
hope this fix your issue Honestly, sometimes it can be situational once you start using Funcs and Actions. Say you are using these three funcs:
code :
  Func<DataClasses.User, String> userName = user => user.UserName;
  Func<DataClasses.User, Boolean> userIDOverTen = user => user.UserID < 10;
  Func<DataClasses.User, Boolean> userIDUnderTen = user => user.UserID > 10;
  var userList = 
    from user in userList
    where userIDOverTen(user)
    select userName;
  var otherList =
    userList
    .Where(IDIsBelowNumber)
    .Select(userName)
  private Boolean IDIsBelowNumber(DataClasses.User user, 
          Int32 someNumber, Boolean doSomething)
  {
    return user.UserID < someNumber;
  }
  var completeList =
     from user in userList
     where IDIsBelowNumber(user, 10, true)
     select userName;
  var otherList =
    userList
    .Where(IDIsBelowNumber????)
    .Select(userName)
   private Func<DataClasses.User, Boolean> IDIsBelowNumberFunc(Int32 number)
   {
      return user => IDIsBelowNumber(user, number, true);
   }
  var otherList =
     userList
     .Where(IDIsBelowNumberFunc(10))
     .Select(userName)
Reflection to Identify Extension Methods

Reflection to Identify Extension Methods


By : camt
Date : March 29 2020, 07:55 AM
I wish this helpful for you You have to look in all the assemblies where the extension method may be defined.
Look for classes decorated with ExtensionAttribute, and then methods within that class which are also decorated with ExtensionAttribute. Then check the type of the first parameter to see if it matches the type you're interested in.
code :
using System;
using System.Runtime.CompilerServices;
using System.Reflection;
using System.Linq;
using System.Collections.Generic;

public static class FirstExtensions
{
    public static void Foo(this string x) {}
    public static void Bar(string x) {} // Not an ext. method
    public static void Baz(this int x) {} // Not on string
}

public static class SecondExtensions
{
    public static void Quux(this string x) {}
}

public class Test
{
    static void Main()
    {
        Assembly thisAssembly = typeof(Test).Assembly;
        foreach (MethodInfo method in GetExtensionMethods(thisAssembly,
            typeof(string)))
        {
            Console.WriteLine(method);
        }
    }

    static IEnumerable<MethodInfo> GetExtensionMethods(Assembly assembly,
        Type extendedType)
    {
        var query = from type in assembly.GetTypes()
                    where type.IsSealed && !type.IsGenericType && !type.IsNested
                    from method in type.GetMethods(BindingFlags.Static
                        | BindingFlags.Public | BindingFlags.NonPublic)
                    where method.IsDefined(typeof(ExtensionAttribute), false)
                    where method.GetParameters()[0].ParameterType == extendedType
                    select method;
        return query;
    }
}
Translate Query Syntax to Extension Methods Syntax

Translate Query Syntax to Extension Methods Syntax


By : Abhishek Singh
Date : March 29 2020, 07:55 AM
seems to work fine Below I'll answer your question exactly. However, I don't really see why you would want to have your query translated to extension methods, so I think this answer is not the answer you're looking for. If so, could you dive into the terminology and rephrase the question?
code :
return (from person in this.context.Persons
        from email in this.context.EmailAddresses
        where email.EmailAddress == emailAddress
        select person).FirstOrDefault();
return this.context.Persons
    .SelectMany(p => this.context.EmailAddresses,
        (p, e) => new { Person = p, Email = e})
    .Where(pe => pe.Email == pe.Person)
    .Select(pe => pe.Person)
    .FirstOrDefault();
Why are Reflection's GetProperty() or GetField() not instance or extension methods?

Why are Reflection's GetProperty() or GetField() not instance or extension methods?


By : Rakesh
Date : March 29 2020, 07:55 AM
I wish did fix the issue.
To get an instance field, you have to do typeof(MyClass).GetField("fieldName").GetValue(myClassInstance). Which is not the most straightforward thing.
code :
((dynamic)myClassInstance).fieldName
VB.NET syntax and string Extension Methods

VB.NET syntax and string Extension Methods


By : jack
Date : March 29 2020, 07:55 AM
wish of those help I can confirm this is indeed a “bug” (tested in Visual Studio 2008). But in fact, it’s by design in VB and won’t be changed.
However, I’d like to take the time to explain why this is a horrible question. Sorry Serhio.
Related Posts Related Posts :
  • Accessing Settings in different ways
  • "This project is empty" error in Sonarqube
  • How to create reusable icon menu in Xamarin
  • Value Cannot be null in Ado.Net connectivity
  • Adding a custom/dynamic attribute when using XSD.exe
  • How to convert object to correct type
  • Automatically sign out from Forms Authentication in ASP.NET when browser is closed
  • Can a WCF service support both Buffered and Streamed transfer modes?
  • Verify a CA Certificate with a public key in C#
  • How to invoke a Web Service that requires the "patch" verb using the C# WebClient wrapper?
  • Proper way a implementing property based on generic type
  • Closing a form that is created in another thread
  • How Can You Bind a List<String> to a StackPanel
  • WPF Application Update Best Practices - Architectural Explanation
  • System.UnauthorizedAccessException in Server.MapPath()
  • Connecting and Using SQL Compact Edition in a WPF application
  • C#: weird ref in constructor to behave like "virtual field"
  • C# XDocument Load with multiple roots
  • How to decide what goes in the Domain or Application Project in a "DDD" solution?
  • How to get/set a property of an interface that is not always implemented
  • Read-only array field in unsafe struct
  • i got "Invalid attempt to call Read when reader is closed" when using sqldatareader how to solve it in a three
  • Why should I encapsulate objects in using if there is garbage collection
  • How to load Word document from byte array
  • Caliburn.Micro and ContextMenu for DataGrid Row
  • Linq "join" with a IList<T> getting "Error Unable to create a constant value.."
  • How to draw red wavy line under words in RichTextBox c# winform
  • HttpPostedFileBase returns Null MVC3
  • Refresh Dropdownlist in webform
  • How to convert serialized byte array back to its text form
  • How to do a loop to check all the variables at the same time for C#?
  • Facebook Sentiment Analysis API
  • Counting occurrences of specific letters in string
  • Module 'System.Data.Linq' Version=4.0.0.0, Culture=neutral, Publickeytoken=b77a5c561934e089' should be referenced
  • C# MVC Dynamically create view model
  • Get Executing Path of C# application when using nunit with Jenkins
  • GDI count stable near 100 but Handle count keep increasing
  • Problem adding string value to ViewBag from an MVC Action using TempData
  • Reading Excel file on condition
  • what is windows programming from C++, C# and Java perspective?
  • How to deal with C# object references in MongoDB?
  • How to create a list from filtering 2 lists with linq to object
  • Webclient calls to DownloadString cause my app to freeze
  • How to create a JSON WebService in c# ASP.Net with a valid JSON output and query with JQuery/Ajax
  • Submit button not working as expected
  • MvcSitemapProvider parameters sometimes works sometimes not
  • Console application doesn't obey Thread.Join
  • System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
  • Creating a scripting environment for a C# program
  • Is it reasonable to replace .Equals with a method rather than override it?
  • How I can capture multiple keys?
  • How to have all my classes default functionalities like .ToString method
  • Business Object properties: model as Objects or Enums?
  • Loading this assembly would produce a different grant set from other instances
  • How to call a method without first calling it's constructor in C#
  • Can't set a date time in one of my entity framework objects, says NullReferenceException
  • GETJob() Win32 Print spooler api 64bit The parameter is incorrect, how to fix?
  • Switch Case Causing Trouble In Going To A particular Function
  • Switch Case Calling A Function Based On The User's Choice
  • Accessing WebBrowser on different Threads
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org