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In C#, there are different ways to detemine the type of an object or type itself. These include typeof, GetType and Is. We would use typeof if we are trying to determine the type of a class, interface, array, enum etc. Typeof does not accept variables as a parameter. This is specified at compile time. If we are trying to determine the type of a variable, we would use GetType. … Continue reading C# – TypeOf, GetType, Is
Abstract classes are a type of class in C# that contains a base class implementation. The abstract class is not instantiated, and are inherited by subclasses to provide a detailed implementation. Consider the example below. We have an abtract class called Vehicle in our console app. We try to create an instance of the abtract class Vehicle: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Carl.AbstractClass { … Continue reading Abstract Classes in C#
LINQ, or Language Integrated Query, is a query language in the .NET Framework. LINQ is useful in that you could have several different data sources you are working with within Visual Studio, and LINQ provides a way to query data uniformly. Examples include SQL, Objects, ADO.NET, Entity Framework etc. Here we will go through examples of using LINQ. Firstly, to use LINQ, you add the namespace: using System.Linq; Let’s say … Continue reading Linq and Lambda in C#
Anonymous functions in C# are basically functions without a name that can be used in different situations. Let’s take a look at some examples. When looking at delegates, we saw how to pass delegate functions as parameters. With anonymous functions, we can define the delegate and then pass an anonymous function to it. In the example below, we are creating a delegate and then creating the anonymous function code, then … Continue reading Anonymous Functions in C#
Delegates in C# hold a reference to a method. If you think about writing methods, you may generally send parameters such as objects/type variables to the method. At times, you may want to send an actual method as a parameter to another method. Delegates are like a placeholder for methods. Let’s go through an example. Let’s say we have a list of customers that are based on different cities. Customer c1 … Continue reading C# Delegates
Generics in the .NET Framwork allow you to work with generic types without having to specify a data type until the class is instantiated. Generics are useful, in that you may have a class that you don’t want to limit the functionality to a certain data type. For example, you may have a class that can compare 2 integers, or it could also compare 2 strings. Instead of creating 2 … Continue reading Generics and T in C#
The .NET Framework contains different types of collections that can be used to store and retrieve data. In this post we will look at the different types. Collections consist of: Queue Stack ArrayList List LinkedList Dictionary Each collection type has different benefits. Collections in the .NET Framework are in: System.Collections System.Collections.Generic Queue A queue is a FIFO (first in first out) list. You can think of this as like a … Continue reading Collections in C#
Dynamics GP has a Trial Balance report you can run. To run the report, go to Reports->Financial->Trial Balance: This will open a window where you will have different options on reports to run: Select Detailed->Demo and Modify and it will open the window below: You have the ability to specify which what to include, the year, sorting etc. I have selected Start and End of Fiscal Year as the date range. Select … Continue reading Dynamics GP Trial Balance
When connecting to Dynamics 365 from code, you can retrieve records of an entity through RetrieveMultiple. When using RetrieveMultiple, you specify the columns you would like to retrieve using a ColumnSet. Either specify the columns like this: ColumnSet columnSet = new ColumnSet(“name”, “opportunityid”, “parentaccountid”); Or retrieve all columns like this: ColumnSet columnSet = new ColumnSet(true); In some cases, the columns retrieved will be an Id. For example, when retrieving Opportunities, … Continue reading Dynamics 365 Using EntityReference to Get Name from Id
The purpose of Interfaces in C# is to define a contract. Any class that then implements the interface will know which methods it needs to have. An interface is like an abstract class, but without any implementation. Let’s look at an example. Let’s say we have a Vehicle interface, like below. A Vehicle will have wheels. If this were an abstract class, we could define the implementation of HowManyWheels, for … Continue reading C# Interfaces