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Showing posts from August, 2020

How Dependency Injection Containers Work in C#?

Dependency Injection (DI) containers, such as Unity or DryIoc, help manage the creation and lifetime of object dependencies in C#. They facilitate the Inversion of Control (IoC) principle, allowing you to focus on writing clean, maintainable code without worrying about the complexities of instantiating dependencies manually. How DI Containers Work? Registration:  You define which concrete classes should be used to fulfill specific interface contracts. This allows the DI container to know what to instantiate when a class requests a particular dependency. Resolution:  When an instance of a class is requested, the DI container looks at the registered services, resolves the dependencies, and creates the object with the required dependencies injected. Lifetime Management:  The container manages the lifecycle of the dependencies. You can specify whether instances should be singleton (one instance for the entire application), transient (a new instance each time), or scoped (one ...

How to Import/Export data of DataGrid from/to CSV file in wpf using MVVM

In this post i will explain how to Import/Export data of DataGrid from/to CSV file in wpf using MVVM To Import CSV to DataGrid i have created method called LoadCSV() which will load CSV data and update the DataGrid  private void LoadCSV()         {             LstEmployees.AddRange(File.ReadAllLines("csvFilePath")                                          .Skip(1)                                          .Select(v => CsvToEmployees(v))                                          .ToList());         }          In LoadCSV() method i am first reading the CSV using File cla...

Multiple ways to handle Checked/Unchecked event in wpf using MVVM

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In this post i am trying to explain multiple way to handle Checked/Unchecked event in wpf using MVVM First let's create a view which contains multiple CheckBox.  All CheckBox will handle the Checked/Unchecked event differently.  CheckBoxEx.xaml <Window x:Class="PrismApp.Views.CheckBoxEx"              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"              xmlns:prism="http://prismlibrary.com/"              prism:ViewModelLocator.AutoWireViewModel="True">     <StackPanel >         <CheckBox Content="Bind Command by passing CheckBox as CommandParameter but set command parameter type is object" HorizontalAlignment="Left" VerticalAlignment="Center"  Name="chkObj"            ...