C# Tutorial

C# Tutorial C# First Application C# Variables C# Data Types C# Operators C# Keywords

C# Control Statement

C# If Statements C# Switch Statements C# for Loop C# While Loop C# do While loop C# Jump Statements C# Function C# functions with out variable

C# Arrays

C# Arrays

C# Function

C# Function call by value C# Call by reference C# Passing array to function C# Multidimensional Arrays C# Jagged Arrays C# Params C# Array Class C# Command Line Arguments

C# Object Class

C# Object and Classes C# Constructors C# Destructor C# this Keyword C# static field C# static class C# Static Constructor C# Structs C# enum C# Properties

C# Inheritance

C# Inheritance C# Multilevel Inheritance C# Aggregation C# Member overloading C# Method Overriding C# Base

C# Polymorphism

C# Polymorphism C# Sealed

C# Abstraction

C# Abstraction C# Interface

C# Namespace

C# Namespace C# Access Modifiers C# Encapsulation

C# Strings

C# String

C# Misc

C# Design Patterns Dictionary in C# Boxing and Unboxing in C# Ref and Out in C# Serialization in C# Dispose and Finalize in C# CONSOLE LOG IN C# Get File extension in C# Insert query in c# Difference Between List and Dictionary in C# Getters and Setters in C# Extension Methods in C# Insert query in c# CONSOLE LOG IN C# Get File extension in C# Random.NextDouble() Method in C# Binary Search in C# Difference between Delegates and Interfaces in C# Double.IsFinite() Method in C# Index Constructor in C# Abstraction in C# Basic OOPS Concepts In C# Queue.CopyTo() Method in C# single.compareto() method in C# C# Throw Exception in Constructor DECODE IN C# file.setlastwritetimeutc() method in C# Convert Object to List in C# convert.ToSByte(string, IFormatProvider) Method in C# C# Declare Delegate in Interface console.TreatControl C As Input property in C# Copying the queue elements to 1-D Array in C# Array.Constrainedcopy() Method in C# C# in and out Char.IsLetterOrDigit() method in C# Debugging in C# decimal.compare() method in C# Difference between Console.Read and Console.Readline in C# Metadata in C# C# Event Handler Example Default Interface Methods in C# Difference between hashtable and dictionary in C# C# program to implement IDisposable Interface Encapsulation in C# SortedList.IndexOfVaalue(Object) Method in C# Hash Maps in C# How to clear text files in C# How to Convert xls to xlsx in C# Foreach loop in C# FIFO in C# How to handle null exception in C# Type.Is Instance Of Type() Method in C# How to add data into MySQL database using C# How to use angular js in ASP net Csharp decimal.compare() method in Csharp Difference between Console.Read and Console.Readline in Csharp How to Implement Interface in Csharp char.IsUpper() Method in C# Index Of Any() Method in C# Quantifiers in C# C# program to Get Extension of a Given File C# Error Logging C# ENCRIPTION Can we create an object for Abstract Class in C# Console.CursorVisible in C# SortedDictionary Implementation in C# C# Hash Table with Examples Setting the Location of the Label in c# Collections in c# Virtual Keyword in C# Reverse of string in C# String and StringBuilder in C# Encapsulation in C# SortedList.IndexOfVaalue(Object) Method in C# Hash Maps in C# How to clear text files in C# How to Convert xls to xlsx in C# Foreach loop in C# FIFO in C# How to handle null exception in C# Type.Is Instance Of Type() Method in C# How to add data into MySQL database using C# How to use angular js in ASP net Csharp decimal.compare() method in Csharp Difference between Console.Read and Console.Readline in Csharp How to Implement Interface in Csharp char.IsUpper() Method in C# Index Of Any() Method in C# Quantifiers in C# C# program to Get Extension of a Given File Difference between ref and out in C# Singleton Class in C# Const And Readonly In Csharp BinaryReader and BinaryWriter in C# C# Attributes C# Delegates DirectoryInfo Class in C# Export and Import Excel Data in C# File Class in C# FileInfo Class in C# How to Cancel Parallel Operations in C#? Maximum Degree of Parallelism in C# Parallel Foreach Loop in C# Parallel Invoke in C# StreamReader and StreamWriter in C# TextReader and TextWriter in C# AsQueryable() in C# Basic Database Operations Using C# C# Anonymous Methods C# Events C# Generics C# Indexers C# Multidimensional Indexers C# Multithreading C# New Features C# Overloading of Indexers Difference between delegates and events in C# Operator overloading in C# Filter table in C# C# Queue with Examples C# Sortedlist With Examples C# Stack with Examples C# Unsafe Code File Handling in C# HashSet in C# with Examples List Implementation in C# SortedSet in C# with Examples C# in Depth Delegates and Events in C# Finally Block in C# How to Split String in C# Loggers in C# Nullable Types in C# REVERSE A STRING IN C# TYPE CASTING IN C# What is Generics in C# ABSTRACT CLASS IN C# Application of pointer in C# Await in c# READONLY AND CONSTANT IN C# Type safe in C# Types of Variables in c# Use of delegates in c# ABSTRACT CLASS IN C# Application of pointer in C# Await in c# READONLY AND CONSTANT IN C# Type safe in C# Types of Variables in c# Use of delegates in c# ABSTRACT CLASS IN C# Application of pointer in C# Await in c# READONLY AND CONSTANT IN C# Type safe in C# Types of Variables in c# Use of delegates in c# Atomic Methods Thread Safety and Race Conditions in C# Parallel LINQ in C# Design Principles in C# Difference Between Struct And Class In C# Difference between Abstraction and Encapsulation in C# Escape Sequence Characters in C# What is IOC in C# Multiple Catch blocks in C# Appdomain in C# Call back methods in C# Change Datetime format in C# Declare String array in C# Default Access Specifier in c# Foreach in LINQ C# How to compare two lists in C# How to Convert String to Datetime in c# How to get only Date from DateTime in C# Ispostback in asp net C# JSON OBJECT IN C# JSON STRINGIFY IN C# LAMBDA FUNCTION IN C# LINQ Lambda Expression in C# Microservices in C# MSIL IN C# Reference parameter in C# Shadowing(Method hiding) in C# Solid principles in C# Static Members in C# Task run in C# Transaction scope in C# Type Conversion in c# Unit of Work in C# Unit Test Cases in c# User Defined Exception in c# Using Keyword in C# Var Keyword in C# What is gac in C#

How to clear text files in C#
2024-05-29 06:33:57

How to clear text files in C#

Essentially, a file is a container for data. One of the most significant and basic types of files is a text file, which stores data in text format.

A Text File: What Is It?

Any file containing textual data is called a text file. This is helpful for both software and human systems and is used to store and exchange textual data. Typically, text files employ basic character encodings like ASCII and UTF-8. Text is composed of all lowercase letters and numbers.

Text files cannot be executed. They can be recognized by their colourful type of extension (.txt,.csv,.html,.xml,.py,.log, etc.) connected with their type. Certain programming problems require the writing of software codes as text files before they can be executed. For instance, the code for a web page must first be produced as a text file with the .html extension.

Ways to Open Text Documents?

OS determines how to open a text document. Open as a text file functionality is also available for files without any textual content.

  • To open a text file as an icon, simply perform right-click on its icon on Windows and choose the "Open as text file" option.
  • In Mac OS, you right-click on the icon and choose the text editor to open a text file. Using the techniques above, you can open any text file, including ones without text.

It's frequently important to eliminate unnecessary or out-of-date info while working with C# files. Using the File class from the System.IO namespace, C# offers a simple method for completing this basic file management activity, making it efficient at deleting files.

There are a few crucial steps in the process:

  1. Verify File Existence: To avoid mistakes, it's a good idea to make sure a file exists before removing it. The File is available for use. By using an existing method and providing the file path as an argument, this check guarantees a smooth deletion procedure and avoids errors that could arise from missing files.
  2. Delete the File: Once the File has been verified as existing, you can use the File. Delete function. Giving the complete file path—that is, the directory and the file name—provides explicit guidance on how to locate and remove the desired File when doing C# delete files actions.
  3. Managing Exceptions: It's critical to foresee and address any mistakes that can arise when deleting data, such as missing files or illegal access. Use a try-catch block to gracefully manage these scenarios by enclosing the deletion process.
using System;

using System.IO;

class Program

{

    static void Main()

    {

        string targetFileName = "fileToDelete.txt";

        try

        {

            File.WriteAllText(targetFileName, "This file's content is an example.");

            Console.WriteLine($"Contents of {targetFileName}:");

            Console.WriteLine(File.ReadAllText(targetFileName));

            if (File.Exists(targetFileName))

            {

                File.Delete(targetFileName);

                Console.WriteLine("File deleted successfully.");

            }

            else

            {

                Console.WriteLine("File does not exist.");

            }

        }

        catch (Exception ex)

        {

            Console.WriteLine("Error " + ex.Message);

        }

    }

}

There are numerous formats for text files. The most popular extensions are ".txt" for Windows OS and ".text" for MacOS, while there are numerous others, like .html, .py, .xml, .js, and .java.

Exceptions:

  1. ArgumentException: According to InvalidPathChars, the path is either zero-length, entirely made up of white space, or contains one or more invalid characters.
  2. ArgumentNullException: There is nothing on the route.
  3. DirectoryNotFoundException: There is an error in the path provided.
  4. IOException: There is a file open. OR the operating system is Windows XP or older, and there is an open handle on the File. A directory and file enumeration may produce this open handle. See How to Enumerate Directories and Files for additional details.
  5. NotSupportedException: An incorrect format is used for the path.
  6. PathTooLongException: This occurs when a path, file name, or both are longer than the maximum length allowed by the system.
  7. UnauthorizedAccessException: The caller is not authorized to be in this domain. OR the File is currently used as an executable file. OR there is a directory at the path. OR a read-only file was supplied by the path.

Summary

By using the File.Delete () method, which is available from the System.IO namespace, C# deletes files by streamlining the procedure. This procedure makes eliminating files from the file system easier. Using the syntax File.Delete(string path): You can delete a file in C# by providing the full path, including the file name.  In order to guarantee a seamless file deletion in C#, managing exceptions such as IOException and UnauthorizedAccessException is an essential stage in the file deletion process.  In C#, make sure a file exists before deleting it by using File.Exists() to avoid careless mistakes. One way to improve the C# delete files procedure is to show the content or verify that the File exists before deleting it.