updated files

Author: xanthium-enterprises

Source_Codes_Only/CreateCSVFile.cs

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+using System;
+using System.Text;
+
+namespace CSV_TextFile_Read_Write
+{
+    class CSVTextFileCreator
+    {
+        public static void Main()
+        {
+            try
+            {
+                // Using StreamWriter to create and write to a file
+                using (StreamWriter fwriter = new StreamWriter("CSVFileName.csv", true)) //true opens the file in append mode 
+                {
+                    fwriter.WriteLine("Text to be written to the file "); // write the header text to file
+                }
+            }
+            catch (Exception Ex)
+            {
+                Console.WriteLine($"An error occurred: {Ex.Message}");
+            }
+        }//end of main()
+    }//end of class
+}//end of namespace
+

Source_Codes_Only/ReadCSVFile.cs

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+
+// reads from a CSV file 
+// www.xanthium.in
+
+using System;
+using System.Reflection.PortableExecutable;
+using System.Text;
+
+
+namespace CSV_TextFile_Read_Write
+{
+    class ReadCSVFilefromDisk
+    {
+        public static void Main()
+        {
+           
+            string CSVFileName = "CSVTextFile.csv";  // Name of the file to be created
+
+            //Read data from CSV file
+            try
+            {
+                using (StreamReader CSVReader = new StreamReader(CSVFileName))
+                {
+                    string line;
+                    while ((line = CSVReader.ReadLine()) != null)
+                    {
+                        Console.WriteLine(line);
+
+                        string[] individualchar = line.Split(",");
+                        foreach(string c in individualchar)
+                        {
+                            Console.Write($"{c} ");
+                        }
+
+                        Console.WriteLine();
+                    }
+                }
+            }
+            
+
+            catch (Exception Ex)
+            {
+                Console.WriteLine($"An error occurred: {Ex.Message}");
+            }
+        }
+
+
+    }
+}

Source_Codes_Only/ReadWriteTextFile.cs

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+
+// code to create a text file, write some data to it and read back the data 
+
+
+using System;
+using System.Text;
+
+namespace FileOperations
+{
+    class FileReadWrite
+    {
+        public static void Main()
+        {
+            string filename = "MyTextFile.txt";
+
+            string[] TexttoWrite = { "first line", 
+                                     "second line",
+                                     "third line " };
+
+            try
+            {
+                // Using StreamWriter to create and write to a file
+                using (StreamWriter fwriter = new StreamWriter(filename, true)) //true opens the file in append mode 
+                {
+                    foreach (string line in TexttoWrite)
+                    {
+                        fwriter.WriteLine(line);
+                    }
+                }
+            }
+
+            catch(Exception Ex)
+            {
+                Console.WriteLine($"An error occurred: {Ex.Message}");
+            }
+
+
+            // Using StreamReader to read line by line 
+            using (StreamReader freader = new StreamReader(filename))
+            {
+                string line;
+                while((line = freader.ReadLine()) != null )
+                {
+                    Console.WriteLine(line);
+                }
+            }
+
+        }
+    }
+    
+}

Source_Codes_Only/WriteCSVDataToFile.cs

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+
+// Writes the data present in a 2D array  to a CSV text file on the disk 
+// www.xanthium.in
+
+using System;
+using System.Text;
+
+
+namespace CSV_TextFile_Read_Write
+{
+    class WriteCSVDataToFile
+    {
+        public static void Main()
+        {
+            //CSVfile creation parameters
+            string SeperatorCharacter = ",";                // Comma Seperated file
+            string CSVFileName        = "CSVTextFile.csv";  // Name of the file to be created
+
+            string[] CSVHeaderTextArray = { "No", "Name", "Age", "Address" }; //CSV header data
+
+            //CSV data to be stored
+            string[,] CSVDataArray = {
+                                   { "1", "Alice", "30", "123 Main St, New York" },
+                                   { "2", "Bob", "25", "456 Elm St, Los Angeles" },
+                                   { "3", "Charlie", "35", "789 Oak St, Chicago" },
+                                   { "4", "David", "40", "321 Pine St, Houston"  },
+                                   { "5", "Eve", "28", "654 Maple St, Seattle" }
+                                };
+
+            string CSVHeaderText = string.Join(SeperatorCharacter, CSVHeaderTextArray); // join the header text with seperator
+                                  
+
+           // Console.WriteLine(CSVHeaderText);
+           // Console.WriteLine($"Number of Rows    {CSVDataArray.GetLength(0)} "); // Number of rows
+           // Console.WriteLine($"Number of Columns {CSVDataArray.GetLength(1)} "); // Number of column
+
+
+            //create and write data into the CSV file
+            try
+            {
+                // Using StreamWriter to create and write to a file
+                // using (StreamWriter fwriter = new StreamWriter(CSVFileName, true)) //true opens the file in append mode,true is optional
+               
+                using (StreamWriter fwriter = new StreamWriter(CSVFileName)) //file created fresh everytime ,previous data destroyed
+                {
+                    fwriter.WriteLine(CSVHeaderText); // write the header text to file
+
+                    // Write 
+                    for (int i = 0; i < CSVDataArray.GetLength(0); i++)
+                    {
+                        StringBuilder sb = new StringBuilder(); // create a string builder object 
+
+                        for (int j = 0; j < CSVDataArray.GetLength(1); j++)
+                        {
+                            
+                            sb.Append(CSVDataArray[i, j]); // append the character 
+                            sb.Append(SeperatorCharacter); // append the comma 
+                        }
+
+                        sb.Length--;                          //remove the trailing comma,  1,Alice,30,123 Main St, New York,<- trailing comma
+                        fwriter.WriteLine(sb.ToString());     //Write data to file
+
+                        //Console.WriteLine(sb.ToString());
+                    }//end of internal for loop
+                }//end of using
+            }//end of try
+
+            catch (Exception Ex)
+            {
+                Console.WriteLine($"An error occurred: {Ex.Message}");
+            }
+        }
+
+
+    }
+}