TheDeveloperBlog.com

Home | Contact Us

C-Sharp | Java | Python | Swift | GO | WPF | Ruby | Scala | F# | JavaScript | SQL | PHP | Angular | HTML

<< Back to C-SHARP

C# StringBuilder AppendFormat

Use the AppendFormat method to append complex data to a StringBuilder.
AppendFormat is available on StringBuilder. With it we append different kinds of data—including string literals—to an underlying string buffer. With it we create code that is clearer to read and modify. It handles formatting strings.StringBuilder
Example. This first example shows how to use a string literal to generate sentences in your StringBuilder. You can put parenthesis around values, which would be more confusing syntactically if you were to use string concatenation.

Tip: The core reason to use AppendFormat here is for clarity of the resulting code. It is clear to see what string data will be generated.

string.Concat
C# program that uses AppendFormat using System; using System.Text; class Program { static void Main() { StringBuilder builder = new StringBuilder(); string[] data = { "Dot", "Net", "Perls" }; int counter = 0; foreach (string value in data) { builder.AppendFormat("You have visited {0} ({1}).\n", value, ++counter); } Console.WriteLine(builder); } } Output You have visited Dot (1). You have visited Net (2). You have visited Perls (3).
Example 2. Here we use the AppendFormat method on the StringBuilder type. Format strings in the C# language are a powerful of simplifying string changes for display. The AppendFormat method uses the same syntax.

Also: There are many advanced rules for string formatting, which are not covered in this document.

string.Format
C# program that uses AppendFormat with ints using System; using System.Text; class Program { static int[] _v = new int[] { 1, 4, 6 }; static void Main() { StringBuilder b = new StringBuilder(); foreach (int v in _v) { b.AppendFormat("int: {0:0.0}{1}", v, Environment.NewLine); } Console.WriteLine(b.ToString()); } } Output int: 1.0 int: 4.0 int: 6.0
Summary. The StringBuilder AppendFormat method is useful for generating text based on a pattern. The method receives a variable number of arguments. We specified new lines in the AppendFormat method in both examples.

Note: For optimal code clarity, the AppendFormat method is ideal. It is not ideal for performance.

© TheDeveloperBlog.com
The Dev Codes

Related Links:

.Net

.NET Array Dictionary List String 2D Async DataTable Dates DateTime Enum File For Foreach Format IEnumerable If IndexOf Lambda LINQ Parse Path Process Property Regex Replace Sort Split Static StringBuilder Substring Switch Tuple

Java

Core Array ArrayList HashMap String 2D Cast Character Console Deque Duplicates File For Format HashSet If IndexOf Lambda Math ParseInt Process Random Regex Replace Sort Split StringBuilder Substring Switch Vector While

Related Links

Adjectives Ado Ai Android Angular Antonyms Apache Articles Asp Autocad Automata Aws Azure Basic Binary Bitcoin Blockchain C Cassandra Change Coa Computer Control Cpp Create Creating C-Sharp Cyber Daa Data Dbms Deletion Devops Difference Discrete Es6 Ethical Examples Features Firebase Flutter Fs Git Go Hbase History Hive Hiveql How Html Idioms Insertion Installing Ios Java Joomla Js Kafka Kali Laravel Logical Machine Matlab Matrix Mongodb Mysql One Opencv Oracle Ordering Os Pandas Php Pig Pl Postgresql Powershell Prepositions Program Python React Ruby Scala Selecting Selenium Sentence Seo Sharepoint Software Spellings Spotting Spring Sql Sqlite Sqoop Svn Swift Synonyms Talend Testng Types Uml Unity Vbnet Verbal Webdriver What Wpf