In this source code example, we will demonstrate the usage of String.IndexOf() method in C# with an example.

The C# String.Insert() method is used to insert the specified string at the specified index number. The index number starts from 0. After inserting the specified string, it returns a new modified string.

C# String Insert Method Example

The following example demonstrates the use of the String.Insert() method:

using System;

public class StringDemo
{
    public static void Main(string[] args)
    {
         string s1 = "sourcecodeexamples";
        
         string s2 = s1.Insert(6,".");
         
         string s3 = s2.Insert(11,".");
         
         Console.WriteLine(s3);  
        
    }

}

Output:

source.code.examples

Related C# String Examples

1. C# String Clone Method Example
2. C# String Compare Method Example
3. C# String CompareTo Method Example
4. C# String Concat Method Example
5. C# String Contains Method Example
6. C# String Copy Method Example
7. C# String CopyTo Method Example
8. C# String EndsWith Method Example
9. C# String Equals Method Example
10. C# String GetEnumerator Method Example
11. C# String GetHashCode Method Example
12. C# String IndexOf Method Example
13. C# String Insert Method Example
14. C# String Intern Method Example
15. C# String IsNullOrEmpty Method Example
16. C# String IsNullOrWhiteSpace Method Example
17. C# String LastIndexOf Method Example

References

https://docs.microsoft.com/en-us/dotnet/api/system.string.insert?view=net-6.0