remove substring from string c# code example

Example 1: remove all text after string c#

string input = "text?here";
int index = input.LastIndexOf("?"); // Character to remove "?"
if (index > 0)
    input = input.Substring(0, index); // This will remove all text after character ?

Example 2: c# remove character from string at index

string s = "This is string";
s = s.Remove(2, 1);
//Output: Ths is string


string s = "This is string";
s = s.Remove(2, 2);
//Output: Th is string

Example 3: c# Remove String In C#

//The following example removes all characters from a string that are after 25th position in the string.

string founder = "Mahesh Chand is a founder of C# Corner";  
// Remove all characters after first 25 chars  
string first25 = founder.Remove(25);  
Console.WriteLine(first25);  
//************************************   ^_*
//The following example removes 12 characters from the 10th position in the string.

// Remove characters start at the 10th position, next 12 characters  
String newStr = founder.Remove(10, 12);  
Console.WriteLine(newStr);