Question

It seems like there should be something shorter than this:

private string LoadFromFile(string path) {    try    {        string fileContents;        using(StreamReader rdr = File.OpenText(path))        {             fileContents = rdr.ReadToEnd();        }         return fileContents;    }    catch    {        throw;    } } 

Answer 1

First of all, the title asks for ‘how to write the contents of strnig to a text file’ but your code example is for ‘how to read the contents of a text file to a string.

Answer to both questions:

using System.IO; ... string filename = 'C:/example.txt'; string content = File.ReadAllText(filename); File.WriteAllText(filename, content); 

See also ReadAllLines/WriteAllLines and ReadAllBytes/WriteAllBytes if instead of a string you want a string array or byte array.