how to overwrite data in a txt file? [duplicate]

Question

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Can any one tell why the previous data is still displayed while saving data using StreamWriter

I have WPF C# application, that reads and writes to a .txt file, i know how to write line but line, but how do I overwrite the text that is already the file. This is what I have just to write to the next line of the text file, but I want to over the lines not just write to the next line, thanks.

using (StreamWriter newTask = new StreamWriter("test.txt", true))  {     newTask.WriteLine(name[i].ToString());     } 

Answer 1

You need to change the second parameter to false:

using (StreamWriter newTask = new StreamWriter("test.txt", false)){          newTask.WriteLine(name[i].ToString()); }