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passing string value to double array c#

I currently have a application that reads back the contents of the text file in a string. I want to put all those values in a double array I have created but can't seem to get it to work here is my code :

using (StreamReader sr = new StreamReader("test.txt"))
{
    String line =  sr.ReadToEnd();
    x = doubles;
    Console.WriteLine(x);
}

Everytime I run it I get the error "file could not be read: input string was not in a correct format" Does anyone have any idea whats wrong?

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bool bSuccess;
double value;
bSuccess = double.TryParse("3.14", out value);

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