Stream Textreader to a File
I Have a Textreader Object. Now, I Want to Stream the Whole Content of the Textreader to a File. I Cannot Use Readtoend() and Write All to a File at Once...
I have a TextReader object.
Now, I want to stream the whole content of the TextReader to a File. I cannot use ReadToEnd() and write all to a file at once, because the content can be of high size.
Can someone give me a sample/tip how to do this in Blocks?
3 Answers
using (var textReader = File.OpenText("input.txt"))
using (var writer = File.CreateText("output.txt"))
{
do
{
string line = textReader.ReadLine();
writer.WriteLine(line);
} while (!textReader.EndOfStream);
}
Something like this. Loop through the reader until it returns null and do your work. Once done, close it.
String line;
try
{
line = txtrdr.ReadLine(); //call ReadLine on reader to read each line
while (line != null) //loop through the reader and do the write
{
Console.WriteLine(line);
line = txtrdr.ReadLine();
}
}
catch(Exception e)
{
// Do whatever needed
}
finally
{
if(txtrdr != null)
txtrdr.Close(); //close once done
}
Use TextReader.ReadLine:
// assuming stream is your TextReader
using (stream)
using (StreamWriter sw = File.CreateText(@"FileLocation"))
{
while (!stream.EndOfStream)
{
var line = stream.ReadLine();
sw.WriteLine(line);
}
}
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