Stream Writer, Buffer

Experts,

I need some direction in writing files. All I`m trying to do is write some lines [a list of doubles] to a file [the exact number could be from a 10 to a few thousands].

Example :
12.55 45 67.5465
11.56 87 87.9876
09.45 65 12.1234
.
.
.
.
11.56 87 87.9876

Is it a good idea to loop through the lines and do a StreamWriter - WriteLine() or should I use Buffers, Send all the info to a buffer and write it once. How do I go about doing that?

A simple example should be awesome!

San24Asked:
Who is Participating?
 
wdosanjosCommented:
Do not worry about using buffers as StreamWriter is pretty efficient.

An alternative to writing the values is as follows:

SWFile.WriteLine("M  {0:#0.000000}\t{1:#0.000000}\t{2:#0.000000}", AList[i].X, AList[i].Y, AList[i].Z);

Open in new window

0
 
Mike TomlinsonMiddle School Assistant TeacherCommented:
How is your data currently being stored?  (what is the datatype of the structure?)
0
 
San24Author Commented:
I have the data in a group of Lists. Different points in the files have list of different types. In the example below I have A objects. But in the application I have A, B and C object - always in a sequential manner.

So first A objects need to be written, then B and C and so on.

Also is to format the values - Can I just use ToString("#0.000000") ? Or is there a better way to do it..When I say better, faster.
Class A
{
double X;
double Y;
double Z;
}

//AList - List of A objects
//SWFile is a StreamWriter

 for (int i = 0; i < Cnt; i++)
            {
                SWFile.WriteLine("M  " + AList[i].X + "\t" + AList[i].Y  + "\t" +  AList[i].Z);
            }

Open in new window

0
 
Mike TomlinsonMiddle School Assistant TeacherCommented:
I would override ToString() in each your classes:
public class A
    {

        public double X;
        public double Y;
        public double Z;

        public override string ToString()
        {
            return "M  " + this.X.ToString("#0.000000") + "\t" + this.Y.ToString("#0.000000") + "\t" + this.Z.ToString("#0.000000");
        }

    }

Open in new window


Then you can just use:
SWFile.WriteLine(AList[i].ToString());

Open in new window

0
 
San24Author Commented:
Thanks guys. Solution reached - StreamWriter the way to go.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.