how do i compare string formats?!

on the client side i send a string in this format:

Object xyData = xco.ToString("000") + "%" + yco.ToString("000") + "%";

byte[] xybyData = System.Text.Encoding.UTF8.GetBytes(xyData.ToString());

if (m_clientSocket != null)
{

m_clientSocket.Send(xybyData);
}
and on the server side i receive it like this:

if (szData.Contains("%"))
{
richTextRxMessage.Text = szData;

xyData = szData.Split('%');

x = Convert.ToInt32(xyData[0]);
y = Convert.ToInt32(xyData[1]);
}

the problem is somtimes another client send some other data containing something else.. and the server mix up the data,, the zdData will become like this szData = "\0\0134%\0"..
i want to compare the string format when i receive the data on the server..
Note.. the data buffer is 8.

any idea on how to do that ! or fix it
thnx

Answer this question

how do i compare string formats?!

John230873
hi,

i guess you don't need the second '%' flag so you can remove it as soon as you recieve this data like to take the substring from index 0 to the last index of % and to split the string and to see the array length if it 1 or 2, then you can select the recieved data you want

or at least you can count the charachter % in the recieved string and that will tell you which packet is that

hope this helps
Bhupathi Venkatesh
What type is "xco"
Sharma
You haven't provided enough of the code to really make an accurate evaluation.

What I think is going on is either you've got a difference of locale problem or an invalid encoding/decoding of text data (or both).

How is szData created If you are not using UTF8Encoding.GetString(byte[]) you'll get strange errors because you're encoding in one format and decoding in another.

I would suggest you add an InvariantCulture to your calls to formatting methods like ToString and ToInt32 when you're using text to store/transfer numerical data that isn't displayed to the user. For Example:

Client

int xco = 1, yco = 2;

Object xyData = xco.ToString("000", CultureInfo.InvariantCulture)

+ "%" + yco.ToString("000", CultureInfo.InvariantCulture);

byte[] xybyData = System.Text.Encoding.UTF8.GetBytes(xyData.ToString());

Server

String szData = System.Text.Encoding.UTF8.GetString(xybyData);

String[] arr = szData.Split('%');

int x = Convert.ToInt32(arr[0], CultureInfo.InvariantCulture);

int y = Convert.ToInt32(arr[1], CultureInfo.InvariantCulture);

By the way, you don't need the xyData.ToString() if you make xyData a String type instead of Object.
clkdiv
xco and yco are "int" there values are assigned by the x and y coordinates of the mouse..
how do i compare string formats?!

Answer this question