so I am transmitting data from an Arduino to a C# Winform that outputs the data to a text box and saves it to a file. The format of the transmitted data is as follows 18|25|999|100~; the first part is the time in seconds which allows me to know when a line has been skipped(the Arduino runs a counter every second), the '~' character denotes line end.
This data gets split up into an array(split by '|'), this array is then added to a Listview.
The data in the text box is perfect, all data is written, no line is skipped, but then I add the data to a listview and some lines are skipped.
private void tData_TextChanged(object sender, EventArgs e)
{
if (logdata.Checked)
{
string output = tData.Text;
string[] lines = output.Split('\n', '\r');
string last_line = lines[lines.Length - 1];
if (last_line.Contains("~"))
{
string output1 = tData.Text;
string[] lines1 = output1.Split('\n', '\r');
string last_line1 = lines1[lines.Length - 1];
string[] splitdata = last_line1.Split('|');
//side task - not important
int time = Convert.ToInt32(Convert.ToString(splitdata[0]));
TimeSpan currenttime = TimeSpan.FromSeconds(time);
string str = currenttime.ToString(@"hh\:mm\:ss\:fff");
label2.Text = str;
//save to file
string path = "database.can";
using (StreamWriter sw = File.AppendText(path))
{
sw.WriteLine(last_line1);
}
//check if line exists to prevent doubles
ListViewItem item = listView1.FindItemWithText(splitdata[0]);
if (item != null)
{
// it exists
}
else
{
//doesn't exist so add it
var listViewItem = new ListViewItem(splitdata);
listView1.Items.Add(listViewItem);
}
}
}
}
tData is the text box where all the data is written. I would greatly appreciate if someone could help me prevent lines from being skipped, I've been pulling out my hair over this for the past few days. Thank you, Gabe
so I finally figured out(thanks to @hanspassant) that using Readline() fixes the problem, before all the bytes were read one at a time which caused some lines to be skipped