private void openToolStripButton_Click(object sender, EventArgs e)
{
Dictionary<string, string> currentDictionary = computers;
//make a backup
OpenFileDialog openFileDialog2 = new OpenFileDialog();
openFileDialog2.Filter = "Text Files (*.txt) | *.txt|All files (*.*)|*.*";
openFileDialog2.CheckPathExists = true;
openFileDialog2.CheckFileExists = true;
DialogResult openResult = openFileDialog2.ShowDialog();
if (openResult == DialogResult.OK)
//readInComputerNames(openFileDialog2.FileName);
try
{
BinaryFormatter bf = new BinaryFormatter();
using (Stream input = File.OpenRead(openFileDialog2.FileName))
{
computers = (Dictionary<string, string>)bf.Deserialize(input);
UpdateListBoxes();
}
}
catch (Exception ex)
{
MessageBox.Show("Something went wrong\r\n" + ex.Message);
}
}
private int numberOfNotNullElements(Dictionary<string, string>.KeyCollection keyCollection)
{
int number=0;
foreach (string element in keyCollection)
{
if (element != null)
{
number++;
}
}
return number;
}