Form closing event will fire every time form is closed whether that is done by code or by user click.
What you need is something similar to this.
private boolean bFormCloseFlag = false;
private void Connect_Click(object sender, EventArgs e)
{
try
{
orcl.connect(userID.Text, Password.Text, comboTNS.Text);
if (orcl.ifHasRows("select dbclass from setupdbversion where dbclass='SECURITY' and rownum=1"))
{//my stuff
bFormCloseFlag = true;
this.Close();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString());
};
}
private void SecConnForm_FormClosing_1(object sender, FormClosingEventArgs e)
{
if (bFormCloseFlag = false)
{
MessageBox.Show(sender.ToString());
if (e.CloseReason == CloseReason.UserClosing)
{
MessageBox.Show(sender.ToString());
if (string.Equals((sender as Form).Name, @"SecConnForm")) //it doesn't work as in any cases the sender is my form, not a button (when i click on button of course)
{
if (MessageBox.Show(this, "Really exit?", "Closing...",
MessageBoxButtons.OKCancel, MessageBoxIcon.Question)
== DialogResult.Cancel)
e.Cancel = true;
else
Application.Exit();
}
else
{
//other stuff goes..
}
}
}
}
This flag will simply check whether form is closed by 'X' button click or it is closed by your code.