installer.msi windows dialogbox

Question

I have Two winform1-frmcheckupdate 2-FrmUserLogin

simple I run our application ,if updated installer ".msi" is available then show a message box with MessageBoxButtons.YesNo to update existing ".msi".

if i click "YES" then updation start successfully,

But if i click "NO" then I want to show dialog as "FrmUserLogin " form and closed form as frmcheckupdate.

I have try as below code -

frmchkupdate fu = new frmchkupdate();
fu.Close();
fu.Hide();
//checkForUpdate.StopThread();
// fu.Dispose();

FrmUserLogin fl = new FrmUserLogin();
fl.ShowDialog();

plz tell me why frmchkupdate is not closed/hide.

Amit Gupta · Answer

Using this.Opacity = 0.0f; this.ShowInTaskbar = false; instead of this this.Hide(); also solves the problem. Or You can use this.ShowInTaskbar = false; this.Visible =false;