Child form, which stays in front

[sea]

I'm looking for a way to make an authentication form to my windows form based app. I want this form to be left in front of the parent main form, until user succeccfuly authenticate. If he press cancel it close the parent form. No other from may be load in front if this authentication form. TIA, Ronen Ronen

[ZejulioZ]

Make it modal. When you load you're authentification form, call theAuthForm.ShowDialog(parentForm); and that's probably enought but if you are looking to have the dialog abolutely on the top of all the others application windows , try the property theAuthForm.TopMost=true. I hope I've correctly understood your question. Julien