Excel add-in password text box

I want make authentication in Excel Add-in Ribbon and sign in form is build in Ribbon (no mod开发者_如何学Cal window) but I need hide password characted in password text box. Ribbon don't allow add to group text box so I use edit box for enter login and password.

Do you know how can I set up "set_PasswordChar" for text box in ribbon?

You can't there is no event to trap like onkeyup. The only way is to spown a form and manage the login outside the ribbons componet.

The only event on RibbonEditBos is TextChanged and Dispose.

For the TextChanged u can't trap single char mod. It fire when u submit the mods.

On the onkeyup event, take the character out of the textbox, and replace it with an * store this into a variable to capture the password, then you just show a series of "**" in the text box. Is this what you're looking for?