Android Question Empty EditBox Alert

[SumanR]

How to alert message for Empty EditBox when Execute action button in B4A?

 

[KZero]

if edit1.text = "" then msgbox("editbox is empty","")

check this user guide https://www.b4x.com/android/files/UserGuide.zip

 

[Bladimir Silva Toro]

Another type of validation:

If Edit1.Text.Length=0 Then
   Msgbox("editbox is empty","Warning!!!")
End If

 

[Eme Fibonacci]

And if you just type a space?

A better way

if edit1.Text.Trim = "" then msgbox("editbox is empty","")

 

[Erel]

Note that it is better to use MsgboxAsync.

https://www.b4x.com/android/forum/t...cated-and-async-dialogs-msgbox.79578/#content