Vb net leave validating
Close() End Sub Private Sub Text Box1_Validating(By Val sender As Object, By Val e As System. The code to tell if the cancel button has been clicked is: /////// Public Declare Function Window From Point Lib "user32" (By Val p As POINTAPI) As Int Ptr Public Structure POINTAPI Dim X As Integer Dim Y As Integer End Structure Private Function Cancel Button Clicked() As Boolean Dim p As New POINTAPI p. As far as the original validation issue, I started a new project (VB2005) and tried your approach It works except that pressing the Esc key still causes the validation event to fire. -- Terry "Al Reid" wrote: Well, I finally solved the barcode scanner problem. Cancel = True End If End If End Sub Private Sub Button1_Click(By Val sender As System. I just don't know what key code combination could direct focus to a text box control that should never receive focus since the Tab Stop property is false and there is no other code that sets focus to the textbox. Also in the docs on Key Down there is a mention of "Is Input Key" which I will have to look into. -- Terry Terry, I tried the same scenario in VB6 and found that it works the way one would expect AND there is no need for the m Cancel flag either. -- Al Reid "Terry" Hi Al, Nearly 40 years for me since my first college FORTRAN IV class! Well, one of the keys you would not see in either the keypress or keydown events is the tab key, which of course will move the focus.You might even loop through all the controls on your form and focus each of them individually (or an individual control by giving it focus then changing the focus to another control), achieving the same effect: Which solution is better?I'd recommend staying away from reflecting on the internal methods and properties of Framework classes.The code I chose to implement the above scenario involved the Validating & Validated events: However, all I wanted to do was exit the form in the first place and not spend the extra cycles querying the database or making things happen on the form before closing.
What was making it tough was the validating event was firing before any other event. *giggle* So I jigged up the following code: I tossed the above code at the beggining of my Validating event, typed a couple letters in the box, click the infamous (more famous than famous) Mr.
One, remove the "control Box" from the form, so the user cant close it that way. in the btn Cancel_Click event: Removehandeler Text Box1.validating, Addressof Text Box1_Validating -- Terry That doesn't work either, at least not for VB2005. Then in the btn Cancel_click event, either set a module level variable like m Canceling to True and then in the validating event ... I've been fighting the same problem for some time now. I think that the only way to do this is to grab the mouse coordinates in the validating event, do a Window From Point API call, then compare the returned HWND to the Cancel Button's Handle. I also got the Window From Point approach working as well. The following code works as you might hope: Public Class Form1 Private m Canceling As Boolean = False Private Sub Button1_Click(By Val sender As System. Private Sub Text Box1_Validating(By Val sender As Object, By Val e As System. As far as the 'gun', it may be better to write a console app. -- Terry "Al Reid" wrote: Terry, I don't do anything with the barcode data in the Key Press event. I guess I could inspect the data in the Key Down event to see if there is a difference. news:78**********************************@microsof .. I am new to VB comming from VB6, but that was also the case in VB6. I added the code to handle the esc key per the "bug" thread and it works.