Vb net validating close form accepted reasons for backdating job seekers allowance
The Validating event seems to process before Closing. ) There are occasions where I would not want the validating event to run, such as form close, but cannot gain control soon enough to inhibit Validating events. [Visual Basic] Private Sub My Validating Code() ' Confirm there is text in the control.
(if form close red x is clicked, and Validating is running, can Validating query any collection or parameter? This example assumes that a Text Box and Error Provider control have been created on a form. Length = 0 Then Throw New Exception("Email address is a required field") Else 1 Then Throw New Exception("E-mail address must be valid e-mail address format." _ End If End If End Sub Private Sub text Box1_Validating(sender As Object, _ e As System.
I don't want it to be since they are exiting the screen the validation doesn't have to be done. It doesn't need to be validated because the user is exiting. As far as the original validation issue, I started a new project (VB2005) and tried your approach It works except that pressing Esc key still causes the validation event to fire. -- Al Reid "Terry" Hi Al, There is another property at the form level that affects how this stuff works - Auto Validate.
Darin *** Sent via Developersdex Yes, closing the form causes 'validating' to take place. I have come to the belief that the problem we are seeing with the escape key is a bug.
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 "Darin" wrote: I know that, but the problem is when the user clicks EXIT, the textbox.validating event is called BEFORE the cancel.click is done, so the textbox is being validated. According to the documentation: "The cancel button for a form is the button control that is clicked whenever the user presses the ESC key." Which says to me the behavior s/b the same! To Short Date String Else Msg Box("Please enter a valid date.") e.
Then in the btn Cancel_click event, either set a module level variable like m Canceling to True and then in the validating event ... It doesn't need to be validated because the user is exiting. Length Yes, closing the form causes 'validating' to take place. Close() End Sub Private Sub Text Box1_Validating(By Val sender As Object, By Val e As System. I am going to start a new thread - calling it a bug and see what happens. Down (Down Arrow) and some how (and I never figured this one out) the next control in the tab order, regardless of the Tab Stop property, got focus. Cancel = True End If End If End Sub 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.
Message) End Try End Sub Private Sub text Box1_Validated(sender As Object, _ e As System. Validated ' If all conditions have been met, clear the error provider of errors. Set Error(text Box1, "") End Sub [C#] private void My Validating Code() : There are occasions where I would not want the validating : event to run, such as form close, but cannot gain control : soon enough to inhibit Validating events. As well as, I belive you might be thinking of mousehover, mouseleave? When I click the Text Box, the Enter event gets fired; When I leave the focus to another control, the Validated event gets fired. This event is designed to track when you move the mouse pointer inside the control's visible area.I have a form w/ a textbox and Cancel button on it. When I click on the cancel button it doesn't even get to the cancel.click event until AFTER it has done the validating. 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. According to the documentation: "The cancel button for a form is the button control that is clicked whenever the user presses the ESC key." Which says to me the behavior s/b the same! Validating If Not mbln Cancel Then Dim dte Date As Date Time If Date Time. Also note that the "trick" to closing the form is not keeping a seperate "canceling" flag, but to put "e.cancel=False" in the forms closing event. ) Example [Visual Basic, C#] The following example uses the derived class Text Box and validates an e-mail address that the user enters.
(if form : close red x is clicked, and Validating is running, can : Validating query any collection or parameter? If the Cancel property of the Cancel Event Args object is set to true in the Validating event delegate, all events that would normally occur after the Validating event are suppressed. -- Peter Wu Microsoft Corporation This posting is provided "AS IS" with no warranties, and confers no rights.
-- Al Reid (who didn't mean to hijack the thread) "Terry" Well it works for me - but one thing I left out - you need to set the cancel buttons 'causes validation' to false. The gun was putting out a LF after the CR and in the Key Down event it showed up as a Keys. Validating If Not mbln Cancel Then Dim dte Date As Date Time If Date Time. I am new to VB comming from VB6, but that was also the case in VB6. I tried to recreate what I did yesterday and ended up having the same problem you are having! Why it would stop on a textbox with tabstop property set to False - I have no idea, unless it is a behavior of the container its in. Maybe you should be using the Key Down event instead of the Key Press event. here is a line copied from the documentation: "The Key Press event is not raised by noncharacter keys; however, the noncharacter keys do raise the Key Down and Key Up events." My guess is that the gun is sending some noncharacter data to you.