RE: [NF] Help With VB.Net

[John]

Many thanks Alan, I'll give it a try.  I knew Profox would come up with the 
goods 😊

John

John Weller
07976 393631

> -----Original Message-----
> From: ProfoxTech <profoxtech-boun...@leafe.com> On Behalf Of Alan Bourke
> Sent: 10 January 2022 14:58
> To: profoxt...@leafe.com
> Subject: Re: [NF] Help With VB.Net
> 
> Assuming you are using Windows Forms and not WPF ...
> 
> You can detect an 'Enter' keypress via the KeyPress event.
> 
>     Private Sub TextBox1_KeyPress(sender As Object, e As KeyPressEventArgs)
> Handles TextBox1.KeyPress
>         If e.KeyChar = Microsoft.VisualBasic.ChrW(Keys.Return) Then
>             MessageBox.Show("Enter")
>         End If
>     End Sub
> 
> That won't detect focus leaving the textbox via tab or mouse click etc though.
> For that you might have to use the Validating event.
> 
>     Private Sub TextBox1_Validating(sender As Object, e As
> System.ComponentModel.CancelEventArgs) Handles TextBox1.Validating
> 
>         Dim isValid As Boolean
> 
>         isValid = True          ' Check what you need to check here.
> 
>         If isValid = False Then
>             e.Cancel = True
>         End If
> 
>     End Sub
> 
> 
> 
> --
>   Alan Bourke
>   alanpbourke (at) fastmail (dot) fm
> 
> On Mon, 10 Jan 2022, at 2:14 PM, j...@johnweller.co.uk wrote:
> > I am trying to help a friend write an app in VB.Net.  I need some code
> > to fire when a number is entered into a textbox and Enter pressed, as
> > in the Valid event in VFP, but can’t seem to find the appropriate VB
> > event – any suggestions gratefully received.  I’m asking here because
> > it is easier to specify the problem in VFP terms 😊
> >
> >
> >
> > TIA
> >
> >
> >
> > John
> >
> >
> >
> > John Weller
> >
> > 07976 393631
> >
> >
> >
> >
> >
> > --- StripMime Report -- processed MIME parts --- multipart/alternative
> >   text/plain (text body -- kept)
> >   text/html
> > ---
> >
[excessive quoting removed by server]

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