Avoiding Keyboard Errors

[cmdolcet69]

Is there somthing I can use for a text box control that will help
avoid my users of entering "stupid" data. In many cases our user will
enter number such as 10.0 or 0.50 or even 0,45 however if my user
enter ..045 or ,,045 how can i control this and prompt him to re-
enter. I thought of using the replace function however I don;t know
what direction to take with this. Could someone please point me on the
right track???

[kimiraikkonen]

Re: Avoiding Keyboard Errors

On Feb 27, 6:27 pm, cmdolcet69 <colin_dolce... @hotmail.comwro te:

Is there somthing I can use for a text box control that will help
avoid my users of entering "stupid" data. In many cases our user will
enter number such as 10.0 or 0.50 or even 0,45 however if my user
enter ..045 or ,,045 how can i control this and prompt him to re-
enter. I thought of using the replace function however I don;t know
what direction to take with this. Could someone please point me on the
right track???

Hi,
Replace function can be used, in this sample you may correct incorrect
user entries that are done with " . " instead of
" , ":

If TextBox1.Text.C ontains(".") = True Then
TextBox1.Text = TextBox1.Text.R eplace(".", ",")
End If
End Sub

[rowe_newsgroups]

Re: Avoiding Keyboard Errors

On Feb 27, 11:27 am, cmdolcet69 <colin_dolce... @hotmail.comwro te:

Is there somthing I can use for a text box control that will help
avoid my users of entering "stupid" data. In many cases our user will
enter number such as 10.0 or 0.50 or even 0,45 however if my user
enter ..045 or ,,045 how can i control this and prompt him to re-
enter. I thought of using the replace function however I don;t know
what direction to take with this. Could someone please point me on the
right track???

I also should have mentioned you can use the MaskedEditTextB ox to
restrict what data can be entered.

Thanks,

Seth Rowe [MVP]

[Cor Ligthert[MVP]]

Re: Avoiding Keyboard Errors

Hi,

Beside the maskededit box is of course the good old but also in .Net
function IsNumeric good enough.

In fact it is an optimized and simple to use TryParse but in my idea more
then good enough for your purpose.

http://msdn2.microsoft.com/en-us/library/6cd3f6w1.aspx

Cor

"cmdolcet69 " <colin_dolcetti @hotmail.comsch reef in bericht
news:1a4d86c0-87e5-4228-8d65-f395d7a2c359@n5 8g2000hsf.googl egroups.com...

Is there somthing I can use for a text box control that will help
avoid my users of entering "stupid" data. In many cases our user will
enter number such as 10.0 or 0.50 or even 0,45 however if my user
enter ..045 or ,,045 how can i control this and prompt him to re-
enter. I thought of using the replace function however I don;t know
what direction to take with this. Could someone please point me on the
right track???

[Herfried K. Wagner [MVP]]

Re: Avoiding Keyboard Errors

"cmdolcet69 " <colin_dolcetti @hotmail.comsch rieb:

Is there somthing I can use for a text box control that will help
avoid my users of entering "stupid" data. In many cases our user will
enter number such as 10.0 or 0.50 or even 0,45 however if my user
enter ..045 or ,,045 how can i control this and prompt him to re-
enter.

\\\
Private Sub TextBox1_Valida ting( _
ByVal sender As Object, _
ByVal e As CancelEventArgs _
) Handles TextBox1.Valida ting
Dim SourceControl As TextBox = DirectCast(send er, TextBox)
Dim n As Double
If Not Double.TryParse (SourceControl. Text, n) Then
Me.ErrorProvide r1.SetError( _
SourceControl, _
"Value must be a double." _
)
Else
If Me.ErrorProvide r1.GetError(Sou rceControl).Len gth 0 Then
Me.ErrorProvide r1.SetError(Sou rceControl, String.Empty)
End If
...
End If
End Sub
///

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>