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I need KeyPress code to limit textbox entry to 2 places of decimal

Hi

I am using vb.net 2005 compact framework. I have the following keypress code that limits values entered into a textbox to numeric entry and back space. I need to take it one step further and limit entry to 2 places of decimals.

Code thus far:

Private Sub txtStandArea_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtStandArea.KeyPress
If Not Char.IsDigit(e.KeyChar) And Not e.KeyChar = "." And Not e.KeyChar = ChrW(8) Then
Beep()
e.Handled = True
End If
End Sub

I was trying to incorporate txtStandArea.Text.Length >= txtStandArea.Text.IndexOf(".") + 2 into it but I just cant seem to get the proper way. Please help.

Thanks

PBLack

ASKER CERTIFIED SOLUTION

prosh0t

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SOLUTION

Éric Moreau

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Jaime Olivares

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Todd MacPherson

ASKER

I do not know if your concerns apply to compact framework. I came up with a bit of code that seems to work just fine. I have tried using ctrl c to copy and ctrl v to paste but in compact framework it does not work...at least not on my device. Dell Axim X3.

The code I am using is working 100% as I wanted it to. Now if someone does know how to effect a copy-paste on this textbox I will have to change my ways as per your suggestions.

PBLack

Private Sub txtStandArea_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtStandArea.KeyPress
If Not Char.IsDigit(e.KeyChar) And Not e.KeyChar = "." And Not e.KeyChar = ChrW(8) Then
Beep()
e.Handled = True
Else
If e.KeyChar = "." And txtStandArea.Text.IndexOf(".") <> -1 Then
Beep()
e.Handled = True
ElseIf e.KeyChar = "." Then
e.Handled = False
ElseIf Char.IsDigit(e.KeyChar) Then
If txtStandArea.Text.IndexOf(".") <> -1 Then
If txtStandArea.Text.Length >= txtStandArea.Text.IndexOf(".") + 3 Then
Beep()
e.Handled = True
End If
End If
End If
End If
End Sub

Éric Moreau

it is not ctrl-c ctrl-v but if you click and hold the textbox, a menu will appear and let you copy and paste content

Todd MacPherson

ASKER

emoreau

that is true if you only program that functionality into it.

PBLack

Éric Moreau

I thought that this feature was built-in in the textbox control!

Todd MacPherson

ASKER

not that I can see

Todd MacPherson

ASKER

Hi again

Since I think that I reached a solution that works outside of the expert suggestions I will divide the points up among those who took the time to share their ideas.

Their solutions are great 'food for thought' outside of the compact framework schema.

Regards,

PBLack

ps - experts-exchange should have a compact framework section!