I have a combobox where a user can select a zoom factor or enter a
zoom factor.
I tried to limit entry into the combobox to numbers only by catching
the keydown event and setting e.handled = true if any non number
characters are entered.
But those characters still appear in the combobox. Is this a combobox
bug?
If yes any workarounds?
Tosch
10  9075 
Hi Tosch,
Use the keypress event. The following worked fine for me, disallowing 'a':
If e.KeyChar = "a" Then
e.Handled = True
End If
HTH,
Bernie Yaeger
"Tosch" <to**********@swissonline.ch> wrote in message
news:18********************************@4ax.com... I have a combobox where a user can select a zoom factor or enter a
zoom factor.
I tried to limit entry into the combobox to numbers only by catching
the keydown event and setting e.handled = true if any non number
characters are entered.
But those characters still appear in the combobox. Is this a combobox
bug?
If yes any workarounds?
Tosch
Hi Tosch,
Use the keypress event. The following worked fine for me, disallowing 'a':
If e.KeyChar = "a" Then
e.Handled = True
End If
HTH,
Bernie Yaeger
"Tosch" <to**********@swissonline.ch> wrote in message
news:18********************************@4ax.com... I have a combobox where a user can select a zoom factor or enter a
zoom factor.
I tried to limit entry into the combobox to numbers only by catching
the keydown event and setting e.handled = true if any non number
characters are entered.
But those characters still appear in the combobox. Is this a combobox
bug?
If yes any workarounds?
Tosch
This is my code and it's not working. I want only numbers 0-9
accepted:
Private Sub ComboBox1_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles ComboBox1.KeyPress
Select Case e.KeyChar
Case "0" To "9"
Case Else
e.Handled = True
End Select
End Sub
BTW: I'm using VS2002.
Tosch
On Thu, 11 Nov 2004 09:58:23 -0500, "Bernie Yaeger"
<be*****@cherwellinc.com> wrote: Hi Tosch,
Use the keypress event. The following worked fine for me, disallowing 'a':
If e.KeyChar = "a" Then
e.Handled = True
End If
HTH,
Bernie Yaeger
"Tosch" <to**********@swissonline.ch> wrote in message
news:18********************************@4ax.com.. .I have a combobox where a user can select a zoom factor or enter a
zoom factor.
I tried to limit entry into the combobox to numbers only by catching
the keydown event and setting e.handled = true if any non number
characters are entered.
But those characters still appear in the combobox. Is this a combobox
bug?
If yes any workarounds?
Tosch
This is my code and it's not working. I want only numbers 0-9
accepted:
Private Sub ComboBox1_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles ComboBox1.KeyPress
Select Case e.KeyChar
Case "0" To "9"
Case Else
e.Handled = True
End Select
End Sub
BTW: I'm using VS2002.
Tosch
On Thu, 11 Nov 2004 09:58:23 -0500, "Bernie Yaeger"
<be*****@cherwellinc.com> wrote: Hi Tosch,
Use the keypress event. The following worked fine for me, disallowing 'a':
If e.KeyChar = "a" Then
e.Handled = True
End If
HTH,
Bernie Yaeger
"Tosch" <to**********@swissonline.ch> wrote in message
news:18********************************@4ax.com.. .I have a combobox where a user can select a zoom factor or enter a
zoom factor.
I tried to limit entry into the combobox to numbers only by catching
the keydown event and setting e.handled = true if any non number
characters are entered.
But those characters still appear in the combobox. Is this a combobox
bug?
If yes any workarounds?
Tosch
Tosch,
Tosch,
Some hours ago I showed this sample too EDB he told me that it was what he
wanted, however, that it can be optimized, and he is right, it where first
two samples. http://groups.google.com/groups?selm...TNGP12.phx.gbl
I did not change them yet.
I hope however that it helps you as well.
Cor
"Tosch" <to**********@swissonline.ch> This is my code and it's not working. I want only numbers 0-9
accepted:
Private Sub ComboBox1_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles ComboBox1.KeyPress
Select Case e.KeyChar
Case "0" To "9"
Case Else
e.Handled = True
End Select
End Sub
BTW: I'm using VS2002.
Tosch
On Thu, 11 Nov 2004 09:58:23 -0500, "Bernie Yaeger"
<be*****@cherwellinc.com> wrote:
Hi Tosch,
Use the keypress event. The following worked fine for me, disallowing
'a':
If e.KeyChar = "a" Then
e.Handled = True
End If
HTH,
Bernie Yaeger
"Tosch" <to**********@swissonline.ch> wrote in message
news:18********************************@4ax.com. ..I have a combobox where a user can select a zoom factor or enter a
zoom factor.
I tried to limit entry into the combobox to numbers only by catching
the keydown event and setting e.handled = true if any non number
characters are entered.
But those characters still appear in the combobox. Is this a combobox
bug?
If yes any workarounds?
Tosch
Tosch,
Tosch,
Some hours ago I showed this sample too EDB he told me that it was what he
wanted, however, that it can be optimized, and he is right, it where first
two samples. http://groups.google.com/groups?selm...TNGP12.phx.gbl
I did not change them yet.
I hope however that it helps you as well.
Cor
"Tosch" <to**********@swissonline.ch> This is my code and it's not working. I want only numbers 0-9
accepted:
Private Sub ComboBox1_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles ComboBox1.KeyPress
Select Case e.KeyChar
Case "0" To "9"
Case Else
e.Handled = True
End Select
End Sub
BTW: I'm using VS2002.
Tosch
On Thu, 11 Nov 2004 09:58:23 -0500, "Bernie Yaeger"
<be*****@cherwellinc.com> wrote:
Hi Tosch,
Use the keypress event. The following worked fine for me, disallowing
'a':
If e.KeyChar = "a" Then
e.Handled = True
End If
HTH,
Bernie Yaeger
"Tosch" <to**********@swissonline.ch> wrote in message
news:18********************************@4ax.com. ..I have a combobox where a user can select a zoom factor or enter a
zoom factor.
I tried to limit entry into the combobox to numbers only by catching
the keydown event and setting e.handled = true if any non number
characters are entered.
But those characters still appear in the combobox. Is this a combobox
bug?
If yes any workarounds?
Tosch
"Tosch" <to**********@swissonline.ch> schrieb: This is my code and it's not working. I want only numbers 0-9
accepted:
Private Sub ComboBox1_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles ComboBox1.KeyPress
Select Case e.KeyChar
Case "0" To "9"
Case Else
e.Handled = True
End Select
End Sub
BTW: I'm using VS2002.
IIRC that's caused by the buggy implementation of the combobox.
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
"Tosch" <to**********@swissonline.ch> schrieb: This is my code and it's not working. I want only numbers 0-9
accepted:
Private Sub ComboBox1_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles ComboBox1.KeyPress
Select Case e.KeyChar
Case "0" To "9"
Case Else
e.Handled = True
End Select
End Sub
BTW: I'm using VS2002.
IIRC that's caused by the buggy implementation of the combobox.
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
Hi Tosch,
I tried your code inside vs 2003, which is all that I work with, and it
worked fine. So the answer has to be that there's a bug in 2002. Also, you
have to add a few characters - backspace, delete, arrow keys, etc. So you
may want to modify your code, into something like this:
Dim KeyAscii As Integer = Asc(e.KeyChar)
Select Case KeyAscii
Case 8, 27, 48 To 57, 9
Case Else
KeyAscii = 0
End Select
If KeyAscii = 0 Then
e.Handled = True
Else
e.Handled = False
End If
HTH,
Bernie Yaeger
"Tosch" <to**********@swissonline.ch> wrote in message
news:8r********************************@4ax.com... This is my code and it's not working. I want only numbers 0-9
accepted:
Private Sub ComboBox1_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles ComboBox1.KeyPress
Select Case e.KeyChar
Case "0" To "9"
Case Else
e.Handled = True
End Select
End Sub
BTW: I'm using VS2002.
Tosch
On Thu, 11 Nov 2004 09:58:23 -0500, "Bernie Yaeger"
<be*****@cherwellinc.com> wrote:
Hi Tosch,
Use the keypress event. The following worked fine for me, disallowing
'a':
If e.KeyChar = "a" Then
e.Handled = True
End If
HTH,
Bernie Yaeger
"Tosch" <to**********@swissonline.ch> wrote in message
news:18********************************@4ax.com. ..I have a combobox where a user can select a zoom factor or enter a
zoom factor.
I tried to limit entry into the combobox to numbers only by catching
the keydown event and setting e.handled = true if any non number
characters are entered.
But those characters still appear in the combobox. Is this a combobox
bug?
If yes any workarounds?
Tosch
Hi Tosch,
I tried your code inside vs 2003, which is all that I work with, and it
worked fine. So the answer has to be that there's a bug in 2002. Also, you
have to add a few characters - backspace, delete, arrow keys, etc. So you
may want to modify your code, into something like this:
Dim KeyAscii As Integer = Asc(e.KeyChar)
Select Case KeyAscii
Case 8, 27, 48 To 57, 9
Case Else
KeyAscii = 0
End Select
If KeyAscii = 0 Then
e.Handled = True
Else
e.Handled = False
End If
HTH,
Bernie Yaeger
"Tosch" <to**********@swissonline.ch> wrote in message
news:8r********************************@4ax.com... This is my code and it's not working. I want only numbers 0-9
accepted:
Private Sub ComboBox1_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles ComboBox1.KeyPress
Select Case e.KeyChar
Case "0" To "9"
Case Else
e.Handled = True
End Select
End Sub
BTW: I'm using VS2002.
Tosch
On Thu, 11 Nov 2004 09:58:23 -0500, "Bernie Yaeger"
<be*****@cherwellinc.com> wrote:
Hi Tosch,
Use the keypress event. The following worked fine for me, disallowing
'a':
If e.KeyChar = "a" Then
e.Handled = True
End If
HTH,
Bernie Yaeger
"Tosch" <to**********@swissonline.ch> wrote in message
news:18********************************@4ax.com. ..I have a combobox where a user can select a zoom factor or enter a
zoom factor.
I tried to limit entry into the combobox to numbers only by catching
the keydown event and setting e.handled = true if any non number
characters are entered.
But those characters still appear in the combobox. Is this a combobox
bug?
If yes any workarounds?
Tosch This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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