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.NET DotNet Forum Index » VB.NET Forum (Visual Basic .NET) » Why does TextBox's validating not work when using...
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Message |
| fts2012 at (no spam) gmail.com... |
 Posted: Mon Oct 13, 2008 3:08 pm |
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Guest
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' if the textbox is empty show an error message 1001
Private Sub TextBox1_Validating(ByVal sender As System.Object,
ByVal e As System.ComponentModel.CancelEventArgs) Handles
TextBox1.Validating
TextBox1.BackColor = Color.White
If TextBox1.Text.Length = 0 Then
TextBox1.Select()
TextBox1.BackColor = Color.Yellow
MsgBox("1001")
e.Cancel = True
End If
End Sub
but if I click the DateTimePicker, the message "1001" will be
displayed twice, and then as long as I click the left mouse , it will
be showed twice.
Can anybody tell me how to deal with it ?
Thanks . |
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| fts2012 at (no spam) gmail.com... |
| Posted: Tue Oct 14, 2008 7:21 pm |
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Guest
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On Oct 14, 3:04 pm, karim <ka... at (no spam) discussions.microsoft.com> wrote:
Quote: Hello, from what I see in you code, I think you need to use (Else) if you
don't want the msg (1001)to comeup. but the way you have it now themsg
will come up every time you click your txt box. see if this will work...
TextBox1.Validating> TextBox1.BackColor = Color.White
If TextBox1.Text.Length = 0 Then
TextBox1.Select()
else
TextBox1.BackColor = Color.Yellow
MsgBox("1001")
e.Cancel = True
End If
Hope this helps...
Thanks.
This problem was solved.
It was caused by the "TextBox1.select()".
code as bellow will be right.
Private Sub TextBox1_Validating(ByVal sender As System.Object,
ByVal e As System.ComponentModel.CancelEventArgs) Handles
TextBox1.Validating
TextBox1.BackColor = Color.White
If TextBox1.Text.Length = 0 Then
' TextBox1.Select()
TextBox1.BackColor = Color.Yellow
MsgBox("1001")
e.Cancel = True
End If
End Sub |
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| fts2012 at (no spam) gmail.com... |
| Posted: Tue Oct 14, 2008 7:27 pm |
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Guest
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On Oct 15, 2:16 am, "Family Tree Mike"
<FamilyTreeM... at (no spam) ThisOldHouse.com> wrote:
Quote: What is the connection between the textbox1 and datetimepicker? Is the
datetimepickersettingthe text in thetextbox when youchangethe date?
fts2... at (no spam) gmail.com> wrote in message
news:bfc3ac1e-e62c-460a-b2ef-3bf38a8d6c2f at (no spam) l33g2000pri.googlegroups.com...
' if the textbox is empty show an error message 1001
Private Sub TextBox1_Validating(ByVal sender As System.Object,
ByVal e As System.ComponentModel.CancelEventArgs) Handles
TextBox1.Validating
TextBox1.BackColor = Color.White
If TextBox1.Text.Length = 0 Then
TextBox1.Select()
TextBox1.BackColor = Color.Yellow
MsgBox("1001")
e.Cancel = True
End If
End Sub
but if I click the DateTimePicker, the message "1001" will be
displayed twice, and then as long as I click the left mouse , it will
be showed twice.
Can anybody tell me how to deal with it ?
Thanks .
the connection is the check, when the focus move to the
datetimepicker, it should check the content of textbox.
(thanks for your reply,the problem was solved. ) |
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