I have a problem with the date time picker validate event wich i believe is
a bug
How to reproduce :
throw on a form a date time picker control and a textbox control
select the validating event of the control and add this code
Private Sub DateTimePicker1 _Validating(ByV al sender As System.Object, ByVal
e As System.Componen tModel.CancelEv entArgs) Handles DateTimePicker1 .Validating
TextBox1.Text = Me.DateTimePick er1.Text
End Sub
start the project
change the standard value of the control but only the day or month ( not the
year ) now move away from the control with a tab
The textbox will show a different value as there is currently showed on your
screen by the date time picker
does someone have a good explanation for this ?
regards
Michel 4 4876
For people strugling with the same problem
i just found a workaround
create you own custom datetime picker ( copy and paste this code )
Option Strict On
Option Explicit On
Public Class CustomDateTimeP icker
Inherits DateTimePicker
Protected Overrides Sub OnValidating(By Val e As
System.Componen tModel.CancelEv entArgs)
MyBase.Visible = False
MyBase.Visible = True
MyBase.OnValida ting(e)
End Sub
End Class
This one behaves as expected , however if you have fast eyes or a slow
machine you might see a blink :-)
I consider the standard behavior as a bug
regards
Michel Posseth [MCP]
"Michel Posseth [MCP]" wrote:
>
I have a problem with the date time picker validate event wich i believe is
a bug
How to reproduce :
throw on a form a date time picker control and a textbox control
select the validating event of the control and add this code
Private Sub DateTimePicker1 _Validating(ByV al sender As System.Object, ByVal
e As System.Componen tModel.CancelEv entArgs) Handles DateTimePicker1 .Validating
TextBox1.Text = Me.DateTimePick er1.Text
End Sub
start the project
change the standard value of the control but only the day or month ( not the
year ) now move away from the control with a tab
The textbox will show a different value as there is currently showed on your
screen by the date time picker
does someone have a good explanation for this ?
regards
Michel
Michel,
Validating a date-time picker?
Is that something they do in Rotterdam?
You can in my idea better validate if the water there is clear enough to
drink.
:-)
Cor
"Michel Posseth [MCP]" <Mi************ **@discussions. microsoft.comsc hreef
in bericht news:F1******** *************** ***********@mic rosoft.com...
>
I have a problem with the date time picker validate event wich i believe
is
a bug
How to reproduce :
throw on a form a date time picker control and a textbox control
select the validating event of the control and add this code
Private Sub DateTimePicker1 _Validating(ByV al sender As System.Object,
ByVal
e As System.Componen tModel.CancelEv entArgs) Handles
DateTimePicker1 .Validating
TextBox1.Text = Me.DateTimePick er1.Text
End Sub
start the project
change the standard value of the control but only the day or month ( not
the
year ) now move away from the control with a tab
The textbox will show a different value as there is currently showed on
your
screen by the date time picker
does someone have a good explanation for this ?
regards
Michel
Well Cor ,,,
I currently work in a energy company , an we write software that calculates
energy bills .
A bill has to be made in a certain range of a time span
so before we create new entry`s in the database we would like to "validate"
this entered range, however it gets a bit tricky if the value that is showed
is different from the one that is in memory
have you tried my example of the problem ? , try it out and you will see
that this must be a serious bug .
by the way i found that this is enough to solve the problem
Option Strict On
Option Explicit On
Public Class CustomDateTimeP icker
Inherits DateTimePicker
Protected Overrides Sub OnValidating(By Val e As
System.Componen tModel.CancelEv entArgs)
MyBase.Visible = True
MyBase.OnValida ting(e)
End Sub
End Class
regards
Michel
"Cor Ligthert [MVP]" wrote:
Michel,
Validating a date-time picker?
Is that something they do in Rotterdam?
You can in my idea better validate if the water there is clear enough to
drink.
:-)
Cor
"Michel Posseth [MCP]" <Mi************ **@discussions. microsoft.comsc hreef
in bericht news:F1******** *************** ***********@mic rosoft.com...
I have a problem with the date time picker validate event wich i believe
is
a bug
How to reproduce :
throw on a form a date time picker control and a textbox control
select the validating event of the control and add this code
Private Sub DateTimePicker1 _Validating(ByV al sender As System.Object,
ByVal
e As System.Componen tModel.CancelEv entArgs) Handles
DateTimePicker1 .Validating
TextBox1.Text = Me.DateTimePick er1.Text
End Sub
start the project
change the standard value of the control but only the day or month ( not
the
year ) now move away from the control with a tab
The textbox will show a different value as there is currently showed on
your
screen by the date time picker
does someone have a good explanation for this ?
regards
Michel
Michel,
Don't take it serious, I saw the validating event and than thought is that
the right place, I made the message. After a while I thought, you are of
course testing the given date to certain possibilities, not if the given
date is correct.
I can assure you that I don't have to test things you say, I take it on your
word.
However sometimes I can not resist.
Cor
"Michel Posseth [MCP]" <Mi************ **@discussions. microsoft.comsc hreef
in bericht news:BB******** *************** ***********@mic rosoft.com...
Well Cor ,,,
I currently work in a energy company , an we write software that
calculates
energy bills .
A bill has to be made in a certain range of a time span
so before we create new entry`s in the database we would like to
"validate"
this entered range, however it gets a bit tricky if the value that is
showed
is different from the one that is in memory
have you tried my example of the problem ? , try it out and you will see
that this must be a serious bug .
by the way i found that this is enough to solve the problem
Option Strict On
Option Explicit On
Public Class CustomDateTimeP icker
Inherits DateTimePicker
Protected Overrides Sub OnValidating(By Val e As
System.Componen tModel.CancelEv entArgs)
MyBase.Visible = True
MyBase.OnValida ting(e)
End Sub
End Class
regards
Michel
"Cor Ligthert [MVP]" wrote:
>Michel,
Validating a date-time picker?
Is that something they do in Rotterdam?
You can in my idea better validate if the water there is clear enough to drink.
:-)
Cor
"Michel Posseth [MCP]" <Mi************ **@discussions. microsoft.com> schreef in bericht news:F1******** *************** ***********@mic rosoft.com...
>
I have a problem with the date time picker validate event wich i
believe
is
a bug
How to reproduce :
throw on a form a date time picker control and a textbox control
select the validating event of the control and add this code
Private Sub DateTimePicker1 _Validating(ByV al sender As System.Object,
ByVal
e As System.Componen tModel.CancelEv entArgs) Handles
DateTimePicker1 .Validating
TextBox1.Text = Me.DateTimePick er1.Text
End Sub
start the project
change the standard value of the control but only the day or month (
not
the
year ) now move away from the control with a tab
The textbox will show a different value as there is currently showed on
your
screen by the date time picker
does someone have a good explanation for this ?
regards
Michel
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