I experimented with a usercontrol (TagedTextbox), I added a tag
property.
The tag value however is not persisted on postback (text value's
fine)?
I worked around it with:
Me.ViewState("t ag") = txtToelichting. Tag
but what's wrong with my code?
[Code Snippet:]
Imports System.Componen tModel
Imports System.Web.UI
Namespace Greenbay
<DefaultPropert y("Text"), ValidationPrope rty("Text"),
ToolboxData("<{ 0}:TagedTextBox runat=server></{0}:TagedTextBo x>")>
Public Class TagedTextBox
Inherits System.Web.UI.W ebControls.Text Box
Implements INamingContaine r
Private _tag As String
Public Property Tag() As String
Get
Return _tag
End Get
Set(ByVal Value As String)
_tag = Value
End Set
End Property
End Class
End Namespace
Thanks in advance,
Mike 3 9234
Your subject says UserControl (ASCX files), but this is a server control
question (no problem, just wanted to make sure the terminology was
straight).
There's nothing wrong with your code, if you want the value to be persisted,
you need to store it in the viewstate as you did...there are no alternative,
unless you reset the value on postback in your page...your proprety should
probably look something like
public property Tag() as string
get
if ViewState("tag" ) is nothing then
'What to do? return default maybe?
else
Return cstr(ViewState( "tag"))
end if
end get
set (byval value as string)
ViewState("tag" ) = value
end set
end property
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"Mike Dole" <m_******@hotma il.com> wrote in message
news:fd******** *************** ***@posting.goo gle.com... I experimented with a usercontrol (TagedTextbox), I added a tag property. The tag value however is not persisted on postback (text value's fine)?
I worked around it with:
Me.ViewState("t ag") = txtToelichting. Tag
but what's wrong with my code? [Code Snippet:]
Imports System.Componen tModel Imports System.Web.UI
Namespace Greenbay
<DefaultPropert y("Text"), ValidationPrope rty("Text"), ToolboxData("<{ 0}:TagedTextBox runat=server></{0}:TagedTextBo x>")> Public Class TagedTextBox Inherits System.Web.UI.W ebControls.Text Box Implements INamingContaine r
Private _tag As String
Public Property Tag() As String Get Return _tag End Get Set(ByVal Value As String) _tag = Value End Set End Property End Class End Namespace
Thanks in advance,
Mike
Thanks Karl,
It did the trick, but it still confuses me (the client / server /
session thing).
I know that's what it's all about but I just don't get it..
In vb.net I just say
car.speed = 50
start car
'car.started = true
'car.speed = 50
In asp.net I have to start the car (By pressing the start button =
postback my speed resets), I have to store the speed in a ViewState.
If I catch the speed viewstate in In the page_load event it's empty
because the 50's assigned in the btn_start click event and the
Page_load event's triggered before speed gets it's value.
If I want to do something with the ViewState I have to retrieve the
values in the Pre_Render event..
Private Sub Page_PreRender( ByVal sender As Object, ByVal e As
System.EventArg s) Handles MyBase.PreRende r
Panel1.BackColo r = ViewState("Back Color")
End Sub
It seems like ASP.net is much more complicated...
But anyway thanks for your help it helped me a lot.
Regards,
Mike
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:<e6******* *******@tk2msft ngp13.phx.gbl>. .. Your subject says UserControl (ASCX files), but this is a server control question (no problem, just wanted to make sure the terminology was straight).
There's nothing wrong with your code, if you want the value to be persisted, you need to store it in the viewstate as you did...there are no alternative, unless you reset the value on postback in your page...your proprety should probably look something like
public property Tag() as string get if ViewState("tag" ) is nothing then 'What to do? return default maybe? else Return cstr(ViewState( "tag")) end if end get set (byval value as string) ViewState("tag" ) = value end set end property
Karl
-- MY ASP.Net tutorials http://www.openmymind.net/
It is..but in winforms the client is always connected, there is a constant
state "ON"...in ASP.Net it's "ON/OFF/ON/OFF/ON/OFF" with nothing connecting
the pieces together....wit hout a doubt it's more complicated, but it's not
like they said "let's screw web developers!"... it's just how working with a
stateless environment works...
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"Mike Dole" <m_******@hotma il.com> wrote in message
news:fd******** *************** ***@posting.goo gle.com... Thanks Karl,
It did the trick, but it still confuses me (the client / server / session thing). I know that's what it's all about but I just don't get it..
In vb.net I just say car.speed = 50 start car 'car.started = true 'car.speed = 50
In asp.net I have to start the car (By pressing the start button = postback my speed resets), I have to store the speed in a ViewState.
If I catch the speed viewstate in In the page_load event it's empty because the 50's assigned in the btn_start click event and the Page_load event's triggered before speed gets it's value.
If I want to do something with the ViewState I have to retrieve the values in the Pre_Render event..
Private Sub Page_PreRender( ByVal sender As Object, ByVal e As System.EventArg s) Handles MyBase.PreRende r Panel1.BackColo r = ViewState("Back Color") End Sub
It seems like ASP.net is much more complicated...
But anyway thanks for your help it helped me a lot.
Regards,
Mike "Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:<e6******* *******@tk2msft ngp13.phx.gbl>. .. Your subject says UserControl (ASCX files), but this is a server control question (no problem, just wanted to make sure the terminology was straight).
There's nothing wrong with your code, if you want the value to be
persisted, you need to store it in the viewstate as you did...there are no
alternative, unless you reset the value on postback in your page...your proprety
should probably look something like
public property Tag() as string get if ViewState("tag" ) is nothing then 'What to do? return default maybe? else Return cstr(ViewState( "tag")) end if end get set (byval value as string) ViewState("tag" ) = value end set end property
Karl
-- MY ASP.Net tutorials http://www.openmymind.net/ This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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