Addhandler help

[UGH]

I am adding image buttons dynamically and I need to add event handler when
the user clicks on one of those image buttons which will have different id
for reports.

Here is my code

LnkImage = New ImageButton()
LnkImage.ImageUrl = "~/printer.gif"
LnkImage.ID = "ib" & oArray(1, id)
AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()
cellItem.Controls.Add(LnkImage)

here is the handler

Private Sub NewIbnCommandEvent(ByVal sender As System.Object, ByVal e As
System.Web.UI.ImageClickEventArgs)
' Will do something here
Reponse.redirect(""~/appt.aspx?appt_id=" & LnkImage.ID")
End Sub

But I get this error message. Argument not specified for parameter 'e' of
'Private Sub NewIbnCommandEvent(sender As Object, e As
System.Web.UI.ImageClickEventArgs)'.

I do not know what to put in between the () AddHandler LnkImage.Command,
AddressOf NewIbnCommandEvent()

Thanks for any help.

[Kumar Reddi]

Hi,
Please remove the parenthesis in the AddHandler code for the eventhandler,
your code should be

AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent

instead of

AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()

For more information take a look at the following microsoft link

http://msdn.microsoft.com/library/de...BSpec8_6_2.asp

Good Luck

--
Kumar Reddi
http://kumarreddi.blogspot.com

"UGH" <no****@noSPam.com> wrote in message
news:OB**************@TK2MSFTNGP11.phx.gbl...

I am adding image buttons dynamically and I need to add event handler when
the user clicks on one of those image buttons which will have different id
for reports.

Here is my code

LnkImage = New ImageButton()
LnkImage.ImageUrl = "~/printer.gif"
LnkImage.ID = "ib" & oArray(1, id)
AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()
cellItem.Controls.Add(LnkImage)

here is the handler

Private Sub NewIbnCommandEvent(ByVal sender As System.Object, ByVal e As
System.Web.UI.ImageClickEventArgs)
' Will do something here
Reponse.redirect(""~/appt.aspx?appt_id=" & LnkImage.ID")
End Sub

But I get this error message. Argument not specified for parameter 'e' of
'Private Sub NewIbnCommandEvent(sender As Object, e As
System.Web.UI.ImageClickEventArgs)'.

I do not know what to put in between the () AddHandler LnkImage.Command,
AddressOf NewIbnCommandEvent()

Thanks for any help.

[Karl Seguin]

Couple things,

first to get rid of the error, simply remove the () after the addressof, so
instead of:
AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()

do:
AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent

simple, non?
Secondly, if you are going to use Command instead of Click (which you
probably want to in this case), your 2nd parameter needs to be of type
System.Web.UI.WEbControls.CommandEventArgs. ImageclickEventArgs is for the
click event
Lastly, consider using LnkImage.CommandArgument = "ib" & oArray(i,id) and
use e.commandArgument as your parameter in your redirect. This way LnkImage
doesn't have to be declared as a global property - simply scope it where you
create it and forget about it.

Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"UGH" <no****@noSPam.com> wrote in message
news:OB**************@TK2MSFTNGP11.phx.gbl...

I am adding image buttons dynamically and I need to add event handler when
the user clicks on one of those image buttons which will have different id
for reports.

Here is my code

LnkImage = New ImageButton()
LnkImage.ImageUrl = "~/printer.gif"
LnkImage.ID = "ib" & oArray(1, id)
AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()
cellItem.Controls.Add(LnkImage)

here is the handler

Private Sub NewIbnCommandEvent(ByVal sender As System.Object, ByVal e As
System.Web.UI.ImageClickEventArgs)
' Will do something here
Reponse.redirect(""~/appt.aspx?appt_id=" & LnkImage.ID")
End Sub

But I get this error message. Argument not specified for parameter 'e' of
'Private Sub NewIbnCommandEvent(sender As Object, e As
System.Web.UI.ImageClickEventArgs)'.

I do not know what to put in between the () AddHandler LnkImage.Command,
AddressOf NewIbnCommandEvent()

Thanks for any help.

[UGH]

I otok out the () but it still gives me the error.

XXXXXXX.aspx.vb(218): Method 'Private Sub NewIbnCommandEvent()' does not
have the same signature as delegate 'Delegate Sub CommandEventHandler(sender
As Object, e As System.Web.UI.WebControls.CommandEventArgs)'.

"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:%2****************@TK2MSFTNGP15.phx.gbl...

Couple things,

first to get rid of the error, simply remove the () after the addressof,
so
instead of:
AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()

do:
AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent

simple, non?
Secondly, if you are going to use Command instead of Click (which you
probably want to in this case), your 2nd parameter needs to be of type
System.Web.UI.WEbControls.CommandEventArgs. ImageclickEventArgs is for the
click event
Lastly, consider using LnkImage.CommandArgument = "ib" & oArray(i,id) and
use e.commandArgument as your parameter in your redirect. This way
LnkImage
doesn't have to be declared as a global property - simply scope it where
you
create it and forget about it.

Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"UGH" <no****@noSPam.com> wrote in message
news:OB**************@TK2MSFTNGP11.phx.gbl...

I am adding image buttons dynamically and I need to add event handler
when
the user clicks on one of those image buttons which will have different
id
for reports.

Here is my code

LnkImage = New ImageButton()
LnkImage.ImageUrl = "~/printer.gif"
LnkImage.ID = "ib" & oArray(1, id)
AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()
cellItem.Controls.Add(LnkImage)

here is the handler

Private Sub NewIbnCommandEvent(ByVal sender As System.Object, ByVal e As
System.Web.UI.ImageClickEventArgs)
' Will do something here
Reponse.redirect(""~/appt.aspx?appt_id=" & LnkImage.ID")
End Sub

But I get this error message. Argument not specified for parameter 'e' of
'Private Sub NewIbnCommandEvent(sender As Object, e As
System.Web.UI.ImageClickEventArgs)'.

I do not know what to put in between the () AddHandler LnkImage.Command,
AddressOf NewIbnCommandEvent()

Thanks for any help.

[Karl Seguin]

If you read my original reply, you'll see that I addressed this...it's my
second point.

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/
"UGH" <no****@noSPam.com> wrote in message
news:uq**************@TK2MSFTNGP11.phx.gbl...

I otok out the () but it still gives me the error.

XXXXXXX.aspx.vb(218): Method 'Private Sub NewIbnCommandEvent()' does not
have the same signature as delegate 'Delegate Sub CommandEventHandler(sender As Object, e As System.Web.UI.WebControls.CommandEventArgs)'.

"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:%2****************@TK2MSFTNGP15.phx.gbl...

Couple things,

first to get rid of the error, simply remove the () after the addressof,
so
instead of:
AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()

do:
AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent

simple, non?
Secondly, if you are going to use Command instead of Click (which you
probably want to in this case), your 2nd parameter needs to be of type
System.Web.UI.WEbControls.CommandEventArgs. ImageclickEventArgs is for the click event
Lastly, consider using LnkImage.CommandArgument = "ib" & oArray(i,id) and use e.commandArgument as your parameter in your redirect. This way
LnkImage
doesn't have to be declared as a global property - simply scope it where
you
create it and forget about it.

Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"UGH" <no****@noSPam.com> wrote in message
news:OB**************@TK2MSFTNGP11.phx.gbl...

I am adding image buttons dynamically and I need to add event handler
when
the user clicks on one of those image buttons which will have different
id
for reports.

Here is my code

LnkImage = New ImageButton()
LnkImage.ImageUrl = "~/printer.gif"
LnkImage.ID = "ib" & oArray(1, id)
AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()
cellItem.Controls.Add(LnkImage)

here is the handler

Private Sub NewIbnCommandEvent(ByVal sender As System.Object, ByVal e As System.Web.UI.ImageClickEventArgs)
' Will do something here
Reponse.redirect(""~/appt.aspx?appt_id=" & LnkImage.ID")
End Sub

But I get this error message. Argument not specified for parameter 'e' of 'Private Sub NewIbnCommandEvent(sender As Object, e As
System.Web.UI.ImageClickEventArgs)'.

I do not know what to put in between the () AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()

Thanks for any help.

[UGH]

It is not clear to me but I figured out what you meant however the handler
that I added does not fired when I click on the button.

"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:%2****************@TK2MSFTNGP15.phx.gbl...

If you read my original reply, you'll see that I addressed this...it's my
second point.

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/
"UGH" <no****@noSPam.com> wrote in message
news:uq**************@TK2MSFTNGP11.phx.gbl...

I otok out the () but it still gives me the error.

XXXXXXX.aspx.vb(218): Method 'Private Sub NewIbnCommandEvent()' does not
have the same signature as delegate 'Delegate Sub

CommandEventHandler(sender

As Object, e As System.Web.UI.WebControls.CommandEventArgs)'.

"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:%2****************@TK2MSFTNGP15.phx.gbl...

> Couple things,
>
> first to get rid of the error, simply remove the () after the
> addressof,
> so
> instead of:
> AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()
>
> do:
> AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent
>
> simple, non?
>
>
> Secondly, if you are going to use Command instead of Click (which you
> probably want to in this case), your 2nd parameter needs to be of type
> System.Web.UI.WEbControls.CommandEventArgs. ImageclickEventArgs is for the > click event
>
>
> Lastly, consider using LnkImage.CommandArgument = "ib" & oArray(i,id) and > use e.commandArgument as your parameter in your redirect. This way
> LnkImage
> doesn't have to be declared as a global property - simply scope it
> where
> you
> create it and forget about it.
>
> Karl
> --
> MY ASP.Net tutorials
> http://www.openmymind.net/
>
>
> "UGH" <no****@noSPam.com> wrote in message
> news:OB**************@TK2MSFTNGP11.phx.gbl...
>> I am adding image buttons dynamically and I need to add event handler
>> when
>> the user clicks on one of those image buttons which will have
>> different
>> id
>> for reports.
>>
>> Here is my code
>>
>> LnkImage = New ImageButton()
>> LnkImage.ImageUrl = "~/printer.gif"
>> LnkImage.ID = "ib" & oArray(1, id)
>> AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()
>> cellItem.Controls.Add(LnkImage)
>>
>> here is the handler
>>
>> Private Sub NewIbnCommandEvent(ByVal sender As System.Object, ByVal e As >> System.Web.UI.ImageClickEventArgs)
>> ' Will do something here
>> Reponse.redirect(""~/appt.aspx?appt_id=" & LnkImage.ID")
>> End Sub
>>
>> But I get this error message. Argument not specified for parameter 'e' of >> 'Private Sub NewIbnCommandEvent(sender As Object, e As
>> System.Web.UI.ImageClickEventArgs)'.
>>
>> I do not know what to put in between the () AddHandler LnkImage.Command, >> AddressOf NewIbnCommandEvent()
>>
>> Thanks for any help.
>>
>>
>>
>>
>
>

[Karl Seguin]

The linkimage must be added on postback and must have the handler hooked
then. In other words you CAN'T wrap the code in a if not page.ispostback.

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/
"UGH" <no****@noSPam.com> wrote in message
news:u$**************@TK2MSFTNGP11.phx.gbl...

It is not clear to me but I figured out what you meant however the handler
that I added does not fired when I click on the button.

"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:%2****************@TK2MSFTNGP15.phx.gbl...

If you read my original reply, you'll see that I addressed this...it's my second point.

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/
"UGH" <no****@noSPam.com> wrote in message
news:uq**************@TK2MSFTNGP11.phx.gbl...

I otok out the () but it still gives me the error.

XXXXXXX.aspx.vb(218): Method 'Private Sub NewIbnCommandEvent()' does not have the same signature as delegate 'Delegate Sub

CommandEventHandler(sender

As Object, e As System.Web.UI.WebControls.CommandEventArgs)'.

"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:%2****************@TK2MSFTNGP15.phx.gbl...
> Couple things,
>
> first to get rid of the error, simply remove the () after the
> addressof,
> so
> instead of:
> AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()
>
> do:
> AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent
>
> simple, non?
>
>
> Secondly, if you are going to use Command instead of Click (which you
> probably want to in this case), your 2nd parameter needs to be of type > System.Web.UI.WEbControls.CommandEventArgs. ImageclickEventArgs is for

the

> click event
>
>
> Lastly, consider using LnkImage.CommandArgument = "ib" & oArray(i,id)

and

> use e.commandArgument as your parameter in your redirect. This way
> LnkImage
> doesn't have to be declared as a global property - simply scope it
> where
> you
> create it and forget about it.
>
> Karl
> --
> MY ASP.Net tutorials
> http://www.openmymind.net/
>
>
> "UGH" <no****@noSPam.com> wrote in message
> news:OB**************@TK2MSFTNGP11.phx.gbl...
>> I am adding image buttons dynamically and I need to add event

handler >> when
>> the user clicks on one of those image buttons which will have
>> different
>> id
>> for reports.
>>
>> Here is my code
>>
>> LnkImage = New ImageButton()
>> LnkImage.ImageUrl = "~/printer.gif"
>> LnkImage.ID = "ib" & oArray(1, id)
>> AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()
>> cellItem.Controls.Add(LnkImage)
>>
>> here is the handler
>>
>> Private Sub NewIbnCommandEvent(ByVal sender As System.Object, ByVal

e As

>> System.Web.UI.ImageClickEventArgs)
>> ' Will do something here
>> Reponse.redirect(""~/appt.aspx?appt_id=" & LnkImage.ID")
>> End Sub
>>
>> But I get this error message. Argument not specified for parameter

'e' of

>> 'Private Sub NewIbnCommandEvent(sender As Object, e As
>> System.Web.UI.ImageClickEventArgs)'.
>>
>> I do not know what to put in between the () AddHandler

LnkImage.Command,

>> AddressOf NewIbnCommandEvent()
>>
>> Thanks for any help.
>>
>>
>>
>>
>
>

[UGH]

got it, wow this was a little tuff for me to grasp.
Thanks

"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:%2***************@TK2MSFTNGP12.phx.gbl...

The linkimage must be added on postback and must have the handler hooked
then. In other words you CAN'T wrap the code in a if not page.ispostback.

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/
"UGH" <no****@noSPam.com> wrote in message
news:u$**************@TK2MSFTNGP11.phx.gbl...

It is not clear to me but I figured out what you meant however the
handler
that I added does not fired when I click on the button.

"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:%2****************@TK2MSFTNGP15.phx.gbl...

> If you read my original reply, you'll see that I addressed this...it's my > second point.
>
> Karl
>
> --
> MY ASP.Net tutorials
> http://www.openmymind.net/
>
>
> "UGH" <no****@noSPam.com> wrote in message
> news:uq**************@TK2MSFTNGP11.phx.gbl...
>> I otok out the () but it still gives me the error.
>>
>> XXXXXXX.aspx.vb(218): Method 'Private Sub NewIbnCommandEvent()' does not >> have the same signature as delegate 'Delegate Sub
> CommandEventHandler(sender
>> As Object, e As System.Web.UI.WebControls.CommandEventArgs)'.
>>
>>
>>
>> "Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME
>> net>
>> wrote in message news:%2****************@TK2MSFTNGP15.phx.gbl...
>> > Couple things,
>> >
>> > first to get rid of the error, simply remove the () after the
>> > addressof,
>> > so
>> > instead of:
>> > AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()
>> >
>> > do:
>> > AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent
>> >
>> > simple, non?
>> >
>> >
>> > Secondly, if you are going to use Command instead of Click (which
>> > you
>> > probably want to in this case), your 2nd parameter needs to be of type >> > System.Web.UI.WEbControls.CommandEventArgs. ImageclickEventArgs is for > the
>> > click event
>> >
>> >
>> > Lastly, consider using LnkImage.CommandArgument = "ib" &
>> > oArray(i,id)
> and
>> > use e.commandArgument as your parameter in your redirect. This way
>> > LnkImage
>> > doesn't have to be declared as a global property - simply scope it
>> > where
>> > you
>> > create it and forget about it.
>> >
>> > Karl
>> > --
>> > MY ASP.Net tutorials
>> > http://www.openmymind.net/
>> >
>> >
>> > "UGH" <no****@noSPam.com> wrote in message
>> > news:OB**************@TK2MSFTNGP11.phx.gbl...
>> >> I am adding image buttons dynamically and I need to add event handler >> >> when
>> >> the user clicks on one of those image buttons which will have
>> >> different
>> >> id
>> >> for reports.
>> >>
>> >> Here is my code
>> >>
>> >> LnkImage = New ImageButton()
>> >> LnkImage.ImageUrl = "~/printer.gif"
>> >> LnkImage.ID = "ib" & oArray(1, id)
>> >> AddHandler LnkImage.Command, AddressOf NewIbnCommandEvent()
>> >> cellItem.Controls.Add(LnkImage)
>> >>
>> >> here is the handler
>> >>
>> >> Private Sub NewIbnCommandEvent(ByVal sender As System.Object, ByVal e > As
>> >> System.Web.UI.ImageClickEventArgs)
>> >> ' Will do something here
>> >> Reponse.redirect(""~/appt.aspx?appt_id=" & LnkImage.ID")
>> >> End Sub
>> >>
>> >> But I get this error message. Argument not specified for parameter 'e' > of
>> >> 'Private Sub NewIbnCommandEvent(sender As Object, e As
>> >> System.Web.UI.ImageClickEventArgs)'.
>> >>
>> >> I do not know what to put in between the () AddHandler
> LnkImage.Command,
>> >> AddressOf NewIbnCommandEvent()
>> >>
>> >> Thanks for any help.
>> >>
>> >>
>> >>
>> >>
>> >
>> >
>>
>>
>
>