Using PostBackUrl from a Button inside a Repeater

[Nathan Sokalski]

I have a Button that uses the PostBackUrl property which is inside a
Repeater template. When I get to the Page that is being posted to (the one
specified in PostBackUrl), I am having trouble getting access to the Button
that was clicked, because I cannot use the PreviousPage.FindControl() method
since I do not know the id of the Button. What can I do to get access to a
Button that was inside a Repeater? Thanks.

Nathan Sokalski
nj********@hotmail.com
http://www.nathansokalski.com/

[Eliyahu Goldin]

First thought is to include a some sort of id to PostBackUrl as a query
parameter.

--
Eliyahu Goldin,
Software Developer
Microsoft MVP [ASP.NET]
http://msmvps.com/blogs/egoldin
http://usableasp.net
"Nathan Sokalski" <ns*******@kyledavidgroup.comwrote in message
news:uK**************@TK2MSFTNGP02.phx.gbl...

>I have a Button that uses the PostBackUrl property which is inside a
Repeater template. When I get to the Page that is being posted to (the one
specified in PostBackUrl), I am having trouble getting access to the Button
that was clicked, because I cannot use the PreviousPage.FindControl()
method since I do not know the id of the Button. What can I do to get
access to a Button that was inside a Repeater? Thanks.

Nathan Sokalski
nj********@hotmail.com
http://www.nathansokalski.com/

[George]

"Nathan Sokalski" <ns*******@kyledavidgroup.comwrote in message
news:uK**************@TK2MSFTNGP02.phx.gbl...

>I have a Button that uses the PostBackUrl property which is inside a
Repeater template. When I get to the Page that is being posted to (the one
specified in PostBackUrl), I am having trouble getting access to the Button
that was clicked, because I cannot use the PreviousPage.FindControl()
method since I do not know the id of the Button. What can I do to get
access to a Button that was inside a Repeater? Thanks.

Nathan Sokalski
nj********@hotmail.com
http://www.nathansokalski.com/

The way i do it is a bit manual...

Any postback has 2 arguments...
function __doPostBack(eventTarget, eventArgument)
Unfortunatelly i am not sure how to use evenArgument.

So i would dump on my page (not in the repeater) empty (so it's not visible
on the page) LinkButton (id=LinkButton1) and write OnClick code..
and in DataRepeater will put my own <a
href="__doPostBack('<%#LinkButton1.UniqueID%>','<% #Eval(recordID)%>')">Click
here</a>

The in OnClick code i would get the recordId by
string sId = Request.Form["__EVENTARGUMENT"];

Hope you get an idea..
PS: I wrote of the memory so you might have to modify it a little (instead
of UniqueID use ClientID)....

George.

[Nathan Sokalski]

I'm sure there must be (and if there isn't, there should be) a better way,
but here is what I did:

I added a property to the Page I am posting from, and in the Repeater's
ItemCommand event, I set this property. Then in the Page I am posting to, I
use PreviousPage.MyProperty to get the value I set. It requires adding an
extra property to and implementing the ItemCommand on the posting page, but
at least it makes it simple on the Page you are posting to. I guess it's the
best I'll have for now until someone comes up with a better way.

Nathan Sokalski
nj********@hotmail.com
http://www.nathansokalski.com/

"George" <no*****@comcast.netwrote in message
news:%2******************@TK2MSFTNGP05.phx.gbl...

"Nathan Sokalski" <ns*******@kyledavidgroup.comwrote in message
news:uK**************@TK2MSFTNGP02.phx.gbl...

>>I have a Button that uses the PostBackUrl property which is inside a
Repeater template. When I get to the Page that is being posted to (the one
specified in PostBackUrl), I am having trouble getting access to the
Button that was clicked, because I cannot use the
PreviousPage.FindControl() method since I do not know the id of the
Button. What can I do to get access to a Button that was inside a
Repeater? Thanks.

Nathan Sokalski
nj********@hotmail.com
http://www.nathansokalski.com/

The way i do it is a bit manual...

Any postback has 2 arguments...
function __doPostBack(eventTarget, eventArgument)
Unfortunatelly i am not sure how to use evenArgument.

So i would dump on my page (not in the repeater) empty (so it's not
visible on the page) LinkButton (id=LinkButton1) and write OnClick code..
and in DataRepeater will put my own <a
href="__doPostBack('<%#LinkButton1.UniqueID%>','<% #Eval(recordID)%>')">Click
here</a>

The in OnClick code i would get the recordId by
string sId = Request.Form["__EVENTARGUMENT"];

Hope you get an idea..
PS: I wrote of the memory so you might have to modify it a little (instead
of UniqueID use ClientID)....

George.

[Ben Amada]

"Nathan Sokalski" <ns*******@kyledavidgroup.comwrote:

What can I do to get access to a Button that was
inside a Repeater? Thanks.

How about putting the ID of the button in a hidden input field via
JavaScript when the button is clicked. The hidden input field will
be
passed on to your new page in the Forms collection. So, the button's
OnClientClick property might look like:

Button1.OnClientClick =
"document.forms[0].elements['hdnButtonId'].value = this.id"

.... and in your postback page, the button's ID will be available,

Request["hdnButtonId"]