Request.Form("__EVENTTARGET") = "" ???

[Dan]

I am trying to use
Request.Form("__EVENTTARGET") to get the name of the control that caused a post back. It keeps returning "".

I am not really sure why, this happens for all of my controls that invoke are invoking a post back.

I've never used this type of method before, but I need to get the name of the control doing the postback in the Form Load event, and cannot wait until the event of the target control that runs due to the postback.

 

[Mythran]

Try Request.Form("__EVENTARGUMENT")



Mythran


I am trying to use
Request.Form("__EVENTTARGET") to get the name of the control that caused a
post back. It keeps returning "".

I am not really sure why, this happens for all of my controls that invoke are
invoking a post back.

I've never used this type of method before, but I need to get the name of the
control doing the postback in the Form Load event, and cannot wait until the
event of the target control that runs due to the postback.

 

[Dan]

same..

just a blank string
Try Request.Form("__EVENTARGUMENT")



Mythran


I am trying to use
Request.Form("__EVENTTARGET") to get the name of the control that caused a post back. It keeps returning "".

I am not really sure why, this happens for all of my controls that invoke are invoking a post back.

I've never used this type of method before, but I need to get the name of the control doing the postback in the Form Load event, and cannot wait until the event of the target control that runs due to the postback.

 

[Aurel]

I have already ask for it, because I have the same pb since i change my framework1.0 to 1.1 !

The answer:
It is not a good way to use Request.Form["__EventTarget"] and eventArgument because Microsoft don't guaranteed that event reference will be always call like this.

Aurel


"Dan" <[email protected]> a écrit dans le message de #[email protected]...
same..

just a blank string
Try Request.Form("__EVENTARGUMENT")



Mythran


I am trying to use
Request.Form("__EVENTTARGET") to get the name of the control that caused a post back. It keeps returning "".

I am not really sure why, this happens for all of my controls that invoke are invoking a post back.

I've never used this type of method before, but I need to get the name of the control doing the postback in the Form Load event, and cannot wait until the event of the target control that runs due to the postback.

 

[Dan]

hmm, so I wonder how I can find out what control caused the postback in the pageload..?
I have already ask for it, because I have the same pb since i change my framework1.0 to 1.1 !

The answer:
It is not a good way to use Request.Form["__EventTarget"] and eventArgument because Microsoft don't guaranteed that event reference will be always call like this.

Aurel


"Dan" <[email protected]> a écrit dans le message de #[email protected]...
same..

just a blank string
Try Request.Form("__EVENTARGUMENT")



Mythran


I am trying to use
Request.Form("__EVENTTARGET") to get the name of the control that caused a post back. It keeps returning "".

I am not really sure why, this happens for all of my controls that invoke are invoking a post back.

I've never used this type of method before, but I need to get the name of the control doing the postback in the Form Load event, and cannot wait until the event of the target control that runs due to the postback.

 

[Alessandro Zifiglio]

Not all controls postback the same way. You got various controls that postback and support different methods. Its been a long time and i dont rem what works with what off the top of my head. You might want to experiement with different methods. Here are the various methods you need to try and use. One of them is got to work for you

If Request.Params.Item("btnSubmit") <> Nothing Then
--Do something---
Else
--Do something else---
End If

If Request.Params("btnSubmit") <> Nothing Then
--Do something---
Else
--Do something else---
End If

If Request.Form("btnSubmit") <> Nothing Then
--Do something---
Else
--Do something else---
End If

string postBackControl = Request.Params.Get("__EVENTTARGET");
hmm, so I wonder how I can find out what control caused the postback in the pageload..?
I have already ask for it, because I have the same pb since i change my framework1.0 to 1.1 !

The answer:
It is not a good way to use Request.Form["__EventTarget"] and eventArgument because Microsoft don't guaranteed that event reference will be always call like this.

Aurel


"Dan" <[email protected]> a écrit dans le message de #[email protected]...
same..

just a blank string
Try Request.Form("__EVENTARGUMENT")



Mythran


I am trying to use
Request.Form("__EVENTTARGET") to get the name of the control that caused a post back. It keeps returning "".

I am not really sure why, this happens for all of my controls that invoke are invoking a post back.

I've never used this type of method before, but I need to get the name of the control doing the postback in the Form Load event, and cannot wait until the event of the target control that runs due to the postback.

 

[Mythran]

And one other way...

If Request("btnSubmit") Is Nothing Then
' The btnSubmit button was NOT clicked.
Else
' The btnSubmit button was clicked.
End If

If using VB

Mythran

Not all controls postback the same way. You got various controls that postback
and support different methods. Its been a long time and i dont rem what works
with what off the top of my head. You might want to experiement with different
methods. Here are the various methods you need to try and use. One of them is got
to work for you

If Request.Params.Item("btnSubmit") <> Nothing Then
--Do something---
Else
--Do something else---
End If

If Request.Params("btnSubmit") <> Nothing Then
--Do something---
Else
--Do something else---
End If

If Request.Form("btnSubmit") <> Nothing Then
--Do something---
Else
--Do something else---
End If

string postBackControl = Request.Params.Get("__EVENTTARGET");
hmm, so I wonder how I can find out what control caused the postback in the
pageload..?
I have already ask for it, because I have the same pb since i change my
framework1.0 to 1.1 !

The answer:
It is not a good way to use Request.Form["__EventTarget"] and eventArgument
because Microsoft don't guaranteed that event reference will be always call like
this.

Aurel


"Dan" <[email protected]> a écrit dans le message de #[email protected]...
same..

just a blank string
Try Request.Form("__EVENTARGUMENT")



Mythran


I am trying to use
Request.Form("__EVENTTARGET") to get the name of the control that
caused a post back. It keeps returning "".

I am not really sure why, this happens for all of my controls that
invoke are invoking a post back.

I've never used this type of method before, but I need to get the
name of the control doing the postback in the Form Load event, and cannot wait
until the event of the target control that runs due to the postback.

 

[bruce barker]

this only set for controls that you set autopostback on, it is blank for <asp:button> or <asp:imagebutton>, as they use the standard form post rules.

-- bruce (sqlwork.com)



I am trying to use
Request.Form("__EVENTTARGET") to get the name of the control that caused a post back. It keeps returning "".

I am not really sure why, this happens for all of my controls that invoke are invoking a post back.

I've never used this type of method before, but I need to get the name of the control doing the postback in the Form Load event, and cannot wait until the event of the target control that runs due to the postback.

 

[Dan]

ok, so how is it possible to acheieve similar results with an ASP:Button ?

Any ideas?
this only set for controls that you set autopostback on, it is blank for <asp:button> or <asp:imagebutton>, as they use the standard form post rules.

-- bruce (sqlwork.com)



I am trying to use
Request.Form("__EVENTTARGET") to get the name of the control that caused a post back. It keeps returning "".

I am not really sure why, this happens for all of my controls that invoke are invoking a post back.

I've never used this type of method before, but I need to get the name of the control doing the postback in the Form Load event, and cannot wait until the event of the target control that runs due to the postback.

 

[vMike]

If your _EVENTTARGET is "" then you would need iterate through your Form Keys maybe Request.Form.AllKeys(i) will work. I have never tried it. One of the keys has the control name and x and another has the controlname and y position I think.


I am trying to use
Request.Form("__EVENTTARGET") to get the name of the control that caused a post back. It keeps returning "".

I am not really sure why, this happens for all of my controls that invoke are invoking a post back.

I've never used this type of method before, but I need to get the name of the control doing the postback in the Form Load event, and cannot wait until the event of the target control that runs due to the postback.