Re: How to fire an event

Hi Daniela,

If the code is C# then it's running on the server :)

The button click event is being raised upon a post-back to the server. Since
you're apparently iterating the rows in the click event handler already I
don't see why you desire the UpdateRowBatch event to be raised. It seems like
an arbitrary choice.

What exactly do you need from this event?

--
Dave Sexton

"Daniela Roman" <danielaroman@xxxxxxxxxx> wrote in message
news:e1ckaAUBHHA.4864@xxxxxxxxxxxxxxxxxxxxxxx
Hi Dave,
There is no script code, I have a check box column and I loop thru the rows,
marking them as checked, all done under a button click event in C#.
Is it client side or server side?
In my oppinion it is server side.

"Dave Sexton" <dave@jwa[remove.this]online.com> wrote in message
news:upQsLBIBHHA.4568@xxxxxxxxxxxxxxxxxxxxxxx
Hi Daniela,

It seems that changing values by code, which is done on client side does
not triger an event. I would need to force a postback. How can it be done?

You should have mentioned that the "code" you spoke of was actually script,
running on the client. I never would have thought that manipulating the
grid in script would cause a server event to be raised.

You can force a post back by dynamically adding the ASP.NET javascript
postback method call to your own client script. This can be done by
calling the GetPostBackEventReference method (Page class in 1.* and
Page.ClientScript in 2.0) on the server to insert the callback into your
own script:

<script type="text/javascript">
function doingThings()
{
// do some things in javascript

// post back to raise the button's click event
<%= ClientScript.GetPostBackEventReference(gridControl, string.Empty) %>
}
</script>

The problem here is that I have no idea whether the grid will raise the
UpdateRowBatch event on a post back. What action in particular raises the
UpdateRowBatch event? What argument needs to be supplied, if any? You
might want to read the grid's documentation and figure out what that event
is intended for before trying to raise it yourself.

The alternative to posting back for the grid control is to post back for
your button control (change "gridControl" to "myButton" in the javascript
above, for example) and perform the actions in code, on the server, as I
suggested in my previous response.

If you don't want to use a button then you can postback to the Page (change
"gridControl" to "this" or "Page" in the javascript above) and implement
IPostBackEventHandler.

Of course I can use the code under the event for the button click event,
but the other one would loop thru all the rows automatically.

If you can do so then it will be much easier (and safer) to iterate all of
the rows yourself when the button is pressed than it would be to try to rig
the event to be raised unnaturally.

Please realize that if what you are trying to accomplish has absolutely
nothing to do with the grid's UpdateRowBatch event then you shouldn't be
using the event at all.

--
Dave Sexton

"Daniela Roman" <danielaroman@xxxxxxxxxx> wrote in message
news:e73uiaHBHHA.4428@xxxxxxxxxxxxxxxxxxxxxxx
It seems that changing values by code, which is done on client side does
not triger an event. I would need to force a postback. How can it be done?

Of course I can use the code under the event for the button click event,
but the other one would loop thru all the rows automatically.


"Dave Sexton" <dave@jwa[remove.this]online.com> wrote in message
news:uFOxT$5AHHA.4060@xxxxxxxxxxxxxxxxxxxxxxx
Hi Daniela,

... and in the mean time, you can possibly solve your problem by placing
the code from the event handler that isn't being called (which you could
call directly anyway) into another method as such:

void gd_UpdateRowBatch(object sender, EventArgs e)
{
CommonMethod();
}

void btn_Click(object sender, EventArgs e)
{
CommonMethod();
}

void CommonMethod()
{
// TODO: something in common
}

If the grid does things that require the event to actually be raised, you
might be able to emulate the effect yourself in the CommonMethod.

GL

--
Dave Sexton

"Daniela Roman" <danielaroman@xxxxxxxxxx> wrote in message
news:emku445AHHA.4568@xxxxxxxxxxxxxxxxxxxxxxx
Thanks. In fact I use a 3-rd party WEB grid control and for some reason
it does not fire the UpdateRowBatch event when I change the values of
the grid thru code. I need to raise that event thru other means.
The sample I provided is not the best example.

Is there another way of firing an event externally?


"Dave Sexton" <dave@jwa[remove.this]online.com> wrote in message
news:eHN$8z5AHHA.4992@xxxxxxxxxxxxxxxxxxxxxxx
Hi Daniela,

I want to fire the grid's event but I don't know how to call the event
and provide the parameter list for it:

There are many events on the DataGrid control. You just have to
perform an action that will cause the grid to raise the desired event.
It's not common to raise Control events externally; Controls raise
their own events internally.

Are you trying to get the PageIndexChanged event to be raised from your
button click event handler?

If so, change the CurrentPageIndex property and the event should be
raised by the DataGrid.

--
Dave Sexton

"Daniela Roman" <danielaroman@xxxxxxxxxx> wrote in message
news:OOLr774AHHA.4592@xxxxxxxxxxxxxxxxxxxxxxx
Hello,

I try to fire an event under a button click event and maybe anybody
can give a clue please.

I have let's say a WEB grid with PageIndexChanged event:

private void DataGrid1_PageIndexChanged(object source,
System.Web.UI.WebControls.DataGridPageChangedEventArgs e)

{

// Set CurrentPageIndex to the page the user clicked.

DataGrid1.CurrentPageIndex = e.NewPageIndex;


// Rebind the data.

DataGrid1.DataBind();

}



Under a button click event:

private void btnUpdtCmd_Click(object sender, System.EventArgs e)

{

}



I want to fire the grid's event but I don't know how to call the event
and provide the parameter list for it:

(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs
e)



Thank you,

Daniela
















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