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From: Brian Cryer on 9 Sep 2010 11:50
"Peter Afonin" <pafonin(a)hotmail.com> wrote in message
news:u5FkWNDULHA.2068(a)TK2MSFTNGP05.phx.gbl...
> Brian,
>
> Yes, I have 5 buttons with the same command name in one gridview, that's
> why I want to get either the button name or the column index.
>
> Of course there are alternative solutions - I can assign the different
> command names, or use the Click event for each button, like this:
>
> protected void ibCreateK_Click(object sender, ImageClickEventArgs e)
> {
> GridViewRow gvRow = (GridViewRow)(sender as Control).Parent.Parent;
> int i = gvRow.RowIndex;
> Label lblAction = (Label)gvRow.FindControl("lblKAction");
> Label lblPlateNumber = (Label)gvRow.FindControl("lblInset2");
> CreateDestroy(lblPlateNumber.Text, lblAction.Text, "K");
>
> }
>
> where CreateDestroy is an actual routine that needs to be executed to
> enter the data into the database.
>
> This will work, but it's pretty bulky and requires a lot of duplicated
> code (I have 5 buttons with one CommandName ("Create") and 5 with another
> ("Destroy"). If I could extract the button name or get the column index I
> could combine all this in one compact routine in the RowCommand event.

I'd forgotten about the FindControl solution.

I can't think of anything else other than the two approaches you've
mentioned (Click & FindControl or different CommandNames).

I don't think your Click event solution is that bulky, not if you move it
into a separate subroutine and in your Click event handler call it with the
names of the control(s) you are after. That way you have 5 one line
functions plus 1 which does all the real work.
--
Brian Cryer
http://www.cryer.co.uk/brian

From: Peter Afonin on 9 Sep 2010 12:07
Yes, that's probably what I'll do.

I'm just surprised a little that there is no easy way to get the the button
name or column index, but I couldn't find anything either.

Thank you,

Peter

"Brian Cryer" <not.here(a)localhost> wrote in message
news:%23yG%23NbDULHA.5912(a)TK2MSFTNGP05.phx.gbl...
> "Peter Afonin" <pafonin(a)hotmail.com> wrote in message
> news:u5FkWNDULHA.2068(a)TK2MSFTNGP05.phx.gbl...
>> Brian,
>>
>> Yes, I have 5 buttons with the same command name in one gridview, that's
>> why I want to get either the button name or the column index.
>>
>> Of course there are alternative solutions - I can assign the different
>> command names, or use the Click event for each button, like this:
>>
>> protected void ibCreateK_Click(object sender, ImageClickEventArgs e)
>> {
>> GridViewRow gvRow = (GridViewRow)(sender as Control).Parent.Parent;
>> int i = gvRow.RowIndex;
>> Label lblAction = (Label)gvRow.FindControl("lblKAction");
>> Label lblPlateNumber = (Label)gvRow.FindControl("lblInset2");
>> CreateDestroy(lblPlateNumber.Text, lblAction.Text, "K");
>>
>> }
>>
>> where CreateDestroy is an actual routine that needs to be executed to
>> enter the data into the database.
>>
>> This will work, but it's pretty bulky and requires a lot of duplicated
>> code (I have 5 buttons with one CommandName ("Create") and 5 with another
>> ("Destroy"). If I could extract the button name or get the column index I
>> could combine all this in one compact routine in the RowCommand event.
>
> I'd forgotten about the FindControl solution.
>
> I can't think of anything else other than the two approaches you've
> mentioned (Click & FindControl or different CommandNames).
>
> I don't think your Click event solution is that bulky, not if you move it
> into a separate subroutine and in your Click event handler call it with
> the names of the control(s) you are after. That way you have 5 one line
> functions plus 1 which does all the real work.
> --
> Brian Cryer
> http://www.cryer.co.uk/brian
>


From: Finn Stampe Mikkelsen on 9 Sep 2010 12:16
"Peter Afonin" <pafonin(a)hotmail.com> skrev i meddelelsen
news:el1HkRuTLHA.2100(a)TK2MSFTNGP04.phx.gbl...
> Hello,
>
> My GridView has several buttons in defferent columns. When the button is
> clicked, is there a way to get a clicked button ID in the
> GridView_RowCommand event?
>
> Thank you,
>
> Peter
>

Hi...

Can you use this.. It returns the controlID for the control, that caused the
postback..

private string getPostBackControlName()
{
Control control = null;
//first we will check the "__EVENTTARGET" because if post back made
by the controls
//which used "_doPostBack" function also available in Request.Form
collection.
string ctrlname = Page.Request.Params["__EVENTTARGET"];
if (ctrlname != null && ctrlname != String.Empty)
{
control = Page.FindControl(ctrlname);
}
// if __EVENTTARGET is null, the control is a button type and we
need to
// iterate over the form collection to find it
else
{
string ctrlStr = String.Empty;
Control c = null;
foreach (string ctl in Page.Request.Form)
{
//handle ImageButton they having an additional
"quasi-property" in their Id which identifies
//mouse x and y coordinates
if (ctl.EndsWith(".x") || ctl.EndsWith(".y"))
{
ctrlStr = ctl.Substring(0, ctl.Length - 2);
c = Page.FindControl(ctrlStr);
}
else
{
c = Page.FindControl(ctl);
}
if (c is System.Web.UI.WebControls.Button ||
c is System.Web.UI.WebControls.ImageButton)
{
control = c;
break;
}
}
}
return control.ID;

}

/Finn

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