referencing javascript function on button event [ASP .NET]

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From: Andy O'Neill on 1 Apr 2010 05:48

"Mr. Arnold" <Arnold(a)Arnold.com> wrote in message
news:%232IoaKV0KHA.4412(a)TK2MSFTNGP02.phx.gbl...
> JohnE wrote:
>> Hello. I have an asp:Button that in the click event I would like to have
>> it run a javascript function (function ProteusListPrint()). I currently
>> have the following in the click event;
>>
>> btnProteusListPrint.Attributes.Add("onclick", "ProteusListPrint()");
>>
>> This is not working. Am I missing something or is this not the correct
>> way to reference it in the click event of the button (C#)?
>>
>> Thanks... John
>>
>>
>
> You have server side onclick. And you have client side onclick that works
> on the client side where you can access javascript on the client side.
>
> Are you using the right onclick?

By definition, yes he is.

From: Alexey Smirnov on 1 Apr 2010 06:11

On Apr 1, 11:47 am, "Andy O'Neill" <aon14nocannedm...(a)lycos.co.uk>
wrote:
> "Alexey Smirnov" <alexey.smir...(a)gmail.com> wrote in message
>
> news:c6d6bbe7-0e5b-4a57-aa98-a27d079d5061(a)33g2000yqj.googlegroups.com...
>
> >Your code looks correct. You need to check if ProteusListPrint() is
> >working properly. Try to add, for example,
>
> I concur.
> The problem is that the javascript isn't working for whatever reason.
>
> That "Attributes.Add" injects javascript which will run on the client.

I got your point, I see now that he said "in the click event of the
button (C#)". Not sure what does it exactly mean, but for sure the
code has to be in the Page_Load event as it is already mentioned by
Andrew.

From: JohnE on 1 Apr 2010 08:47

"Alexey Smirnov" wrote:

> On Apr 1, 11:47 am, "Andy O'Neill" <aon14nocannedm...(a)lycos.co.uk>
> wrote:
> > "Alexey Smirnov" <alexey.smir...(a)gmail.com> wrote in message
> >
> > news:c6d6bbe7-0e5b-4a57-aa98-a27d079d5061(a)33g2000yqj.googlegroups.com...
> >
> > >Your code looks correct. You need to check if ProteusListPrint() is
> > >working properly. Try to add, for example,
> >
> > I concur.
> > The problem is that the javascript isn't working for whatever reason.
> >
> > That "Attributes.Add" injects javascript which will run on the client.
>
> I got your point, I see now that he said "in the click event of the
> button (C#)". Not sure what does it exactly mean, but for sure the
> code has to be in the Page_Load event as it is already mentioned by
> Andrew.
> .
>

I should have been a bit clearer plus provide further information. Below is
the source code for the button, the full function, and the code behind.

<asp:Button ID="btnProteusListPrint" runat="server" Height="25px"
Width="100px" Text="Print" onclick="btnProteusListPrint_Click" />

function ProteusListPrint()
{
var a = window.open('ProteusListPrint.aspx', '',
'height=500px,width=800px,scrollbars=1');
a.document.close();
a.focus();
a.print();
}

protected void btnProteusListPrint_Click(object sender, EventArgs e)
{
btnProteusListPrint.Attributes.Add("onclick", "ProteusListPrint()");

}

I have found that if I use an html input button and add the function to the
button's onclick in the source code, it works fine. But, if I use an
asp:button it does not. So, if I understand what is being provided, what I
have in the code behind click event should actually go in the page_load?
Then what goes in the click event for when the user clicks on the button on
the webpage?

I am rather new to asp.net/c#/javascript/html so please excuse my newbieness
type questions.

.... John

From: Andrew Morton on 1 Apr 2010 08:57

JohnE wrote:
> I should have been a bit clearer plus provide further information.
> Below is the source code for the button, the full function, and the
> code behind.
>
> <asp:Button ID="btnProteusListPrint" runat="server" Height="25px"
> Width="100px" Text="Print" onclick="btnProteusListPrint_Click" />

Change
onclick="btnProteusListPrint_Click"

to
onClientClick="ProteusListPrint()"

And remove this code:

> protected void btnProteusListPrint_Click(object sender, EventArgs
> e) {
> btnProteusListPrint.Attributes.Add("onclick",
> "ProteusListPrint()");
>
> }

HTH,

Andrew

From: JohnE on 1 Apr 2010 08:59

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