ASP.NET

22-Mar-07 7:17

hi
i wanted to build a print button in asp.net 2.0

i wrote the following code

"codebehind"

<br />
<br />
 protected void Button1_Click(object sender, EventArgs e)<br />
    {<br />
        Button1.Attributes.Add("onClick","window.print()");<br />
        Button1.Visible = false;<br />
<br />
    }

now.. the button does disappear, but the print window doesnt come up.

please help.. and i dont want a html input button.

Kunal

kubben22-Mar-07 13:02

22-Mar-07 13:02

For this code to work you need to add the attributes before the button is clicked.

So on the page load event do

if (!IsPostback)
{
Button1.Attributes.Add("onClick","window.print()");
}

Then it should work like you want it to.

Hope that helps.
Ben

Kunal P22-Mar-07 21:12

22-Mar-07 21:12

the thing worked, but theer`s a little problem.

i want the button to go invisible, so that when the printing is done, the button does not show up.

right now as i click the button, the print window comes, and then the button goes invisible.

Kunal

kubben23-Mar-07 2:34

23-Mar-07 2:34

You might want to get rid of the codebehind and do something like this:
Change this line:
Button1.Attributes.Add("onClick","window.print()");
to:
Button1.Attributes.Add("onClick","document.getElementById("+Button1.ClientId+").style.visibility = 'hidden';window.print();");

I think that should work for you.

Ben

Kunal P26-Mar-07 21:09

26-Mar-07 21:09

kubben wrote:
You might want to get rid of the codebehind and do something like this:

did get rid of the codebehind, removed the defintion for "Button1_Click".

and placed the following code in the page_load event

if (!IsPostBack)
{

Button1.Attributes.Add("onClick", "document.getElementById(" + Button1.ClientID + ").style.visibility = 'hidden';window.print();");
}

but nothing seems to happen at all. nor does the button disappear, and neither does the print window come up

Kunal

kubben27-Mar-07 2:38

27-Mar-07 2:38

Ok I did a little playing. It looks like you will need to create a javascript funciton.
In the header section of your html page you need this function:
<head runat="server">
<title>Your page name here</title>
<script type="text/javascript" >
function doPrint(button)
{
button.style.visibility = "hidden";
window.print();
return false;
}
</script>
</head>

Then in the page load event do this:
Button1.Attributes.Add("onClick", "return doPrint(" + Button1.ClientID + ");");

That will work.

NOTE as soon as your page posts back to the server the print button will show up again.

Hope that helps.
Ben

Kunal P27-Mar-07 6:51

27-Mar-07 6:51

thanks ben..

uve been a great help to me.. i dunno if ud remember helping me.. but i do remember the relief i get when i see the answer is from kubben in the forum..

i know.. this problem is no more a problem..
Smile | :)

thx again...

Kunal

kubben27-Mar-07 6:54

27-Mar-07 6:54

Glad I could help out. Sorry I didn't get it right the first time.

Ben

Kunal P27-Mar-07 7:01