Rollover asp.net Button

[Oriane]

Hi there,

I would like to handle a "rollover" <asp:Buttonin the code behind with C#
with this kind of code:

Button btn = Page.FindContro l("Button" + numWidget) as
Button;
btn.Attributes["onmouseove r"] = "document.a ll." +
btn.ClientID + ".src = '/Images/blue.gif'";

This code works for ImageButton...b ut not for Button (it does nothing).

My goal is to change the background image.

Best regards

[Nathan Sokalski]

Re: Rollover asp.net Button

It doesn't work for the Button control because the html input tag doesn't
have a src attribute. But can I also ask why you are using a Button control
when you want to assign it a *.gif file? However, if all you are looking to
do is add a rollover feature to the Button that changes the background
color, you may want to take a look at the AddRolloverBack groundColor
function I have written that is available on my website at:

http://www.nathansokalski.com/code/RolloversClass.aspx

Here is the simple code for the function if you want it separately from the
other rollover functions I have written:

Public Shared Sub AddRolloverBack groundColor(ByV al ctrl As
System.Web.UI.W ebControls.WebC ontrol, ByVal rollover As
System.Drawing. Color, ByVal initial As System.Drawing. Color)
'Adds the background color rollover feature to a WebControl
ctrl.BackColor = initial
ctrl.Attributes .Add("onmouseov er",
String.Format(" this.style.back groundColor='{0 }';",
System.Drawing. ColorTranslator .ToHtml(rollove r)))
ctrl.Attributes .Add("onmouseou t",
String.Format(" this.style.back groundColor='{0 }';",
System.Drawing. ColorTranslator .ToHtml(initial )))
End Sub

As you can see, my code is in VB.NET, but you can obviously convert it into
C# without much trouble. Good Luck!
--
Nathan Sokalski
njsokalski@hotm ail.com

http://www.nathansokalski.com/

"Oriane" <oriane@noemail .noemailwrote in message
news:%23TK7YqxI JHA.508@TK2MSFT NGP05.phx.gbl.. .

Hi there,
>
I would like to handle a "rollover" <asp:Buttonin the code behind with
C# with this kind of code:
>
Button btn = Page.FindContro l("Button" + numWidget) as
Button;
btn.Attributes["onmouseove r"] = "document.a ll." +
btn.ClientID + ".src = '/Images/blue.gif'";
>
This code works for ImageButton...b ut not for Button (it does nothing).
>
My goal is to change the background image.
>
Best regards

[Steven Cheng]

RE: Rollover asp.net Button

Hi Oriane,

The ImageButton and Button differs on their underlying html representation.
You can view the html source of the asp.net page to verify that.

I agree with Nathan that you can try using javascript to change the
style.backgroun dColor or style.backgroun dImage attribute to acheive the
same goal.

http://bytes.com/forum/thread517432.html

http://www.webdeveloper.com/forum/archive/index.php/t-55226.html

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead


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--------------------

>From: "Oriane" <oriane@noemail .noemail>
>Subject: Rollover asp.net Button
>Date: Tue, 30 Sep 2008 18:35:06 +0200

>
>Hi there,
>
>I would like to handle a "rollover" <asp:Buttonin the code behind with

C#

>with this kind of code:
>
Button btn = Page.FindContro l("Button" + numWidget) as
>Button;
btn.Attributes["onmouseove r"] = "document.a ll." +
>btn.ClientID + ".src = '/Images/blue.gif'";
>
>This code works for ImageButton...b ut not for Button (it does nothing).
>
>My goal is to change the background image.
>
>Best regards
>
>

[Oriane]

Re: Rollover asp.net Button

Thanks for your answer