473,586 Members | 2,639 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

can get forecolor but not background color in Javascript

Bob
Hi,

When clicked into any cell of the table, i want to get the background color
of it. I can get the forecolor but not the bakground color (gives an empty
Alert, no error).
I think i can't change anything in the code-behind, so the error will be in
the javascript code ...

Thanks for your help
Bob

the aspx file:
-----------
<asp:Table ID="table1" runat="server"> </asp:Table>

<script language="javas cript" type="text/javascript">
function tableclick(even t)
{
forecl=window.e vent.srcElement .style.color
// this works
backcl=window.e vent.srcElement .style.backgrou nd //
this not
alert(forecl)
alert(backcl)}
}

the code-behind:
----------------
'creattion of the cells in the table
Dim r As TableRow
Dim c(50, 20) As TableCell
For i = 0 To 50
r = New TableRow()
For j = 0 To 20
c(i, j) = New TableCell()
r.Cells.Add(c(i , j))
Next
Table1.Rows.Add (r)
Next
....
//e.g. the back/forecolor of cell 3,2:
c(3, 2).BackColor = System.Drawing. ColorTranslator .FromHtml("red" )
c(3, 2).ForeColor = System.Drawing. ColorTranslator .FromHtml("yell ow")
//c(3, 2).BackColor = Drawing.Color.R ed
// tried also with this method
....
Jun 17 '06 #1
4 1814
"Bob" <sd*@sdvsd.dc > wrote in
news:ud******** ******@TK2MSFTN GP02.phx.gbl:
When clicked into any cell of the table, i want to get the background
color of it. I can get the forecolor but not the bakground color
(gives an empty Alert, no error).
I think i can't change anything in the code-behind, so the error will
be in the javascript code ...


It's not possible to read the default style properties of a DOM element.
They'll always return 'undefined' or whatever passes for that in
JavaScript.
--
Klaus H. Probst, MVP
http://www.simulplex.net/

Jun 17 '06 #2
Bob
Thanks, but then, how do you explain it works with the forecolor?
There must be a way to do the same with the background ...

"Klaus H. Probst" <us*******@simu lplex.net> wrote in message
news:Xn******** *************** ***********@207 .46.248.16...
"Bob" <sd*@sdvsd.dc > wrote in
news:ud******** ******@TK2MSFTN GP02.phx.gbl:
When clicked into any cell of the table, i want to get the background
color of it. I can get the forecolor but not the bakground color
(gives an empty Alert, no error).
I think i can't change anything in the code-behind, so the error will
be in the javascript code ...


It's not possible to read the default style properties of a DOM element.
They'll always return 'undefined' or whatever passes for that in
JavaScript.
--
Klaus H. Probst, MVP
http://www.simulplex.net/

Jun 17 '06 #3
Bob said the following on 6/17/2006 4:59 AM:
Hi,

When clicked into any cell of the table, i want to get the background color
of it. I can get the forecolor but not the bakground color (gives an empty
Alert, no error).
I think i can't change anything in the code-behind, so the error will be in
the javascript code ...
<snip>
backcl=window.e vent.srcElement .style.backgrou nd //


window.event.sr cElement.style. backgroundColor ;

--
Randy
comp.lang.javas cript FAQ - http://jibbering.com/faq & newsgroup weekly
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/
Jun 17 '06 #4
thanks

"Randy Webb" <Hi************ @aol.com> wrote in message
news:DJ******** *************** *******@comcast .com...
Bob said the following on 6/17/2006 4:59 AM:
Hi,

When clicked into any cell of the table, i want to get the background color of it. I can get the forecolor but not the bakground color (gives an empty Alert, no error).
I think i can't change anything in the code-behind, so the error will be in the javascript code ...


<snip>
backcl=window.e vent.srcElement .style.backgrou nd //


window.event.sr cElement.style. backgroundColor ;

--
Randy
comp.lang.javas cript FAQ - http://jibbering.com/faq & newsgroup weekly
Javascript Best Practices -

http://www.JavascriptToolbox.com/bestpractices/
Jun 18 '06 #5

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

4
5334
by: erik | last post by:
Is it posssible to inherit the previous pages (parent pages) background image? Is there a script out there I could look at? Thanks
4
44313
by: Nathan Given | last post by:
Hello All, I am trying to randomly change the background image of my home page but I can't seem to figure it out. Here is a snippet of my css .... BODY {background:transparent url(../images/homepagebg3.jpg) no-repeat; font:normal 90% Arial, Helvetica, sans-serif; color:#263158;}
11
3183
by: Konrad Den Ende | last post by:
I have a function returning a string but the problem is that the color of it is blue which suits me well for some pages but not for others. Is it possible to "feel" what the color of the background in the current document is and set the color of the output accordingly? The background will be an image, in most cases. -- Kindly Konrad
3
4743
by: Peter Williams | last post by:
Hi All, I want to write some javascript for a html page which does the following. Imagine that the page contains a table with 2 columns and 3 rows, e.g.: +---+---+ | A | B | +---+---+
4
3026
by: rkbnair | last post by:
I have an image placed on an aspx page. <img id="xyz" onMouseOver="abc()" src="c:\temp\ijk.jpg"> My Text to Display How can I change the forecolor of the text 'My Text to display' in function abc()? Either in java or c#
4
5603
by: Tom John | last post by:
Hi I have a ListView that i want to be able to modify the color of particular items depending on whether the value of the item they are about to be replaced with is higher, lower or the same: With QueueListItem.SubItems(ItemCount) If .Text = DataRow.Item(ItemCount) Then .ForeColor = Color.Black ElseIf .Text < DataRow.Item(ItemCount) Then
5
1279
by: Bernie Yaeger | last post by:
When you use xp styles Application.EnableVisualStyles() Application.DoEvents() and you change a control's flat style to 'system', you then are not able to set the control's forecolor, or if you did set it, it reverts to the default
4
5091
by: Stephen | last post by:
greeting folks I would like to change the foreground color for a disabled textbox from the dimmed gray to something else that is easlier readable. I can change the background using the following: textbox1.BackColor = System.Drawing.SystemColors.Control.White however i cant for the life of me figure out the foreground . any help would be...
7
21814
by: moondaddy | last post by:
in asp.net 2.0, i have a link buttonand want to change the forecolor in a mouse over event. how can I do this? -- moondaddy@noemail.noemail
0
7912
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main...
0
8202
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. ...
0
8338
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that...
0
8216
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the...
0
6614
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then...
1
5710
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes...
0
3837
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in...
0
3865
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
1449
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.