migrating Document.Write to Code Behind

[Jeronimo Bertran]

This may be a very simple question.

I have some old java code that uses scripting to dynamically create a <MAP>
in my HTML.


<map name="Map">
<script>
var i;
for (i=0; i<arr.length; i++)
{
document.write("<area onmouseover='OnMouseOver(" + i + ")'
href='javascript:ShowDetails(" + arr.Id + ")' shape=circle coords='" +
arr.X + "," + arr.Y + ",5'>\r\n");
}

</script>
</map>


I am now converting this code to C# and trying to use Code Behind. How can
I achieve the same result?

Thanks

Jeronimo

 

[Jacob Yang [MSFT]]

Hi Jeronimo,

As I understand, what you really need is emit client-side script blocks in
the server side. We can use the Page.RegisterStartupScript Method. Please
refer to the following URL for the detailed information and code snippet.

Page.RegisterStartupScript Method
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/
frlrfsystemwebuipageclassregisterstartupscripttopic.asp

Does it answer your question? If I have misunderstood your concern, please
feel free to let me know.

Best regards,

Jacob Yang
Microsoft Online Partner Support
Get Secure! ¨C www.microsoft.com/security
This posting is provided "as is" with no warranties and confers no rights.

 

[Jeronimo Bertran]

Hi Jacob

After re-reading my question I realized how poorly I had described it.
Here's another shot:

I need to create a map object dynamically. The number of areas in the map
is variable and needs to be created dynamically.

example:

<img src="Img/map01.gif" border="0" usemap="#Map">
<map name="Map">
<area onmouseover="OnMouseOver(0)" href="javascript:void(0)" shape=circle
coords='10,20,5'>

<area onmouseover="OnMouseOver(1)" href="javascript:void(0)" shape=circle
coords='40,33,5'>
</map>


My question is, if I create a WebControl that includes an image object and
create the image programatically by using the HtmlImage class, is their a
way to create the map object and assign it to the image?

Thanks!!
Jeronimo

 

[alex bowers]

Jeronimo,
Creating the map dynamically can be done on the server
either by designing a custom control that renders html as
you wish, or by adding the script using one of the
Page.RegisterScript methods as Jacob suggests.
You can assign the map to the image on the server by
accessing the image's attributes collection. eg
Image1.Attributes.Add("usemap","#Map").

Hope this helps you.

alex

 

[Kevin Spencer]

Sure. All you have to do is dynamically build your tag.

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
http://www.takempis.com
Big Things are made up of
Lots of Little Things.