[asp.net] Changing CSS style from ASP.NET code

Possible Duplicate:
Change CSS Dynamically

I need to change the height of a div container(CSS Property Height) from ASP.NET code (VB).

How can I do that?

This question is related to asp.net css vb.net html

The answer is


I find that code gets messy fast when C# code is used to modify CSS values. Perhaps a better approach is for your code to dynamically set the class attribute on the div tag and then store any specific CSS settings in the style sheet.

That might not work for your situation, but its a decent default position if you need to change the style on the fly in server side code.


VB Version:

Class:

Protected divControl As System.Web.UI.HtmlControls.HtmlGenericControl

OnLoad/Other function:

divControl.Style("height") = "200px"

I've never tried the Add method with the styles. What if the height already exists on the DIV?


As a NOT TO DO - Another way would be to use:

divControl.Attributes.Add("style", "height: number");

But don't use this as its messy and the answer by AviewAnew is the correct way.


I find that code gets messy fast when C# code is used to modify CSS values. Perhaps a better approach is for your code to dynamically set the class attribute on the div tag and then store any specific CSS settings in the style sheet.

That might not work for your situation, but its a decent default position if you need to change the style on the fly in server side code.


As a NOT TO DO - Another way would be to use:

divControl.Attributes.Add("style", "height: number");

But don't use this as its messy and the answer by AviewAnew is the correct way.


VB Version:

Class:

Protected divControl As System.Web.UI.HtmlControls.HtmlGenericControl

OnLoad/Other function:

divControl.Style("height") = "200px"

I've never tried the Add method with the styles. What if the height already exists on the DIV?


If your div is an ASP.NET control with runat="server" then AviewAnew's answer should do it. If it's just an HTML div, then you'd probably want to use JavaScript. Can you add the actual div tag to your question?


I find that code gets messy fast when C# code is used to modify CSS values. Perhaps a better approach is for your code to dynamically set the class attribute on the div tag and then store any specific CSS settings in the style sheet.

That might not work for your situation, but its a decent default position if you need to change the style on the fly in server side code.


As a NOT TO DO - Another way would be to use:

divControl.Attributes.Add("style", "height: number");

But don't use this as its messy and the answer by AviewAnew is the correct way.


If your div is an ASP.NET control with runat="server" then AviewAnew's answer should do it. If it's just an HTML div, then you'd probably want to use JavaScript. Can you add the actual div tag to your question?


I find that code gets messy fast when C# code is used to modify CSS values. Perhaps a better approach is for your code to dynamically set the class attribute on the div tag and then store any specific CSS settings in the style sheet.

That might not work for your situation, but its a decent default position if you need to change the style on the fly in server side code.


If your div is an ASP.NET control with runat="server" then AviewAnew's answer should do it. If it's just an HTML div, then you'd probably want to use JavaScript. Can you add the actual div tag to your question?


VB Version:

Class:

Protected divControl As System.Web.UI.HtmlControls.HtmlGenericControl

OnLoad/Other function:

divControl.Style("height") = "200px"

I've never tried the Add method with the styles. What if the height already exists on the DIV?


As a NOT TO DO - Another way would be to use:

divControl.Attributes.Add("style", "height: number");

But don't use this as its messy and the answer by AviewAnew is the correct way.


VB Version:

Class:

Protected divControl As System.Web.UI.HtmlControls.HtmlGenericControl

OnLoad/Other function:

divControl.Style("height") = "200px"

I've never tried the Add method with the styles. What if the height already exists on the DIV?


If your div is an ASP.NET control with runat="server" then AviewAnew's answer should do it. If it's just an HTML div, then you'd probably want to use JavaScript. Can you add the actual div tag to your question?


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