[RESOLVED] Changing CSS on Browser Type?

[seidel1]

In my site, I want to have 3 differet CSS's. When a user goes to the site I want the CSS to be selected programatically based on the browser type the user has.

I check for the browser type in Global.asax and set a flag. But how/where do I programmatically change the CSS based on my flag being true

[dogboydelta]

Create the css classes separately, then for the controls you want to change it:

MyControl.Attributes.Add("cssclass", "IEcss1")

[seidel1]

I don't want to put logic in for each control, that could be a lot of work, Since I am checking on startup for the browser type, can't I just specify the different CSS Class for the entire page?

[seidel1]

I figured it out:

In Global ASAX,

Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs)
        
        Session("Theme") = "FFTheme"
        BrowserCheck()
End Sub
 
    Public Sub BrowserCheck()
        'Detect Client Browser Environment
        Dim strUserAgent ' browser type capture
 
        strUserAgent = UCase(CStr(Request.ServerVariables("HTTP_USER_AGENT")))
 
        'Explorer
        If InStr(strUserAgent, "MSIE 5") Then
            Session("Theme") = "IETheme"
        ElseIf InStr(strUserAgent, "MSIE 6") Then
            Session("Theme") = "IETheme"
        ElseIf InStr(strUserAgent, "MSIE 7") Then
            Session("Theme") = "IETheme"
        End If
 
    End Sub

Than on the page I handle it in pre-init

Protected Sub Page_PreInit(ByVal sender As Object, ByVal e As _ 
    System.EventArgs) Handles Me.PreInit
        Page.Theme = Session("Theme")
    End Sub

[kleinma]

You may also want to implement browsercaps, so that ASP.NET renders HTML 4 instead of 3.2 for firefox.