How to change Asp.net TreeView font

I have created all the CSS class and applied, but the tree view is not changing the font size. After sever rounds of try I minutely examined the view source and could file that the CssClass is used in specifying ASP:Treeview elements is being override by

 style="border-style:none;font-size:1em;"
this 1em is finally being added to the "<a" tags within. As a result, no font-size specifics are effective.

Finally finding no other way, I planned to change the final rendering (I have used this in a Visual web part and used in SharePoint )

using Microsoft.Office.Server.Diagnostics; using Microsoft.SharePoint; using System.IO; using System.Text.RegularExpressions;   #region Changing the Font Size         protected override void Render(HtmlTextWriter writer)         {             try             {                 HtmlTextWriter output = new HtmlTextWriter(new StringWriter());                 base.Render(output);                 string outputString = output.InnerWriter.ToString();                 //strip out all of the inline styles that the asp menu adds                 //outputString = Regex.Replace(outputString, "style=\"*\"", string.Empty);                     if (outputString.Contains("1em;"))                     {                         outputString = outputString.Replace("1em;", "10pt;");                     }                     //outputString = Regex.Replace(outputString,"style=\"border-style: none; font-size: 1em;\"", "style=\"border-style: none;\"");                     writer.Write(outputString);             }             catch (Exception ex)             {                 Microsoft.Office.Server.Diagnostics.PortalLog.LogString("Exception Occured in Left Menu - Control :" + ex.Message);                 throw new SPException("Check Left Menu or Left Menu String");             }         }         #endregion

 

You can use Regex.Replace or String.Replace. If you use Regex.Replace create the regular expression likewise.

If you have a more elegant solution – please post a comment… I’ll be happy to hear.
...HaPpY CoDiNg

Partha (Aurum)

Ref:

http://msdn.microsoft.com/en-us/library/h4kete56.aspx

http://msdn.microsoft.com/en-us/library/ms476607.aspx

http://oreilly.com/windows/archive/csharp-regular-expressions.html

http://www.dotnetperls.com/regex-replace

http://msdn.microsoft.com/en-us/library/xwewhkd1.aspx