how to change a particular font color in gridview with asp.net

body>

cs

public void searchtext()

dv = new DataView();

dv = new DataView(dt);

string SearchExpression = null;

if(txtSearch.Text=="")

lb.Text = "please enter keyword";

else

lb.Visible = false;

if (!String.IsNullOrEmpty(txtSearch.Text))

SearchExpression = string.Format("{0} '%{1}%'", grdSearch.SortExpression, txtSearch.Text);

dv.RowFilter = "FirstName like" + SearchExpression;

int i = dv.Count;

public string Highlight(string InputTxt)

string Search_Str = txtSearch.Text.ToString();

// Setup the regular expression and add the Or operator.

Regex RegExp = new Regex(Search_Str.Replace(" ","").Trim(), RegexOptions.IgnoreCase);

// Highlight keywords by calling the

//delegate each time a keyword is found.

return RegExp.Replace(InputTxt, new MatchEvaluator(ReplaceKeyWords));// Set the RegExp to null.

RegExp = null;

public string ReplaceKeyWords(Match m)

return "" + m.Value + "";