How to seach in gridview using key up method like table in html

// Add a gridview to the aspx page and a textbox for search. bind the gridview for populating the data

Put this java script in head of the aspx page

  <script type="text/javascript">
        function filter2(phrase) {
            var words = phrase.value.toLowerCase().split(" ");
            var table = document.getElementById("<%=GridView1.ClientID %>");
            var ele;
            for (var r = 1; r < table.rows.length; r ) {
                ele = table.rows[r].innerHTML.replace(/<[^>] >/g, "");
                var displayStyle = 'none';
                for (var i = 0; i < words.length; i ) {
                    if (ele.toLowerCase().indexOf(words[i]) >= 0)
                        displayStyle = '';
                    else {
                        displayStyle = 'none';
                        break;
                    }
                }
                table.rows[r].style.display = displayStyle;
            }
        }
    </script>

Now add this function "keyup" in the texbox which will be used to enter the keyword like this

 <asp:TextBox ID="TextBox2" runat="server" class="form-control" onkeyup="filter2(this)"></asp:TextBox>