search with gridview

Question

i have gridview, in i have implemented search option to search the record . but i want to implement one more functionality like

http://i.tinyuploads.com/sWc7KQ.jpg
like how many recoed have been found according to user search .
eg (10 records founds )

here is my code 

 

<asp:UpdatePanel ID="UpdatePanel1" runat="server">

<ContentTemplate>

<div id="GridviewDiv">

<p>

Enter UserName :

<asp:TextBox ID="txtSearch" runat="server" />&nbsp;&nbsp;

<asp:ImageButton ID="btnSearch" ImageUrl="~/SearchButton.png" runat="server"

Style="top: 5px; position: relative" OnClick="btnSearch_Click" />&nbsp;&nbsp;

<asp:ImageButton ID="btnClear" ImageUrl="~/Clearbutton.png" runat="server" Style="top: 5px; position: relative"

OnClick="btnClear_Click" /><br />

<br />

</p>

<asp:GridView ID="gvDetails" runat="server" Width="332px" AllowPaging="true" AllowSorting="true"

AutoGenerateColumns="false" CssClass="Gridview" PageSize="3" DataSourceID="dsDetails">

<HeaderStyle BackColor="#df5015" />

<Columns>

<asp:TemplateField HeaderText="Name">

<ItemTemplate>

<asp:Label ID="Label1" runat="server" Text='<%#Eval("Name")%>'>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="City">

<ItemTemplate>

<asp:Label ID="Label1" runat="server" Text='<%#Eval("City")%>'>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Sex">

<ItemTemplate>

<asp:Label ID="Label1" runat="server" Text='<%#Eval("Sex")%>'>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>

<asp:SqlDataSource ID="dsDetails" runat="server" ConnectionString="<%$ConnectionStrings:connect %>" SelectCommand="select * from emp" FilterExpression="Name LIKE '%{0}%'">

<FilterParameters>

<asp:ControlParameter Name="Name" ControlID="txtSearch" PropertyName="Text" />

</FilterParameters>

</asp:SqlDataSource>

</div>

</ContentTemplate>

</asp:UpdatePanel>