Hi Vasanth,
You can achieve this replacing newline by br tag i.e <br /> as follow ...
<div>
<asp:TextBox ID="txtMessage" runat="server" TextMode="MultiLine" Width="300" Height="100" /><br />
<asp:Button Text="Show in Span" runat="server" OnClick="ShowTextInSpan" /><br />
<span runat="server" id="lblMessage"></span>
</div>
.CS
protected void ShowTextInSpan(object sender, EventArgs e)
{
lblMessage.InnerHtml = txtMessage.Text.Replace(Environment.NewLine,"<br />") ;
}
Thanks and Regards,
Rk_Hirpara