<asp:Panel ID="Panel1" runat="server">
 </asp:Panel>

Properties

We can change the appearance of panel; we can set the image in the background of panel

Example

Personal information is specified in Panel1 and contact information is specified in panel2.

Here two link buttons are used to show information of panel1 and panel2.

        <asp:LinkButton ID="LinkButton1" runat="server" onclick="LinkButton1_Click">Personal information</asp:LinkButton>
        <asp:LinkButton ID="LinkButton2" runat="server" onclick="LinkButton2_Click">contact information</asp:LinkButton>
<asp:Panel ID="Panel1" runat="server" Font-Bold="True" Font-Underline="False" 
            ForeColor="Red" Height="202px" BackColor="#99FFCC" Width="267px">
            <span class="style1">Personal Information<br />
            Name&nbsp;&nbsp;&nbsp;&nbsp; </span>
            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
            <br class="style1" />
            <span class="style1">&nbsp;Id&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>
            <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
            <br class="style1" />
            <span class="style1">&nbsp;Country</span><asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
            <br class="style1" />
            <span class="style1"></span>
            <asp:Button ID="Button1" runat="server" Text="Save" />
            <br />
        </asp:Panel>
<asp:Panel ID="Panel2" runat="server" Height="202px" BackColor="#66FF99" 
         Width="268px">
         <b>&nbsp;contact Information<br />
         <br />
         &nbsp;mob. no </b>
         <asp:TextBox ID="TextBox4" runat="server" CssClass="style2"></asp:TextBox>
         <b>
         <br />
         email id&nbsp; </b>
         <asp:TextBox ID="TextBox5" runat="server" CssClass="style2"></asp:TextBox>
         <b>
         <br />
          </b>
     <asp:Button ID="Button2" runat="server" CssClass="style2" Text="save" />
         <br />
    </asp:Panel>
  
protected void Page_Load(object sender, EventArgs e)
    {
         Panel1.Visible = false;
         Panel2.Visible = false;
    }
     protected void LinkButton1_Click(object sender, EventArgs e)
    {
         Panel1.Visible = true;
         Panel2.Visible = false;
    }
     protected void LinkButton2_Click(object sender, EventArgs e)
    {
         Panel1.Visible = false;
         Panel2.Visible = true;
    }

 When you click personal information LinkButton then personal information panel will show.

 When you click contact information link button then contact information panel will show.