Hi
Please refer below Sample.
HTML
<asp:Panel ID="Panel1" runat="server" Height="470px" HorizontalAlign="Left" Width="156px" Style="float: Left">
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<asp:Button ID="btnItEquipments" runat="server" Text="IT Equipment" OnClick="IT_Equipment" />
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<asp:Button ID="Button2" runat="server" Text="Procurement" OnClick="Procurement" />
</asp:Panel>
<asp:Panel ID="pnlMain" runat="server" Style="float: left">
<asp:Panel ID="pnl" runat="server">
<asp:Label ID="lblItEwuipments" runat="server" Visible="false" BorderColor="Black" BorderWidth="1px" BackColor="Red">
IT Equipment means all computers, servers, printers, computer hardware, wired or mobile telephones,
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on-site process control and automation systems, telecommunication assets, and other information technology-related equipment.
</asp:Label>
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<asp:Label ID="lblprocurment" runat="server" Visible="false" BorderColor="Black" BorderWidth="1px" BackColor="Yellow">
Procurement is the process of purchasing goods or services and is usually in reference to business spending.
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Business procurement requires preparation, solicitation, and payment processing, which usually involves several areas of a company.
</asp:Label>
</asp:Panel>
</asp:Panel>
Code
C#
protected void IT_Equipment(object sender, EventArgs e)
{
lblItEwuipments.Visible = true;
lblprocurment.Visible = false;
}
protected void Procurement(object sender, EventArgs e)
{
lblprocurment.Visible = true;
lblItEwuipments.Visible = false;
}
VB.Net
Protected Sub IT_Equipment(ByVal sender As Object, ByVal e As EventArgs)
lblItEwuipments.Visible = True
lblprocurment.Visible = False
End Sub
Protected Sub Procurement(ByVal sender As Object, ByVal e As EventArgs)
lblprocurment.Visible = True
lblItEwuipments.Visible = False
End Sub
Screenshot