Hi ahmeddeeb,
Refer below sample code.
HTML
CS.aspx
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<link type="text/css" rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" />
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<script type="text/javascript" src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<style type="text/css">
.page_enabled
{
background-color: #007AFE;
color: #FFFFFF;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<asp:GridView ID="gvCustomers" runat="server" AutoGenerateColumns="false" PageSize="5">
<Columns>
<asp:BoundField HeaderText="CustomerId" DataField="CustomerID" />
<asp:BoundField HeaderText="ContactName" DataField="ContactName" />
<asp:BoundField HeaderText="CompanyName" DataField="CompanyName" />
</Columns>
</asp:GridView>
<br />
<ul class="pagination">
<asp:Repeater ID="rptPager" runat="server">
<ItemTemplate>
<li class="page-item">
<asp:LinkButton ID="lnkPage" runat="server" Text='<%#Eval("Text") %>' CommandArgument='<%# Eval("Value") %>'
CssClass='<%# Convert.ToBoolean(Eval("Enabled")) ? "page-link" : "page-link page_enabled" %>'
OnClick="Page_Changed" OnClientClick='<%# !Convert.ToBoolean(Eval("Enabled")) ? "return false;" : "" %>'></asp:LinkButton>
</li>
</ItemTemplate>
</asp:Repeater>
</ul>
</form>
</body>
</html>
VB.aspx
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<style type="text/css">
.page_enabled
{
background-color: #007AFE;
color: #FFFFFF;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<asp:GridView ID="gvCustomers" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:BoundField HeaderText="CustomerId" DataField="CustomerID" />
<asp:BoundField HeaderText="ContactName" DataField="ContactName" />
<asp:BoundField HeaderText="CompanyName" DataField="CompanyName" />
</Columns>
</asp:GridView>
<br />
<asp:Repeater ID="rptPager" runat="server">
<ItemTemplate>
<asp:LinkButton ID="lnkPage" runat="server" Text='<%#Eval("Text") %>' CommandArgument='<%# Eval("Value") %>'
CssClass='<%# If(Convert.ToBoolean(Eval("Enabled")), "page-link", "page-link page_enabled")%>'
OnClick="Page_Changed" OnClientClick='<%# If(Not Convert.ToBoolean(Eval("Enabled")), "return false;", "") %>'></asp:LinkButton>
</ItemTemplate>
</asp:Repeater>
</form>
</body>
</html>
Screenshot
