HTML:
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
function CallBlink(btn) {
setInterval(function () {
$(btn).each(function () {
$(this)[0].style.display = $(this).is(":hidden") ? "block" : "none";
});
}, 500);
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ListBox ID="ListBox1" runat="server">
<asp:ListItem Text="GetName" />
<asp:ListItem Text="GetName1" />
</asp:ListBox>
<br />
<asp:LinkButton ID="lnkGetName" Text="GetName" runat="server" />
<br />
<asp:LinkButton ID="LinkButton1" Text="GetName1" runat="server" />
</div>
</form>
</body>
</html>
C#:
protected void Page_Load(object sender, EventArgs e)
{
string idName = string.Empty;
foreach (ListItem item2 in ListBox1.Items)
{
foreach (Control ctrl in Page.Controls)
{
foreach (Control c in ctrl.Controls)
{
if (c is LinkButton)
{
LinkButton lbl = (LinkButton)c;
if (lbl.Text == item2.Text) // (lbl.Text.StartsWith(item2.Text))
{
lbl.BackColor = Color.FromName("Red");
//lbl.BackColor = System.Drawing.Color.Red;
idName += "#" + lbl.ID + ",";
}
}
}
}
}
ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "Blink", "CallBlink('" + idName.Remove(idName.Length - 1) + "');", true);
}
Image:

Thank You.