Hi nauna,

Refer below code.

HTML

<asp:ListView ID="ListView2" runat="server" OnItemCommand="ListView2_ItemCommand">
    <ItemTemplate>
        <ul class="no-padding no-margin">
            <li>
                <asp:Label ID="Label2" runat="server" Text='<%# Eval("time") %>'></asp:Label></li>
            <li>
                <asp:LinkButton ID="btn1" runat="server" Text="Click" CommandName="selection1"> </asp:LinkButton>
            </li>
            <li>
                <asp:CheckBox runat="server" AutoPostBack="true" OnCheckedChanged="OnCheckedChanged" />
                <asp:RadioButton runat="server" AutoPostBack="true" OnCheckedChanged="OnCheckedChanged" />
            </li>
        </ul>
    </ItemTemplate>
</asp:ListView>
<div class="loading" align="center" runat="server" id="loadergif">
    Loading. Please wait.<br />
    <br />
    <img src="loader.gif" alt="" />
</div>
<style type="text/css">
    .modal {
        position: fixed;
        top: 0;
        left: 0;
        background-color: black;
        z-index: 99;
        opacity: 0.8;
        filter: alpha(opacity=80);
        -moz-opacity: 0.8;
        min-height: 100%;
        width: 100%;
    }

    .loading {
        font-family: Arial;
        font-size: 10pt;
        border: 5px solid #67CFF5;
        width: 200px;
        height: 100px;
        display: none;
        position: fixed;
        background-color: White;
        z-index: 999;
    }
</style>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
    function ShowProgress() {
        setTimeout(function () {
            var modal = $('<div />');
            modal.addClass("modal");
            $('body').append(modal);
            var loading = $(".loading");
            loading.show();
            var top = Math.max($(window).height() / 2 - loading[0].offsetHeight / 2, 0);
            var left = Math.max($(window).width() / 2 - loading[0].offsetWidth / 2, 0);
            loading.css({ top: top, left: left });
        }, 50);
    }
    $('[id*=ListView2]').live("click", function () {
        var $btn = $(document.activeElement);
        if ($btn[0].tagName == 'A' && $btn[0].text == 'Click') {
            ShowProgress();
        }
    });
</script>

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        BindData();
    }
}

private void BindData()
{
    System.Data.DataTable dt = new System.Data.DataTable();
    dt.Columns.Add("time");
    dt.Rows.Add(DateTime.Now);
    ListView2.DataSource = dt;
    ListView2.DataBind();
}

protected void ListView2_ItemCommand(object sender, ListViewCommandEventArgs e)
{
    if (e.CommandName == "selection1")
    {
        System.Threading.Thread.Sleep(2000);
        string script = "$(document).ready(function () { $('[id*=ListView2]').find('a').click(); });";
        ClientScript.RegisterStartupScript(this.GetType(), "load", script, true);
    }
}

protected void OnCheckedChanged(object sender, EventArgs e)
{

}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        BindData()
    End If
End Sub

Private Sub BindData()
    Dim dt As Data.DataTable = New Data.DataTable()
    dt.Columns.Add("time")
    dt.Rows.Add(DateTime.Now)
    ListView2.DataSource = dt
    ListView2.DataBind()
End Sub

Protected Sub ListView2_ItemCommand(ByVal sender As Object, ByVal e As ListViewCommandEventArgs)
    If e.CommandName = "selection1" Then
        System.Threading.Thread.Sleep(2000)
        Dim script As String = "$(document).ready(function () { $('[id*=ListView2]').find('a').click(); });"
        ClientScript.RegisterStartupScript(Me.[GetType](), "load", script, True)
    End If
End Sub

Protected Sub OnCheckedChanged(ByVal sender As Object, ByVal e As EventArgs)
End Sub

Screenshot