How to remove (hide) Selected Row in ListView control in ASP.Net

This will not delete the Data from Database it will just delete the Data from DataTable that you have kept in ViewState.

HTML

<asp:ListView ID="lvCustomers" runat="server" OnItemDeleting="lvCustomersItemDeleting"
    GroupPlaceholderID="groupPlaceHolder1" ItemPlaceholderID="itemPlaceHolder1">
    <LayoutTemplate>
        <table cellpadding="0" cellspacing="0">
            <tr>
                <th>
                    CustomerId
                </th>
                <th>
                    ContactName
                </th>
                <th>
                    Country
                </th>
                <th>
                </th>
            </tr>
            <asp:PlaceHolder runat="server" ID="groupPlaceHolder1"></asp:PlaceHolder>
        </table>
    </LayoutTemplate>
    <GroupTemplate>
        <tr>
            <asp:PlaceHolder runat="server" ID="itemPlaceHolder1"></asp:PlaceHolder>
        </tr>
    </GroupTemplate>
    <ItemTemplate>
        <td>
            <asp:Label ID="lblCustomerId" Text='<%# Eval("CustomerId") %>' runat="server" />
        </td>
        <td>
            <asp:Label ID="lblContactName" Text='<%# Eval("ContactName") %>' runat="server" />
        </td>
        <td>
            <asp:Label ID="lblCountry" Text='<%# Eval("Country") %>' runat="server" />
        </td>
        <td>
            <asp:LinkButton ID="lnkDelete" CommandName="Delete" runat="server" Text="Delete"></asp:LinkButton>
        </td>
    </ItemTemplate>
</asp:ListView>

Namespace

using System.Data;

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        DataTable dt = new DataTable();
        dt.Columns.AddRange(new DataColumn[3] { new DataColumn("CustomerId", typeof(int)),
                        new DataColumn("ContactName", typeof(string)),
                        new DataColumn("Country",typeof(string)) });
        dt.Rows.Add(1, "John Hammond", "United States");
        dt.Rows.Add(2, "Mudassar Khan", "India");
        dt.Rows.Add(3, "Suzanne Mathews", "France");
        dt.Rows.Add(4, "Robert Schidner", "Russia");
        ViewState["DataTable"] = dt;
        lvCustomers.DataSource = dt;
        lvCustomers.DataBind();
    }
}

protected void lvCustomersItemDeleting(object sender, ListViewDeleteEventArgs e)
{
    DataTable dt = (DataTable)ViewState["DataTable"];
    dt.Rows.RemoveAt(e.ItemIndex);
    ViewState["DataTable"] = dt;
    lvCustomers.DataSource = dt;
    lvCustomers.DataBind();
}