Show Hide Button when mouse is hover (mouseover) on ListView Item (Row) using jQuery in ASP.Net

Here I have created sample that will help you out.

HTML

<div>
    <style type="text/css">
        .ViewButton
        {
            display: none;
        }
        tr:hover .ViewButton
        {
            display: block;
        }
    </style>
    <asp:ListView ID="lvCustomers" runat="server" 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="itemPlaceHolder1"></asp:PlaceHolder>
            </table>
        </LayoutTemplate>
        <ItemTemplate>
            <tr>
                <td>
                    <%# Eval("Id") %>
                </td>
                <td>
                    <%# Eval("Name") %>
                </td>
                <td>
                    <%# Eval("Country") %>
                </td>
                <td>
                    <asp:Button ID="btnView" CssClass="ViewButton" Text="View" runat="server" />
                </td>
            </tr>
        </ItemTemplate>
    </asp:ListView>
</div>

Code

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

private void BindListView()
{
    DataTable dt = new DataTable();
    dt.Columns.AddRange(new DataColumn[3] { new DataColumn("Id", typeof(int)),
                    new DataColumn("Name", 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");
    lvCustomers.DataSource = dt;
    lvCustomers.DataBind();
}

VB

Protected Sub Page_Load(sender As Object, e As EventArgs)
	If Not Me.IsPostBack Then
		Me.BindListView()
	End If
End Sub

Private Sub BindListView()
	Dim dt As New DataTable()
	dt.Columns.AddRange(New DataColumn(2) {New DataColumn("Id", GetType(Integer)), New DataColumn("Name", GetType(String)), New DataColumn("Country", GetType(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")
	lvCustomers.DataSource = dt
	lvCustomers.DataBind()
End Sub

Screenshot