Mouse hover to select a row form ListView

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On a ListView you can add this functionality directly on the row, something like this:

<asp:ListView ID="ListView3" runat="server">
<ItemTemplate>
  <tr onmouseover="this.oldClass=this.className;this.className='hover';" onmouseout="this.className=this.oldClass;" onclick='<%# Page.ClientScript.GetPostBackClientHyperlink(gdvBuildings, "Select$" + Container.DataItemIndex.ToString()) %>' >
    <td>
      <asp:Label ID="Label7" runat="server" Text='<%# Eval("ClientNumber") %>' />
    </td>
    <td>
      <asp:Label ID="CityNameLabel" runat="server" Text='<%# Eval("FullName") %>' />
    </td>
  </tr>
</ItemTemplate>
<LayoutTemplate>
  <table id="itemPlaceholderContainer" runat="server" border="0" style="">
    <tr id="itemPlaceholder" runat="server">
    </tr>
  </table>
</LayoutTemplate>
</asp:ListView>

If you are using GridView, use the following code:

use to OnRowDataBound event and do something like this

e.Row.Attributes["onmouseover"] = "this.oldClass=this.className;this.className='hover';";
e.Row.Attributes["onmouseout"] = "this.className=this.oldClass;";
e.Row.Attributes["onclick"] = Page.ClientScript.GetPostBackClientHyperlink(gdvBuildings, "Select$" + e.Row.RowIndex.ToString());

Above code from stackoverflow