namespace Soluzioni4D.WebControl
{
public class CustomTemplatePagerField : TemplatePagerField
{
public string PageTemplatePath
{
get
{
if (ViewState["PageTemplatePath"] == null)
{
return Resources.Navigation.PagerWebUserControl;
}
return (string)ViewState["PageTemplatePath"];
}
set { ViewState["PageTemplatePath"] = value; }
}

public override ITemplate PagerTemplate
{
get
{
return null;
}
set
{
throw new NotSupportedException();
}
}

public override void CreateDataPagers(DataPagerFieldItem container, int startRowIndex, int maximumRows, int totalRowCount, int fieldIndex)
{
base.CreateDataPagers(container, startRowIndex, maximumRows, totalRowCount, fieldIndex);

if (!string.IsNullOrEmpty(PageTemplatePath))
{
IPagerAccessor _control = container.Page.LoadControl(PageTemplatePath) as IPagerAccessor;

if (_control != null)
{
_control.PageSize = container.Pager.PageSize;
_control.StartRowIndex = container.Pager.StartRowIndex;
_control.TotalRowCount = container.Pager.TotalRowCount;
container.Controls.Add((Control)_control);
}
}
}

protected override void OnPagerCommand(DataPagerCommandEventArgs e)
{

switch (e.CommandName)
{
case "Next":
int _newNextIndex = e.Item.Pager.StartRowIndex + e.Item.Pager.PageSize;

if (_newNextIndex <= e.TotalRowCount)
{
e.NewStartRowIndex = _newNextIndex;
e.NewMaximumRows = e.Item.Pager.MaximumRows;
}

break;
case "Previus":
int _newPreviusIndex = e.Item.Pager.StartRowIndex - e.Item.Pager.PageSize;

if (_newPreviusIndex >= 0)
{
e.NewStartRowIndex = _newPreviusIndex;

e.NewMaximumRows = e.Item.Pager.MaximumRows;
}
break;

}
}
}
}

public partial class Shared_UserControl_PagerWebUserControl : UserControlBase<object>, IPagerAccessor
{
public int TotalRowCount { get; set; }

public int StartRowIndex { get; set; }

public int PageSize { get; set; }
} 

<%--Tasto indietro--%>

<asp:LinkButton CssClass="PreviusButton" runat="server" CommandName="Previus" ID="_previusLinkButton">
<span>
<asp:Literal ID="Literal1" runat="server" Text="<%$ Resources:Shared, Indietro %>" />
</span>
</asp:LinkButton>
<%-- Pagine --%>

<div class="PagerInfo">
<div>
<span>
<asp:Literal ID="_pageLabel" runat="server" Text="<%$ Resources:Shared, Pagina %>"></asp:Literal>
</span>
<span>
<asp:Literal ID="_currentPage" runat="server" Text="<%# TotalRowCount>0 ? (StartRowIndex / PageSize) + 1 : 0 %>"></asp:Literal>
</span>
</div>
<div>
<span>
<asp:Literal ID="_ofPageLabel" runat="server" Text="<%$ Resources:Shared, PaginaDi %>"></asp:Literal>
</span>
<span>
<asp:Literal ID="_totalPages" runat="server" Text="<%# Math.Ceiling ((double)TotalRowCount / PageSize)%>"></asp:Literal>
</span>
</div>
</div>
<%--Tasto avanti--%>
<asp:LinkButton CssClass="NextButton" runat="server" CommandName="Next" ID="_nextLinkkButton">
<span>
<asp:Literal ID="Literal2" runat="server" Text="<%$ Resources:Shared, Avanti %>" />
</span>
</asp:LinkButton>