[转]Customizing the pager 自定义分页

If paging is enabled, r.a.d.grid will render pager item(s) (GridPagerItem) on the top and/or bottom of each GridTableView displayed in the hierarchy.

Pager Appearance

The appearance of the pager item can be controlled using GridTableView.PagerStyle property. As most of appearance options, PagerStyle of each GridTableView can be predefined using RadGrid.PagerStyle property - this would apply to all GridTableViews in the hierarchy unless specified other for a certain table-view.
As PagerStyle extends the TableItemStyle class the settings could apply to item's fore-color, back-color, border style, font etc. GridPagerStyle provides also properties to control the position of the items' PagerStyle.Position - Top, Bottom or TopAndBottom and type of pager buttons that appear.

The Pager buttons allow the user to navigate through the pages - change the display page by setting next or previous or use a page number to directly switch page. Use GridTableView.PagerStyle.Mode property to control the mode pager buttons would be display and would function. Use GridPagerMode.NumericPages to display a button for each page with the corresponding page number. Use GridPagerMode.PrevNext to specify that only buttons for previous/next page would appear.

All properties controlling paging behavior can be set using either development environment designers or programmatically. The values set programmatically are persisted into the view-state providing consistency in grid's page navigation and ease their use.

If you use any other button(s) to control paging in r.a.d.grid in a custom manner, you can use command button(s) with CommandName 'Page' and CommandArgument 'Next', 'Prev', or a number of any page - ex. CommandArgument = "42".

Pager templates

Pager item can use templates for setting its appearance and features. All command buttons in the template can take advantage of the command API. For example a button with CommandName "Page" and CommandArgument of "Last" will force r.a.d.grid to go to the last page when clicked. No additional code is necessary.

Using declarative binding expressions command buttons in the pager can control their visibility based on various paging-related properties provided by the PagerItem.Paging instance.

 

<PagerTemplate>
    <table border="0" cellpadding="5" height="18px" width="100%">
      <tr>
 <td style="border-style:none;">
 <asp:LinkButton ID="LinkButton1" CommandName="Page" CausesValidation="false" CommandArgument="First" runat="server">First</asp:LinkButton>
 </td>
 <td style="border-style:none;">
 <asp:LinkButton ID="LinkButton5" CommandName="Page" CausesValidation="false" CommandArgument="Prev" runat="server">Prev</asp:LinkButton>
 </td>
 <td style="border-style:none;">
 <asp:TextBox ID="tbPageNumber" runat="server" Columns="3" Text='<%# (int)DataBinder.Eval(Container, "OwnerTableView.CurrentPageIndex") + 1 %>' />
    <asp:RangeValidator runat="Server" ID="RangeValidator1" ControlToValidate="tbPageNumber" EnableClientScript="true" MinimumValue="1"
     Type="Integer"
     MaximumValue='<%# DataBinder.Eval(Container, "Paging.PageCount") %>'
     ErrorMessage='<%# "Value must be in the range of 1 - " + DataBinder.Eval(Container, "Paging.PageCount") %>'
     Display="Dynamic"></asp:RangeValidator>
 </td>
 <td style="border-style:none;">
 <asp:LinkButton ID="LinkButton4" runat="server" CommandName="CustomChangePage">Go</asp:LinkButton>
 </td>
 <td style="border-style:none;">
 <asp:LinkButton ID="LinkButton3" CommandName="Page" CausesValidation="false" CommandArgument="Next" runat="server">Next</asp:LinkButton>
 </td>
 <td style="border-style:none;">
 <asp:LinkButton ID="LinkButton2" CommandName="Page" CausesValidation="false" CommandArgument="Last" runat="server">Last</asp:LinkButton>
 </td>
 <td style="border-style:none;width:100%" align="right">
 <asp:LinkButton ID="LinkButton6" CommandName="RebindGrid" CausesValidation="false" runat="server">Refresh data</asp:LinkButton>
 </td>
 </tr>
 </table>
</PagerTemplate>

 

CommandName	CommandArgument	Description
Page	First	Goes to the first page
Page	Last	Goes to the last page
Page	An Integer ("5" for example)	Go to the specified page
Page	Next	Goes to the next page
Page	Previous	Goes to the previous page