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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Accounting Manager	Pascale Cartrain	Austria	1 2 3 4 5
2	Sales Consultant	Howard Snyder	France	1 2 3 4 5
3	Sales Associate	Hanna Moos	Bulgaria	1 2 3 4 5
4	Marketing Manager	Antonio Moreno	USA	1 2 3 4 5
5	Marketing Assistant	Matti Karttunen	Brazil	1 2 3 4 5
6	Sales Agent	Paul Henriot	Argentina	1 2 3 4 5
7	Marketing Assistant	Hanna Moos	USA	1 2 3 4 5
8	Sales Associate	Antonio Moreno	USA	1 2 3 4 5
9	Sales Manager	Antonio Moreno	England	1 2 3 4 5
10	Sales Agent	Matti Karttunen	Bulgaria	1 2 3 4 5
11	Sales Agent	Howard Snyder	Germany	1 2 3 4 5
12	Sales Agent	Georg Pipps	Brazil	1 2 3 4 5
13	Sales Representative	Elizabeth Lincoln	France	1 2 3 4 5
14	Marketing Manager	Howard Snyder	Argentina	1 2 3 4 5
15	Sales Consultant	Georg Pipps	Argentina	1 2 3 4 5
16	Marketing Manager	Jaime Yorres	England	1 2 3 4 5
17	Sales Consultant	Georg Pipps	Italy	1 2 3 4 5
18	Sales Manager	Patricio Simpson	Spain	1 2 3 4 5
19	Sales Representative	Pascale Cartrain	England	1 2 3 4 5
20	Accounting Manager	Matti Karttunen	England	1 2 3 4 5
21	Sales Agent	Patricio Simpson	Austria	1 2 3 4 5
22	Marketing Manager	Matti Karttunen	Argentina	1 2 3 4 5
23	Sales Manager	Elizabeth Lincoln	Spain	1 2 3 4 5
24	Sales Consultant	Jaime Yorres	Bulgaria	1 2 3 4 5
25	Sales Manager	Hanna Moos	Bulgaria	1 2 3 4 5
26	Marketing Assistant	Pascale Cartrain	Brazil	1 2 3 4 5
27	Sales Manager	Antonio Moreno	Germany	1 2 3 4 5
28	Sales Representative	Patricio Simpson	Italy	1 2 3 4 5
29	Owner	Jaime Yorres	USA	1 2 3 4 5
30	Sales Associate	Pascale Cartrain	Brazil	1 2 3 4 5
31	Owner	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
32	Marketing Assistant	Patricio Simpson	Spain	1 2 3 4 5
33	Marketing Assistant	Jaime Yorres	USA	1 2 3 4 5
34	Sales Associate	Jaime Yorres	Argentina	1 2 3 4 5
35	Sales Consultant	Matti Karttunen	Argentina	1 2 3 4 5
36	Sales Representative	Patricio Simpson	Spain	1 2 3 4 5
37	Accountant	Patricio Simpson	Germany	1 2 3 4 5
38	Accounting Manager	Matti Karttunen	Bulgaria	1 2 3 4 5
39	Marketing Assistant	Patricio Simpson	USA	1 2 3 4 5
40	Sales Consultant	Patricio Simpson	Bulgaria	1 2 3 4 5
41	Accountant	Patricio Simpson	Spain	1 2 3 4 5
42	Sales Representative	Paul Henriot	Italy	1 2 3 4 5
43	Owner	Howard Snyder	Bulgaria	1 2 3 4 5
44	Sales Associate	Paul Henriot	Austria	1 2 3 4 5
45	Sales Consultant	Patricio Simpson	Germany	1 2 3 4 5
46	Accountant	Antonio Moreno	England	1 2 3 4 5
47	Owner	Patricio Simpson	Bulgaria	1 2 3 4 5
48	Sales Associate	Matti Karttunen	Bulgaria	1 2 3 4 5
49	Marketing Manager	Antonio Moreno	Argentina	1 2 3 4 5
50	Sales Consultant	Matti Karttunen	Bulgaria	1 2 3 4 5
51	Sales Representative	Paul Henriot	Austria	1 2 3 4 5
52	Owner	Georg Pipps	Bulgaria	1 2 3 4 5
53	Marketing Manager	Patricio Simpson	Bulgaria	1 2 3 4 5
54	Sales Representative	Jaime Yorres	Argentina	1 2 3 4 5
55	Marketing Manager	Patricio Simpson	England	1 2 3 4 5
56	Sales Associate	Antonio Moreno	England	1 2 3 4 5
57	Accountant	Paul Henriot	Spain	1 2 3 4 5
58	Sales Associate	Jaime Yorres	Germany	1 2 3 4 5
59	Sales Associate	Howard Snyder	Bulgaria	1 2 3 4 5
60	Sales Associate	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
61	Marketing Manager	Paul Henriot	Bulgaria	1 2 3 4 5
62	Sales Consultant	Georg Pipps	France	1 2 3 4 5
63	Sales Agent	Paul Henriot	France	1 2 3 4 5
64	Sales Associate	Matti Karttunen	Spain	1 2 3 4 5
65	Sales Associate	Howard Snyder	England	1 2 3 4 5
66	Sales Representative	Jaime Yorres	USA	1 2 3 4 5
67	Sales Manager	Hanna Moos	England	1 2 3 4 5
68	Sales Consultant	Patricio Simpson	USA	1 2 3 4 5
69	Accountant	Antonio Moreno	USA	1 2 3 4 5
70	Owner	Howard Snyder	Argentina	1 2 3 4 5
71	Sales Associate	Patricio Simpson	Argentina	1 2 3 4 5
72	Accountant	Elizabeth Lincoln	Brazil	1 2 3 4 5
73	Accountant	Pascale Cartrain	Bulgaria	1 2 3 4 5
74	Sales Consultant	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
75	Owner	Paul Henriot	Bulgaria	1 2 3 4 5
76	Accounting Manager	Jaime Yorres	USA	1 2 3 4 5
77	Sales Manager	Paul Henriot	Bulgaria	1 2 3 4 5
78	Accounting Manager	Jaime Yorres	Argentina	1 2 3 4 5
79	Accounting Manager	Patricio Simpson	Spain	1 2 3 4 5
80	Marketing Assistant	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
81	Accounting Manager	Matti Karttunen	Austria	1 2 3 4 5
82	Sales Agent	Hanna Moos	Brazil	1 2 3 4 5
83	Owner	Matti Karttunen	Austria	1 2 3 4 5
84	Sales Manager	Hanna Moos	USA	1 2 3 4 5
85	Sales Consultant	Pascale Cartrain	Italy	1 2 3 4 5
86	Sales Manager	Pascale Cartrain	Brazil	1 2 3 4 5
87	Accounting Manager	Antonio Moreno	Austria	1 2 3 4 5
88	Sales Consultant	Hanna Moos	England	1 2 3 4 5
89	Accounting Manager	Georg Pipps	Spain	1 2 3 4 5
90	Marketing Manager	Howard Snyder	Italy	1 2 3 4 5
91	Marketing Assistant	Hanna Moos	Austria	1 2 3 4 5
92	Owner	Patricio Simpson	Italy	1 2 3 4 5
93	Sales Associate	Hanna Moos	USA	1 2 3 4 5
94	Sales Representative	Howard Snyder	USA	1 2 3 4 5
95	Sales Manager	Georg Pipps	Austria	1 2 3 4 5
96	Marketing Assistant	Paul Henriot	Italy	1 2 3 4 5
97	Accounting Manager	Howard Snyder	Brazil	1 2 3 4 5
98	Sales Associate	Patricio Simpson	England	1 2 3 4 5
99	Sales Agent	Hanna Moos	USA	1 2 3 4 5
100	Owner	Pascale Cartrain	Argentina	1 2 3 4 5


...291 292 293 294 295 296 297 298 299 300 Item 296001 to 297000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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