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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 211001 to 212000 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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