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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 294001 to 295000 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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