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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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