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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 201001 to 202000 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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