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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 191001 to 192000 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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