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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 195001 to 196000 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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