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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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