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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 186001 to 187000 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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