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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 196001 to 197000 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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