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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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