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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 165001 to 166000 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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