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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 162001 to 163000 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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