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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 160001 to 161000 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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