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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 200001 to 201000 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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