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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 192001 to 193000 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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