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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 287001 to 288000 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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