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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 299001 to 300000 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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