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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 246001 to 247000 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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