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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 291001 to 292000 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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