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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 296001 to 297000 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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