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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 272001 to 273000 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="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.GridExamplesVBNET.Performance.Virtualization.DefaultVB" %>

<%@ 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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