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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 216001 to 217000 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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