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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 220001 to 221000 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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