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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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