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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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