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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 262001 to 263000 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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