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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 213001 to 214000 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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