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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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