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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 275001 to 276000 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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