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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 284001 to 285000 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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