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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 216001 to 217000 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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