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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 211001 to 212000 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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