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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 214001 to 215000 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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