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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 267001 to 268000 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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