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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 269001 to 270000 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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