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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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