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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 235001 to 236000 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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