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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 218001 to 219000 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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