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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 215001 to 216000 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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