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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 199001 to 200000 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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