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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 212001 to 213000 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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