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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 206001 to 207000 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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