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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 204001 to 205000 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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