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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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