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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 197001 to 198000 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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