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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 240001 to 241000 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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