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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 280001 to 281000 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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