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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 286001 to 287000 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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