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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 290001 to 291000 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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