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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 281001 to 282000 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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