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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 205001 to 206000 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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