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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 196001 to 197000 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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