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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 192001 to 193000 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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