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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 266001 to 267000 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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