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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...31 32 33 34 35 36 37 38 39 40 ... Item 32001 to 33000 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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