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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 173001 to 174000 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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