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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 175001 to 176000 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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