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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 169001 to 170000 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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