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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 166001 to 167000 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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