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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 168001 to 169000 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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