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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 161001 to 162000 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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