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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 162001 to 163000 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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