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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 141001 to 142000 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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