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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 160001 to 161000 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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