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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 202001 to 203000 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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