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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 182001 to 183000 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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