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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 199001 to 200000 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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