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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 192001 to 193000 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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