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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 191001 to 192000 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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