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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 197001 to 198000 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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