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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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

<%@ 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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