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Date Pickers slowing page load to over 1 minute Options
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Colin
Posted: Thursday, July 3, 2008 5:29:47 AM
Rank: Advanced Member
Groups: Member

Joined: 2/1/2008
Posts: 35
Hi,

I have a form with 40 rows each requiring their own DatePicker to choose a date relevant to that row/record.

When I place the DatePickers on the form, it takes 90 seconds to load in a browser, when I remove the DatePickers, it only takes 2 seconds.

The form and all the DatePickers sit inside an Ajax Update Panel, if the DatePickers are set to visible = false, the form loads within 2 seconds.

The DatePicker code is further below and doesn't appear tp create a problem apart from where it states "width" & valign "centre" for the todays date section which throws a newer construct is recommended.

Please advise what is taking so long to render the page and can it be cured.

Regards,
Colin.

<eo:DatePicker ID="DatePicker40" runat="server" ControlSkinID="None" DayCellHeight="15"
DayCellWidth="31" DayHeaderFormat="Short" DisabledDates="" OtherMonthDayVisible="True"
PickerFormat="dd/MM/yyyy" SelectedDates="" Style="left: 80px; position: absolute;
top: 1638px" TitleFormat="MMMM, yyyy" TitleLeftArrowImageUrl="DefaultSubMenuIconRTL"
TitleRightArrowImageUrl="DefaultSubMenuIcon" VisibleDate="2008-06-01" SelectedDate='<%# Bind("CentreSilencerDefDate", "{0:d}") %>' Width="83px" OnPreRender="DatePicker40_PreRender">
<TodayStyle CssText="font-family:Verdana;font-size:8pt;background-image:url('00040401');color:#1176db;" />
<SelectedDayStyle CssText="font-family:Verdana;font-size:8pt;background-image:url('00040403');color:Brown;" />
<PopupExpandEffect Type="GlideLeftToRight" />
<DisabledDayStyle CssText="font-family:Verdana;font-size:8pt;color: gray" />
<FooterTemplate>
<table border="0" cellpadding="0" cellspacing="5" style="font-size: 11px; font-family: Verdana">
<tr>

<td width="30">
</td>
<td valign="center">
<img src="{img:00040401}"></td>
<td valign="center">

Today: {var:today:MM/dd/yyyy}</td>

</tr>
</table>
</FooterTemplate>
<PopupCollapseEffect Type="GlideRightToLeft" />
<PickerStyle CssText="font-size:8pt;" />
<CalendarStyle CssText="background-color:white;border-bottom-color:Silver;border-bottom-style:solid;border-bottom-width:1px;border-left-color:Silver;border-left-style:solid;border-left-width:1px;border-right-color:Silver;border-right-style:solid;border-right-width:1px;border-top-color:Silver;border-top-style:solid;border-top-width:1px;color:#2C0B1E;padding-bottom:5px;padding-left:5px;padding-right:5px;padding-top:5px;" />
<TitleArrowStyle CssText="cursor: hand" />
<DayHoverStyle CssText="font-family:Verdana;font-size:8pt;background-image:url('00040402');color:#1c7cdc;" />
<MonthStyle CssText="cursor:hand;margin-bottom:0px;margin-left:4px;margin-right:4px;margin-top:0px;" />
<TitleStyle CssText="font-family:Verdana;font-size:8.75pt;padding-bottom:5px;padding-left:5px;padding-right:5px;padding-top:5px;" />
<DayHeaderStyle CssText="font-family:Verdana;font-size:8pt;border-bottom: #f5f5f5 1px solid" />
<DayStyle CssText="font-family:Verdana;font-size:8pt;" />
</eo:DatePicker>
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eo_support
Posted: Thursday, July 3, 2008 8:20:30 AM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 24,096
Hi Colin,

You definitely do not want to create 40 DatePickers. As you have discovered, DatePicker is a rather heavy control and 90 of them will take forever to load. We could optimize some but it is not realistic to expect speeding it up from 90 seconds to a few seconds. Usually you should only create one DatePicker and then reuse it because under most design there is only one "active" row/record. You can take a look of our Grid for an example of using it this way:

http://www.essentialobjects.com/Demo/Default.aspx?path=Grid\_i1\_i6

The Grid only uses one DatePicker. The basic idea is to place the DatePicker inside a container element (for example, a div), then call some JavaScript code to show/hide/move the DatePicker when a row is activated.

Thanks
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