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<h1>TDatePicker</h1>
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<p><tt>TDatePicker</tt> displays a text box for date input purpose. 
When the text box receives focus, a calendar will pop up and users can
pick up from it a date that will be automatically entered into the text box.
The format of the date string displayed in the text box is determined by
the <tt>DateFormat</tt> property. Valid formats are the combination of the
following tokens:
 
<com:TTextHighlighter Language="text" CssClass="source"> 
Character      Format Pattern (en-US)
---------------------------------------------------------------------
 d              day digit
 dd             padded day digit e.g. 01, 02
 M              month digit
 MM             padded month digit
 MMM            localized abbreviated month names, e.g. Mar, Apr
 MMMM           localized month name, e.g. March, April
 yy             2 digit year
 yyyy           4 digit year
---------------------------------------------------------------------
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<p>
The date of the date picker can be set using the <tt>Date</tt> or <tt>Timestamp</tt>
properties. The <tt>Date</tt> property value must be in the same format as the pattern
specified in the <tt>DateFormat</tt> property. The <tt>Timestamp</tt> property
only accepts integers such as the Unix timestamp.
</p>

<p>
TDatePicker has three <tt>Mode</tt> to show the date picker popup. 
 <ul>
 	<li><tt>Basic</tt> - Only shows a text input, focusing on the input shows the date picker.</li>
	<li><tt>Button</tt> - Shows a button next to the text input, clicking on the button shows the date, button text can be by the <tt>ButtonText</tt> property.</li>
	<li><tt>ImageButton</tt> - Shows an image next to the text input, clicking on the image shows the date picker, image source can be change through the <tt>ImageUrl</tt> property.</li>
 </ul>
</p>

<p>The <tt>CssClass</tt> property can be used to override the css class name 
for the date picker panel. The <tt>CalendarStyle</tt> property changes the overall calendar style. 
The following <tt>CalendarStyle</tt> values are available:
	<ul>
		<li><tt>default</tt> - The default calendar style.</li>
	</ul>
</p>

<p>The <tt>InputMode</tt> property can be set to "TextBox" or "DropDownList" with
default as "TextBox". In <tt>DropDownList</tt> mode, in addition to the popup date picker, three
drop down list (day, month and year) are presented to select the date . 
When <tt>InputMode</tt> equals "DropDownList", the order and appearance of the date, month, and year
will depend on the pattern specified in <tt>DateFormat</tt> property. 
</p>

<p>The popup date picker can be hidden by specifying <tt>ShowCalendar</tt> as false. Much of the
text of the popup date picker can be changed to a different language using the <tt>Culture</tt> property.
</p>

<p>The calendar picker year limit can be set using the <tt>FromYear</tt> and <tt>UpToYear</tt> properties
where <tt>FromYear</tt> is the starting year and <tt>UpToYear</tt> is the last year selectable.
The starting day of the week can be changed by the <tt>FirstDayOfWeek</tt> property, with 0 as Sunday, 1 as Monday, etc.
</p>

<p><b>Note 1:</b> If the <tt>InputMode</tt> is "TextBox", the <tt>DateFormat</tt> should 
only <b>NOT</b> contain <code>MMM</code> or <code>MMMM</code> patterns. The 
server side date parser will not be able to determine the correct date if <code>MMM</code> or
<code>MMMM</code> are used. When <tt>InputMode</tt> equals "DropDownList", all patterns can be used.</p>
 
<p><b>Note 2:</b> When the <tt>TDatePicker</tt> is used together
with a validator, the <tt>DateFormat</tt> property of the validator must be equal to 
the <tt>DateFormat</tt> of the <tt>TDatePicker</tt> <b>AND</b> must set <tt>DataType</tt>="Date" 
on the validator to ensure correct validation. See 
<a href="?page=Controls.Validation#TCompareValidator">TCompareValidator</a>,
<a href="?page=Controls.Validation#TDataTypeValidator">TDataTypeValidator</a> and  
<a href="?page=Controls.Validation#TRangeValidator">TRangeValidator</a> 
for details.</p>
 
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