System.Globalization Namespace   DateTimeFormatInfo Class

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Sets or retrieves the string designator for hours that are "ante meridiem" ( before noon ).

[ VB ]
public Property AMDesignator As String

[ C# ]
public string AMDesignator {get; set;}

[ C++ ]
public: __property String* get_AMDesignator ( );
public: __property void set_AMDesignator ( String* );

[ JScript ]
function get AMDesignator ( ) : String;
public function set AMDesignator ( String );

The string designator for hours that are "ante meridiem" ( before noon ). The default for InvariantInfo is "AM".

Exception Type	Condition
ArgumentNullException	The property is being set to a null reference ( Nothing in Visual Basic ).
InvalidOperationException	The property is being set and the DateTimeFormatInfo is read-only.

If the custom pattern includes the format pattern "tt" and the time is before noon, DateTime.ToString displays the value of AMDesignator in place of the "tt" in the format pattern. If the custom pattern includes the format pattern "t", only the first character of AMDesignator is displayed.

The below shows the AMDesignator used for each of the available cultures.

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DateTimeFormatInfo Members   PMDesignator