Use the DateTimePicker control in Visual FoxPro
This article describes how to use the DateTimePicker control in Visual FoxPro.
Original product version: Visual FoxPro
Original KB number: 259646
DTPicker.exe is a sample that shows how to use the ActiveX DateTimePicker control.
The following file is available for download from the Microsoft Download Center:
Download the DTPicker.exe package now. Release Date: Apr-26-2000
For more information about how to download Microsoft Support files, see How to obtain Microsoft support files from online services.
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The DTPicker.exe file contains the following files:
About the DateTimePicker control
The DateTimePicker control enables you to provide a formatted datetime field that allows easy date or time selection. In addition, users can select a date from a drop-down calendar interface similar to the MonthView control.
The DateTimePicker control operates in two modes:
Drop-down Calendar mode (default) - enables the user to display a drop-down calendar that can be used to select a date.
Time Format mode - enables the user to select a field in the date display (such as, the month, day, year, and so forth), and press the UP or DOWN arrow to the right of the control to set its value.
You can navigate to the control by using either the keyboard or the mouse. The drop-down calendar has two buttons that enable you to scroll the months in and out of view.
The DateTimePicker control is part of a group of ActiveX controls that are found in the Mscomct2.ocx file. To use the DateTimePicker control in your application, you must add the Mscomct2.ocx file to the project. When you distribute your application, install the Mscomct2.ocx file in the user's Microsoft Windows System or System32 directory.
About this sample
This sample provides a form containing the DateTimePicker control along with additional controls that allow you to manipulate the various properties on the control and see the results. A number of the controls are set up as read-only because the property they represent from the DateTimePicker control is write only. You can access the current date/time value from the
Object.Value property on the control or from the properties that correspond to the various parts of a datetime value (Year, Month, Day, Hour, Minute, Second, and so forth).
With the DateTimePicker control, you are able to specify a valid range of datetimes as well as the format of the datetime value displayed in the control. The formats available are Long Date (0), Short Date (1), Time (2), and Custom (3). If the Custom format is specified, you can use the format characters supported by the DateTimePicker control to customize the format to your needs.
CustomFormat property is case-sensitive. While the M and MM formats refer to Months, the lower-case values m and mm refer to minutes. You also need to note that h, hh, H, and H refer to hours; the lower case values h and hh refer to hours in the twelve hour format, while the upper case H and HH refer to hours in the twenty-four hour format.
As mentioned earlier, the DateTimePicker is able to operate in one of two modes (Drop-down Calendar or Time Format). This is controlled by the
UpDown property. When the
UpDown property is set to True (.T.), the control is in Time Format mode. This is evident by the appearance of the spinner-like buttons on the far right of the control. In this mode, the user is able to select a part of the datetime value (Month, Day, Year, Hour, Minute, and so forth) and spin through the values until the desired datetime has been reached. When the
UpDown property is set to False (.F.) the control is in Drop-down Calendar mode. This is evident by the appearance of a drop-down button on the far right of the control. In this mode, the time portion of the datetime value will not be changed.
When the Format of the DateTimePicker control is set to Time (2), the
UpDown property is ignored and the control is in Time Format mode.
The DateTimePicker control can have a checkbox enabled in the control. When this checkbox is clear (de-selected), the date and time values that are returned from the control are .NULL. values.
For more information about the DateTimePicker control, please see that topic in the Windows Controls Help file, CMCTL298.CHM, located where you have installed your MSDN Library.
For more information on how to add an ActiveX control to a project, see "Adding Controls to a Project" in the Programmer's Guide.