Class

MobileDateTimePicker

Description

Control for choosing a date, time or both.

Events

Name

Parameters

Returns

Closing

DateChanged

value As DateTime

Opening

Enumerations

MobileDateTimePicker.DisplayModes

DisplayModes

The user interface modes that can be used by the DatePicker.

Enum

DateAndTime

DateOnly

TimeOnly

Property descriptions

MobileDateTimePicker.AccessibilityHint

AccessibilityHint As String

The accessibility hint is a longer description that is read aloud when VoiceOver is enabled.

Me.AccessibilityHint = "Click to calculate the value and display the next screen."

MobileDateTimePicker.AccessibilityLabel

AccessibilityLabel As String

The accessibility label of of a control is a short name that is read aloud when VoiceOver is enabled.

Me.AccessibilityLabel = "Calculate the value."

MobileDateTimePicker.CaptionColor

CaptionColor As String

The color of the control's caption.

Important

This property is supported for Android only.

MobileDateTimePicker.CaptionFont

CaptionFont As Font

The font of the control's caption.

Important

This property is supported for Android only.

MobileDateTimePicker.ControlCount

ControlCount As Integer

The number of child controls in the control.

This property is read-only.

Important

This property is supported for iOS only.

MobileDateTimePicker.DateCaption

DateCaption As String

The button caption that appears when the DisplayMode is set to DateOnly.

Important

This property is supported for Android only.

MobileDateTimePicker.DisplayMode

DisplayMode As DisplayModes

Uses DisplayModes to specify how the DateTimePicker should appear.

Change the picker to show time only:

StartTimePicker.DisplayMode = MobileDateTimePicker.DisplayModes.TimeOnly

MobileDateTimePicker.Enabled

Enabled As Boolean

Indicates whether the control is enabled or disabled.

Disable the button:

Button1.Enabled = False

MobileDateTimePicker.Height

Height As Integer

The height of the control.

This property is read-only on iOS.

MobileDateTimePicker.Left

Left As Integer

The left position of the control.

This property is read-only on iOS.

MobileDateTimePicker.LockBottom

LockBottom As Boolean

Determines whether the bottom edge of the control should stay at a set distance from the bottom edge of the parent control, if there is one, or the owning screen.

Important

This property is not currently supported for iOS. Use constraints instead.

This property can be set in the control's Inspector. The following example sets it in code.

Me.LockBottom = True

MobileDateTimePicker.LockLeft

LockLeft As Boolean

Determines whether the left edge of the control should stay at a set distance from the left edge of the parent control, if there is one, or the owning screen.

LockLeft and Locktop default to True when you add a new control to a screen. Existing controls will be altered only if LockRight and/or LockBottom are not set. LockLeft has no effect unless LockRight is True.

Important

This property is not currently supported for iOS. Use constraints instead.

This property can be set in the control's Inspector. The following example sets it in code.

Me.LockLeft = True

MobileDateTimePicker.LockRight

LockRight As Boolean

Determines whether the right edge of the control should stay at a set distance from the right edge of the parent control, if there is one, or the owning screen.

Important

This property is not currently supported for iOS. Use constraints instead.

This property can be set in the control's Inspector. The following example sets it in code.

Me.LockRight = True

MobileDateTimePicker.LockTop

LockTop As Boolean

Determines whether the top edge of the control should stay at a set distance from the top edge of the parent control, if there is one, or the owning screen.

LockTop and LockLeft default to True when you add a control to a screen. Existing controls will be altered only if LockRight and/or LockBottom are not set. LockTop has no effect unless LockBottom is True.

Important

This property is not currently supported for iOS. Use constraints instead.

This property can be set in the control's Inspector. The following example sets it in code.

Me.LockTop = True

MobileDateTimePicker.MaximumDate

MaximumDate As DateTime

The maximum selectable date.

Dates after the maximum date still appear, but cannot be selected.

Set the maximum date to 50 years in the future:

Var futureDate As DateTime
Var interval As New DateInterval
interval.Years = 50
futureDate = DateTime.Now + interval
StartDatePicker.MaximumDate = futureDate

MobileDateTimePicker.MinimumDate

MinimumDate As DateTime

The minimum selectable date.

Dates before the minimum date still appear, but cannot be selected.

Limit the minimum date to 100 years in the past:

Var pastDate As DateTime
Var interval As New DateInterval
interval.Years = -100
pastDate = DateTime.Now + interval
StartDatePicker.MinimumDate = pastDate

MobileDateTimePicker.Name

Name As String

The name of the control.

MobileDateTimePicker.Parent

Parent As MobileUIControl

The parent (sometimes called a "Super") class of the control.

This property is read-only.

MobileDateTimePicker.SelectedDate

SelectedDate As DateTime

The date that appears in the DateTimePicker.

Gets the selected date from the date/time picker:

Var theDate As DateTime
theDate = StartDatePicker.SelectedDate

MobileDateTimePicker.TimeCaption

TimeCaption As String

The button caption that appears when the DisplayMode is set to TimeOnly.

Important

This property is supported for Android only.

MobileDateTimePicker.Top

Top As Integer

The top position of the control.

This property is read-only on iOS.

MobileDateTimePicker.Visible

Visible As Boolean

Indicates whether the control is visible.

Make a button invisible:

Button1.Visible = False

MobileDateTimePicker.Width

Width As Integer

The width of the control.

This property is read-only on iOS.

Method descriptions

MobileDateTimePicker.AddConstraint

AddConstraint(constraint As iOSLayoutConstraint)

Adds a constraint to the control.

This constraint is used by child controls that have been added to this control.

Important

This is supported for iOS only.

MobileDateTimePicker.AddControl

AddControl(child As MobileUIControl)

Adds a child control to the control.

Important

This is supported for iOS only.

MobileDateTimePicker.ClearFocus

ClearFocus

Removes the focus from the control.

TextField1.ClearFocus

MobileDateTimePicker.ControlAt

ControlAt(index As Integer) As MobileUIControl

Gets the child control at the specified index.

Important

This is supported for iOS only.

MobileDateTimePicker.Controls

Controls As Iterable

Allows you to iterate through all the controls that have been added to this control.

Important

This is supported for iOS only.

MobileDateTimePicker.Handle

Handle As Ptr

The handle to the underlying native OS control.

MobileDateTimePicker.Refresh

Refresh

Marks the control so that it will be redrawn during the next event loop.

Call Refresh to force a Canvas to redraw itself:

Canvas1.Refresh

MobileDateTimePicker.RemoveConstraint

RemoveConstraint(constraint As iOSLayoutConstraint)

Removes a constraint from the control.

Important

This is supported for iOS only.

MobileDateTimePicker.RemoveControl

RemoveControl(child As MobileUIControl)

Removes the control from the control.

Important

This is supported for iOS only.

MobileDateTimePicker.SetFocus

SetFocus

Sets the focus to the control.

TextField1.SetFocus

Event descriptions

MobileDateTimePicker.Closing

Closing

Called when the control's layout is closing.

MobileDateTimePicker.DateChanged

DateChanged(value As DateTime)

Called when the selection in the DateTimePicker is changed.

Changing the SelectedDate property does not cause this event to be called.

MobileDateTimePicker.Opening

Opening

Called when the control's layout is opening.

This is where you typically put initialization code.

This example in the Opening event of a label sets its text to "Hello":

Me.Text = "Hello"

Compatibility

Mobile projects on all supported mobile operating systems.

See also

MobileUIControl parent class; DateTime class