C# date time picker null

OnLostFocus EventArgs. OnMarginChanged EventArgs. OnMouseEnter EventArgs. OnMouseHover EventArgs. OnMouseLeave EventArgs. OnMove EventArgs. OnNotifyMessage Message. Notifies the control of Windows messages.

OnPaddingChanged EventArgs. OnPaint PaintEventArgs. Paints the background of the control. OnParentChanged EventArgs. OnPrint PaintEventArgs. OnRegionChanged EventArgs. OnResize EventArgs. OnSizeChanged EventArgs. OnStyleChanged EventArgs. OnTextChanged EventArgs. OnValidated EventArgs. OnValidating CancelEventArgs. OnValueChanged EventArgs. OnVisibleChanged EventArgs. Forces the control to apply layout logic to all its child controls. PerformLayout Control, String. PointToClient Point.

Computes the location of the specified screen point into client coordinates. PointToScreen Point. Computes the location of the specified client point into screen coordinates. PreProcessControlMessage Message. Preprocesses keyboard or input messages within the message loop before they are dispatched. PreProcessMessage Message. ProcessCmdKey Message, Keys. Processes a command key.

ProcessDialogChar Char. Processes a dialog character. ProcessDialogKey Keys. Processes a dialog key. ProcessKeyEventArgs Message. Processes a key message and generates the appropriate control events. ProcessKeyMessage Message. Processes a keyboard message. ProcessKeyPreview Message. Previews a keyboard message. ProcessMnemonic Char. Processes a mnemonic character. Raises the appropriate drag event. Raises the appropriate key event. Raises the appropriate mouse event.

Raises the appropriate paint event. Forces the re-creation of the handle for the control. RectangleToClient Rectangle. Computes the size and location of the specified screen rectangle in client coordinates. RectangleToScreen Rectangle. Computes the size and location of the specified client rectangle in screen coordinates. Provides constants for rescaling the control when a DPI change occurs.

Resumes usual layout logic. ResumeLayout Boolean. Resumes usual layout logic, optionally forcing an immediate layout of pending layout requests. RtlTranslateAlignment ContentAlignment. RtlTranslateAlignment HorizontalAlignment. RtlTranslateContent ContentAlignment. RtlTranslateHorizontal HorizontalAlignment.

Scale Single. Scales the control and any child controls. Scale Single, Single. Scales the entire control and any child controls. Scale SizeF. Scales the control and all child controls by the specified scaling factor.

Scales a logical bitmap value to it's equivalent device unit value when a DPI change occurs. Scales a control's location, size, padding and margin. ScaleCore Single, Single. This method is not relevant for this class.

Activates the control. Select Boolean, Boolean. Activates the next control. Sends the control to the back of the z-order. Sets the bounds of the control to the specified location and size. Sets the specified bounds of the control to the specified location and size. Performs the work of setting the specified bounds of this control.

Sets the size of the client area of the control. SetStyle ControlStyles, Boolean. SetTopLevel Boolean. Sets the control as the top-level control. SetVisibleCore Boolean. Sets the control to the specified visible state. Displays the control to the user. SizeFromClientSize Size. Determines the size of the entire control from the height and width of its client area.

Temporarily suspends the layout logic for the control. Causes the control to redraw the invalidated regions within its client area. Updates the bounds of the control with the current size and location. Updates the bounds of the control with the specified size and location. Updates the bounds of the control with the specified size, location, and client size. Forces the assigned styles to be reapplied to the control.

Updates the control in its parent's z-order. WndProc Message. This event is not relevant for this class. Occurs when the focus or keyboard user interface UI cues change.

Occurs when the control is clicked. Occurs when the control is double-clicked. Occurs when a drag-and-drop operation is completed. Occurs when an object is dragged into the control's bounds. Occurs when an object is dragged out of the control's bounds.

Occurs when an object is dragged over the control's bounds. Occurs when the control is entered. Occurs during a drag operation. Occurs when the control receives focus. Occurs when a handle is created for the control. Occurs when the control's handle is in the process of being destroyed. Occurs when the user requests help for a control.

Occurs when a control's display requires redrawing. Occurs when a key is pressed while the control has focus. Occurs when a character. Occurs when a key is released while the control has focus. Occurs when a control should reposition its child controls.

Occurs when the input focus leaves the control. Occurs when the control loses focus. Occurs when the control's margin changes. Occurs when the control loses mouse capture. Occurs when the control is clicked by the mouse. Occurs when the control is double clicked by the mouse. Occurs when the mouse pointer is over the control and a mouse button is pressed. Occurs when the mouse pointer enters the control.

Occurs when the mouse pointer rests on the control. Occurs when the mouse pointer leaves the control. Occurs when the mouse pointer is moved over the control.

Occurs when the mouse pointer is over the control and a mouse button is released. Occurs when the mouse wheel moves while the control has focus. Occurs when the control is moved. Occurs when the control's padding changes.

It appeared to fire valuechanged events so i just used custom and changed the customformat. Using Vs and having no luck binding a DateTimePicker control. The easiest thing seems to be simply not binding it- handle passing the value of your object to the control and from the control to your object manually.

A few lines of code will save you lots of headaches Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 11 years, 7 months ago. Active 5 years, 5 months ago. Viewed 80k times. Control as DateTimePicker ; if dtp! Value to whatever value the control currently has. Value unchanged - it's not null, so the DTP is fine with it. ToDateTime e. Value ; e. Improve this question.

Aaron W. Sounds like you're either using a different variable or you set it somewhere else. Use the debugger and with a watch, see the changes that are taking place concerning this variable. DateTime is not nullable type. Posted 5-Sep pm Prerak Patel. Don't mix up default time with null. Null should be used to carry semantic if "undetermined time, no time". I would prefer the simpler-to-use variant shown by Mika though, please see. Well, Here is the fundamental stuff of nullable DateTime.

DateTime struct itself does not provide a null option. Posted 5-Sep pm Abhijit J ana. Posted Oct pm Member Null Value pass in datetime field C. Posted Jul am vickey. Posted 5-Sep pm Anil Honey Anil Honey 6-Sep am. We can't assign null value to datetime. I've made some changes to your code so that it can correctly work. Posted 9-Jun pm future Add your solution here. OK Paste as. Based on my understanding, you want to find a DateTimerPicker which can support null value, don't you?

Value must be between DateTime. MinValue and DateTime. Otherwise exception will be raised. Is there any other control which serve the same purpose of DataTimepicker with the null value support. C hecked, DTP1. Value, DBNull. Rows 0 row 0 "field". Is DBNull. Value , Date. Now, tabla. This will throw an error: "Object reference not set to an instance of an object. Maybe this way possible inth.

I found that you can databind to the Tag property, and it will take DBNull. Value, which makes the database do the right things. Thanks Microsoft, for not implementing null for this control, and double thanks for not fixing it after all these years.