A time selection control that can be used to display a null value 2

Control | Displays the using System;

Using System.Collections;

Using System.ComponentModel;

Using System.Drawing;

Using System.Data;

Using System.Windows.Forms;



Namespace Xpanglib

{

<summary>

Summary description of the dateinput.

</summary>

public class DateInput:System.Windows.Forms.UserControl

{

#region Member Control



Private System.Windows.Forms.MonthCalendar Calendar;

Private System.Windows.Forms.Form Frmcalendar;

Private System.Windows.Forms.Panel panel3;

Private System.Windows.Forms.Button Btnmain;

Private System.Windows.Forms.VScrollBar UpDown;

Private System.Windows.Forms.Panel Panel1;

Private System.Windows.Forms.Panel Panel2;

Private System.Windows.Forms.Label lbSep3;

Private System.Windows.Forms.TextBox Tbday;

Private System.Windows.Forms.Label LbSep2;

Private System.Windows.Forms.TextBox Tbmonth;

Private System.Windows.Forms.Label LbSep1;

Private System.Windows.Forms.TextBox tbyear;

Private System.Windows.Forms.Label Label2;

Private System.Windows.Forms.Label Lbspace;

#endregion



<summary>

The required designer variable.

</summary>

Private System.ComponentModel.Container components = null;



Private ContextMenu mnu = new ContextMenu ();



#region Custom Properties

[Browsable (True), ReadOnly (false)]

Public size Size

{

Set

{

Base. size = new Size (value. WIDTH,21);

This. SetBounds (base. Location.x,base. Location.y,this. Width,base. Height);

This. Refresh ();

}

Get

{

Return base. Size;

}

}



private string Strdateformat;

[CategoryAttribute ("Show properties and Values"),

TypeConverterAttribute (typeof (Dateformatconverter)),

DescriptionAttribute ("Time display format"),

ReadOnlyAttribute (false)]

public string DateFormat

{

Get

{

return strdateformat;

}

Set

{

Strdateformat = value;

Refreshdisplay ();

}

}





private string Strfomatchar;

[CategoryAttribute ("Show properties and Values"),

DescriptionAttribute ("Custom display format"),

ReadOnlyAttribute (false)]

public string Fomatchar

{

Get

{

return Strfomatchar;

}

Set

{

Strfomatchar = value;

Refreshdisplay ();

}

}





BOOL Blshowupdown = false;



[CategoryAttribute ("Show properties and Values"),

DescriptionAttribute ("Show UpDown button"),

ReadOnlyAttribute (false)]

public bool Showupdown

{

Get

{

return blshowupdown;

}

Set

{

Blshowupdown = value;

this.btnMain.Visible =!value;

This. updown.visible = value;

}

}





Private DateTime Dtvalue;

<summary>

The date selected

</summary>

[CategoryAttribute ("Show properties and Values"),

DescriptionAttribute ("Selected value"),

ReadOnlyAttribute (false)]

Public DateTime Value

{

Get

{

if (IsNull ())

Dtvalue = Datetime.minvalue;

Else

{

string stryear = Tbyear.text;

string strmonth = Tbmonth.text;

string strday = Tbday.text;

String strdate = Stryear + "-" + Strmonth + "-" +strday;

Dtvalue = DateTime.Parse (strdate);

}

return dtvalue;

}

Set

{

Dtvalue = value;

if (Dtvalue = = Datetime.minvalue)

Emptyinput ();

Else

{

Tbyear.text = DtValue.Year.ToString ();

Tbmonth.text = DtValue.Month.ToString ();

Tbday.text = DtValue.Day.ToString ();

}

This. Refresh ();

}

}

#endregion