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using System;
using System.Windows.Controls;
using Pfz.DataTypes;
namespace Pfz.WpfControls
{
/// <summary>
/// Control used to edit Times without dates.
/// </summary>
public class TimeControl:
UserControl,
IValueControl,
IValueContainer<Time>,
IValueContainer<Time?>,
IHasPreferredDataType
{
private ComboBox fComboHour = new ComboBox { Width = 50 };
private ComboBox fComboMinute = new ComboBox { Width = 50 };
private ComboBox fComboSecond = new ComboBox { Width = 50 };
/// <summary>
/// Creates a new TimeControl.
/// </summary>
public TimeControl()
{
var stackPanel = new StackPanel();
stackPanel.Orientation = Orientation.Horizontal;
var gridChildren = stackPanel.Children;
gridChildren.Add(fComboHour);
gridChildren.Add(fComboMinute);
gridChildren.Add(fComboSecond);
p_AddValues(fComboHour, 24);
p_AddValues(fComboMinute, 60);
p_AddValues(fComboSecond, 60);
Content = stackPanel;
}
private void p_AddValues(ComboBox combo, int count)
{
var items = combo.Items;
for (int i=0; i<count; i++)
items.Add(i);
}
private Type fPreferredDataType = typeof(Time);
/// <summary>
/// Gets or sets the preferred type for this control.
/// </summary>
public Type PreferredDataType
{
get
{
return fPreferredDataType;
}
set
{
if (value == fPreferredDataType)
return;
if (value == typeof(Time))
{
fComboHour.Items.RemoveAt(0);
fPreferredDataType = value;
return;
}
if (value == typeof(Time?))
{
fComboHour.Items.Insert(0, "");
fPreferredDataType = value;
return;
}
throw new ArgumentException("PreferredDataType must be Time or Nullable<Time>.");
}
}
/// <summary>
/// Clears the value of this control.
/// </summary>
public void Clear()
{
fComboHour.SelectedIndex = 0;
fComboMinute.SelectedIndex = 0;
fComboSecond.SelectedIndex = 0;
}
/// <summary>
/// Gets or sets a value indicating if this control is read-only.
/// </summary>
public bool IsReadOnly
{
get
{
return !fComboHour.IsEnabled;
}
set
{
fComboHour.IsEnabled = !value;
fComboMinute.IsEnabled = !value;
fComboSecond.IsEnabled = !value;
}
}
/// <summary>
/// Gets or sets the value of this control.
/// </summary>
public Time? Value
{
get
{
var hour = fComboHour.SelectedValue;
if (hour == null || hour.Equals(""))
return null;
return new Time(Convert.ToInt32(hour), fComboMinute.SelectedIndex, fComboSecond.SelectedIndex, 0);
}
set
{
if (!value.HasValue)
{
Clear();
return;
}
var time = value.Value;
fComboHour.SelectedValue = time.Hour;
fComboMinute.SelectedIndex = time.Minute;
fComboSecond.SelectedIndex = time.Second;
}
}
#region IValueContainer Members
object IValueContainer.Value
{
get
{
return Value;
}
set
{
Value = (Time?)value;
}
}
#endregion
#region IValueContainer<Time> Members
Time IValueContainer<Time>.Value
{
get
{
return (Time)Value;
}
set
{
Value = value;
}
}
#endregion
}
}
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I started to program computers when I was 11 years old, as a hobbyist, programming in AMOS Basic and Blitz Basic for Amiga.
At 12 I had my first try with assembler, but it was too difficult at the time. Then, in the same year, I learned C and, after learning C, I was finally able to learn assembler (for Motorola 680x0).
Not sure, but probably between 12 and 13, I started to learn C++. I always programmed "in an object oriented way", but using function pointers instead of virtual methods.
At 15 I started to learn Pascal at school and to use Delphi. At 16 I started my first internship (using Delphi). At 18 I started to work professionally using C++ and since then I've developed my programming skills as a professional developer in C++ and C#, generally creating libraries that help other developers do their work easier, faster and with less errors.
Want more info or simply want to contact me?
Take a look at:
http://paulozemek.azurewebsites.net/
Or e-mail me at: paulozemek@outlook.com
Codeproject MVP 2012, 2015 & 2016
Microsoft MVP 2013-2014 (in October 2014 I started working at Microsoft, so I can't be a Microsoft MVP anymore).