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using System.Windows;
using System;
using Pfz.Collections;
namespace Pfz.WpfControls
{
/// <summary>
/// This class contains the dependency properties of the generic
/// PropertyBoundControl and some methods to discover if a DataSource
/// is read-only.
/// </summary>
public static class BoundControl
{
#region DataSourceProperty
/// <summary>
/// The DataSource DependencyProperty.
/// </summary>
public static readonly DependencyProperty DataSourceProperty =
DependencyProperty.RegisterAttached
(
"DataSource",
typeof(object),
typeof(BoundControl),
new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.Inherits, p_DataSourceChanged)
);
private static void p_DataSourceChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs args)
{
IDataSourceChangedHandler handler = dependencyObject as IDataSourceChangedHandler;
if (handler != null)
handler.OnDataSourceChanged(args);
}
/// <summary>
/// Gets the data-source of the given element.
/// </summary>
public static object GetDataSource(UIElement element)
{
return element.GetValue(DataSourceProperty);
}
/// <summary>
/// Sets the data-source to the given element.
/// </summary>
public static void SetDataSource(UIElement element, object value)
{
element.SetValue(DataSourceProperty, value);
}
#endregion
#region IsReadOnlyProperty
/// <summary>
/// The IsReadOnly DependencyProperty.
/// </summary>
public static readonly DependencyProperty IsReadOnlyProperty =
DependencyProperty.RegisterAttached
(
"IsReadOnly",
typeof(bool),
typeof(BoundControl),
new PropertyMetadata(false, p_IsReadOnlyChanged)
);
private static void p_IsReadOnlyChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs args)
{
IIsReadOnlyChangedHandler handler = dependencyObject as IIsReadOnlyChangedHandler;
if (handler != null)
handler.OnIsReadOnlyChanged(args);
}
/// <summary>
/// Gets the IsReadOnly of the given element.
/// </summary>
public static bool GetIsReadOnly(UIElement element)
{
return (bool)element.GetValue(IsReadOnlyProperty);
}
/// <summary>
/// Sets the IsReadOnly of the given element.
/// </summary>
public static void SetIsReadOnly(UIElement element, bool value)
{
element.SetValue(IsReadOnlyProperty, value);
}
#endregion
#region IsDataSourceReadOnly
/// <summary>
/// Checks if the given data-source is read-only.
/// Will use the registered functions for validation.
/// </summary>
public static bool IsDataSourceReadOnly(object dataSource)
{
if (dataSource == null)
return true;
var function = fIsReadOnlyFunctions.FindUpOrDefault(dataSource.GetType());
if (function == null)
return false;
return function(dataSource);
}
#endregion
#region RegisterIsReadOnlyFunction
private static TypeDictionary<Func<object, bool>> fIsReadOnlyFunctions = new TypeDictionary<Func<object, bool>>();
/// <summary>
/// Registers a function to detect if a data-source is read-only.
/// </summary>
public static void RegisterIsReadOnlyFunction(Type objectType, Func<object, bool> function)
{
RegisterIsReadOnlyFunction(objectType, function, false);
}
/// <summary>
/// Registers a function to detect if a data-source is read-only.
/// </summary>
public static void RegisterIsReadOnlyFunction(Type objectType, Func<object, bool> function, bool canUseForSubTypes)
{
fIsReadOnlyFunctions.Set(objectType, function, canUseForSubTypes);
}
#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).