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using System;
using System.Windows;
using System.Windows.Markup;
using Pfz.Factoring;
namespace Pfz.WpfControls
{
/// <summary>
/// Control that shows the registered editor for a data-type.
/// </summary>
public sealed class SearcherControl:
ContentCreatorControl
{
/// <summary>
/// Initializes the EditorControl class.
/// </summary>
static SearcherControl()
{
DataContextProperty.OverrideMetadata
(
typeof(SearcherControl),
new FrameworkPropertyMetadata
(
_DataContextChanged
)
);
}
private static void _DataContextChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
var control = (SearcherControl)sender;
control.OnDataContextChanged(args.NewValue);
}
private Type _dataType;
/// <summary>
/// Gets or sets the DataType of this control.
/// </summary>
public Type DataType
{
get
{
return _dataType;
}
set
{
if (value == null)
{
_dataType = null;
Content = null;
return;
}
var dataContext = DataContext;
if (dataContext != null && !value.IsAssignableFrom(dataContext.GetType()))
DataContext = null;
_dataType = value;
InvalidateContent();
}
}
/// <summary>
/// Gets the Searcher used by this control.
/// </summary>
public ISearcher Searcher { get; private set; }
private void OnDataContextChanged(object dataContext)
{
if (dataContext == null)
Content = null;
else
InvalidateContent();
}
/// <summary>
/// Creates the Searcher for the appropriate datatype.
/// </summary>
protected override void OnCreateContent()
{
base.OnCreateContent();
var dataContext = DataContext;
var dataType = _dataType;
if (dataType == null)
{
if (dataContext == null)
{
Content = null;
return;
}
dataType = dataContext.GetType();
}
else
{
if (dataContext != null && !dataType.IsAssignableFrom(dataContext.GetType()))
dataContext = null;
}
var factory = Factories<ISearcher>.TryCreateFactory(dataType);
if (factory == null)
{
Content = "Can't find searcher for data type " + dataType.FullName + ".";
return;
}
var searcher = factory.Create();
searcher.FillDefaultParameters(dataContext);
Searcher = searcher;
Content = searcher;
}
}
}
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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).