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using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Text;
using Pfz.DataTypes;
using Pfz.Extensions;
namespace Pfz.WpfControls
{
/// <summary>
/// This class allows to convert strings to full observable-collections of
/// PropertyBounds.
/// Examples:
/// FullTypeName.* (which will get all properties from that interface type and parent interfaces).
/// FullTypeName:* (which will get all properties from that interface type, without parent interfaces)
/// FullTypeName:PropertyName;OtherPropertyName
/// FullTypeName:PropertyName=Display name;OtherPropertyName=Other display name
/// FullTypeName.PropertyName=Display name;OtherFullTypeName.PropertyName=Other display name
/// FullTypeName:*|OtherInterfaceType.PropertyName
/// </summary>
public class PropertyBindingsConverter:
TypeConverter
{
/// <summary>
/// Returns true for strings.
/// </summary>
public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
{
return sourceType == typeof(string);
}
/// <summary>
/// Returns true for strings.
/// </summary>
public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
{
return destinationType == typeof(string);
}
/// <summary>
/// Creates a PropertyBinding from a string.
/// </summary>
[SuppressMessage("Microsoft.Performance", "CA1820:TestForEmptyStringsUsingStringLength")]
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
string strValue = value as string;
if (string.IsNullOrEmpty(strValue))
return null;
string[] pipedStrings = strValue.Split('|');
List<PropertyBinding> list = new List<PropertyBinding>();
foreach(var pipedString in pipedStrings)
{
if (pipedString.EndsWith(".*"))
{
string typeName = pipedString.Substring(0, pipedString.Length-2);
Type type = TypeTypeConverter.ConvertFrom(typeName);
foreach(var propertyInfo in type.GetInterfaceProperties())
{
PropertyBinding propertyBinding = new PropertyBinding();
propertyBinding.Property = propertyInfo;
list.Add(propertyBinding);
}
continue;
}
string prefix = null;
strValue = pipedString;
int pos = strValue.IndexOf(':');
if (pos != -1)
{
prefix = strValue.Substring(0, pos) + '.';
strValue = strValue.Substring(pos+1);
}
string[] propertyBoundStrings = strValue.Split(';');
int count2 = propertyBoundStrings.Length;
for(int i=0; i<count2; i++)
{
string propertyBoundString = propertyBoundStrings[i];
if (propertyBoundString == "")
{
list.Add(null);
continue;
}
if (prefix != null && propertyBoundString.IndexOf('.') == -1)
{
if (propertyBoundString == ("*"))
{
string typeName = prefix.Substring(0, prefix.Length-1);
Type type = TypeTypeConverter.ConvertFrom(typeName);
// here is getproperties, not getinterfaceproperties.
foreach(var propertyInfo in type.GetProperties())
{
PropertyBinding propertyBinding = new PropertyBinding();
propertyBinding.Property = propertyInfo;
list.Add(propertyBinding);
}
continue;
}
propertyBoundString = prefix + propertyBoundString;
}
PropertyBinding propertyBound = PropertyBindingConverter.ConvertFrom(propertyBoundString);
list.Add(propertyBound);
}
}
return new ObservableCollection<PropertyBinding>(list);
}
/// <summary>
/// Gets the string representation of a property binding.
/// </summary>
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
var collection = value as ObservableCollection<PropertyBinding>;
if (collection == null)
return null;
if (collection.Count == 0)
return "";
StringBuilder result = new StringBuilder();
foreach(var propertyBound in collection)
{
string propertyBoundString = PropertyBindingConverter.ConvertTo(propertyBound);
result.Append(propertyBoundString);
result.Append(';');
}
result.Length--;
return result.ToString();
}
}
}
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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).