public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture,
object value, Type destinationType)
{
if ((destinationType == typeof(string)) && (value.GetType() == typeof(AbbreviationMap)))
{
AbbreviationMap abbreviations = value as AbbreviationMap;
string str = String.Join(";", Array.ConvertAll(abbreviations.Values.ToArray(), i => i.Key + "," + i.Value));
return(str);
}
return(base.ConvertTo(context, culture, value, destinationType));
}
/// <summary>
/// Handles the editing of the abbreviations when the user presses the browse button.
/// </summary>
/// <param name="context"></param>
/// <param name="provider"></param>
/// <param name="value"></param>
/// <returns></returns>
public override object EditValue(System.ComponentModel.ITypeDescriptorContext context,
IServiceProvider provider, object value)
{
if (context == null || provider == null || context.Instance == null)
{
return(base.EditValue(provider, value));
}
AbbreviationMap oldAbbreviations = value as AbbreviationMap;
AbbreviationsEditorDialog dialog = new AbbreviationsEditorDialog();
dialog.Abbreviations = oldAbbreviations;
if (dialog.ShowDialog() != DialogResult.OK)
{
return(oldAbbreviations);
}
return(dialog.Abbreviations);
}
public override object ConvertFrom(ITypeDescriptorContext context,
CultureInfo culture, object value)
{
if (value != null && value is string)
{
AbbreviationMap abbreviations = new AbbreviationMap();
string str = value as string;
string[] entries = str.Split(';');
foreach (string e in entries)
{
string[] parts = e.Split(',');
if (parts.Length == 2)
{
abbreviations.Add(parts[0], parts[1]);
}
}
return(abbreviations);
}
return(base.ConvertFrom(context, culture, value));
}
