| public ConvertToInvariantString ( ITypeDescriptorContext context, object value ) : string | ||
| context | ITypeDescriptorContext | |
| value | object | |
| return | string | |
//</snippet2>
// The following code example demonstrates how to use the
// ConvertToInvariantString and ConvertToString methods.
// This example is designed to be used with Windows Forms.
// Paste this code into a form and call the ShowFontStringConversion
// method when handling the form's Paint event, passing e
// as PaintEventArgs.
//<snippet3>
private void ShowFontStringConversion(PaintEventArgs e)
{
// Create the FontConverter.
System.ComponentModel.TypeConverter converter =
System.ComponentModel.TypeDescriptor.GetConverter(typeof(Font));
Font font1 = (Font)converter.ConvertFromString("Arial, 12pt");
string fontName1 = converter.ConvertToInvariantString(font1);
string fontName2 = converter.ConvertToString(font1);
e.Graphics.DrawString(fontName1, font1, Brushes.Red, 10, 10);
e.Graphics.DrawString(fontName2, font1, Brushes.Blue, 10, 30);
}
private IPropertyChooser CreateChooserForProperty(PropertyInfo pi, object target)
{
IPropertyChooser chooser = null;
if (pi.PropertyType == typeof(string))
chooser = new StringChooser();
else if (pi.PropertyType.IsEnumType())
chooser = new EnumeratedTypeChooser(pi.PropertyType);
else if (pi.PropertyType.IsIntegerType())
chooser = new IntegerChooser(pi.PropertyType);
else if (pi.PropertyType == typeof(bool))
chooser = new BooleanChooser();
else
chooser = new StringChooser();
if (chooser != null)
{
object val = pi.GetValue(target, null);
TypeConverter tc = new TypeConverter();
chooser.PropertyName = pi.Name;
chooser.PropertyValue = val == null ?
Translator.Translate("TXT_NA") : tc.ConvertToInvariantString(val);
}
return chooser;
}
private static string ConvertToString(TypeConverter typeConverter, object val)
{
return typeConverter.ConvertToInvariantString(val);
}