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public ConvertTo ( ITypeDescriptorContext context, System culture, object value, |
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| context | ITypeDescriptorContext | An ITypeDescriptorContext that provides a format context. |
| culture | System | A CultureInfo object. If a null reference the current culture is assumed. |
| value | object | The Object to convert. |
| destinationType | The Type to convert the value parameter to. | |
| return | object | |
public override object ConvertTo(ITypeDescriptorContext context,
System.Globalization.CultureInfo culture,
object value,
Type destinationType)
{
// We are only interested in adding functionality for converting to strings
if (destinationType == typeof(string))
{
// Convert object to expected style
PaletteDrawBorders borders = (PaletteDrawBorders)value;
// If the inherit flag is set that that is the only flag of interest
if ((borders & PaletteDrawBorders.Inherit) == PaletteDrawBorders.Inherit)
return "Inherit";
else
{
// Append the names of each border we want
StringBuilder sb = new StringBuilder();
if ((borders & PaletteDrawBorders.Top) == PaletteDrawBorders.Top)
sb.Append("Top");
if ((borders & PaletteDrawBorders.Bottom) == PaletteDrawBorders.Bottom)
{
if (sb.Length > 0)
sb.Append(",");
sb.Append("Bottom");
}
if ((borders & PaletteDrawBorders.Left) == PaletteDrawBorders.Left)
{
if (sb.Length > 0)
sb.Append(",");
sb.Append("Left");
}
if ((borders & PaletteDrawBorders.Right) == PaletteDrawBorders.Right)
{
if (sb.Length > 0)
sb.Append(",");
sb.Append("Right");
}
// If no border is wanted then return a fixed string
if (sb.Length == 0)
sb.Append("None");
return sb.ToString();
}
}
// Let base class perform default conversion
return base.ConvertTo(context, culture, value, destinationType);
}