/// <summary>
/// Writes an enum value.
/// </summary>
/// <param name="value">The value.</param>
public void WriteValue(Enum value)
{
this.WriteValue(EwsUtilities.SerializeEnum(value));
}
/// <summary>
/// Try to convert object to a string.
/// </summary>
/// <param name="value">The value.</param>
/// <param name="strValue">The string representation of value.</param>
/// <returns>True if object was converted, false otherwise.</returns>
/// <remarks>A null object will be "successfully" converted to a null string.</remarks>
internal bool TryConvertObjectToString(object value, out string strValue)
{
strValue = null;
bool converted = true;
if (value != null)
{
// All value types should implement IConvertible. There are a couple of special cases
// that need to be handled directly. Otherwise use IConvertible.ToString()
IConvertible convertible = value as IConvertible;
if (value.GetType().IsEnum)
{
strValue = EwsUtilities.SerializeEnum((Enum)value);
}
else if (convertible != null)
{
switch (convertible.GetTypeCode())
{
case TypeCode.Boolean:
strValue = EwsUtilities.BoolToXSBool((bool)value);
break;
case TypeCode.DateTime:
strValue = this.Service.ConvertDateTimeToUniversalDateTimeString((DateTime)value);
break;
default:
strValue = convertible.ToString(CultureInfo.InvariantCulture);
break;
}
}
else
{
// If the value type doesn't implement IConvertible but implements IFormattable, use its
// ToString(format,formatProvider) method to convert to a string.
IFormattable formattable = value as IFormattable;
if (formattable != null)
{
// Null arguments mean that we use default format and default locale.
strValue = formattable.ToString(null, null);
}
else if (value is ISearchStringProvider)
{
// If the value type doesn't implement IConvertible or IFormattable but implements
// ISearchStringProvider convert to a string.
// Note: if a value type implements IConvertible or IFormattable we will *not* check
// to see if it also implements ISearchStringProvider. We'll always use its IConvertible.ToString
// or IFormattable.ToString method.
ISearchStringProvider searchStringProvider = value as ISearchStringProvider;
strValue = searchStringProvider.GetSearchString();
}
else if (value is byte[])
{
// Special case for byte arrays. Convert to Base64-encoded string.
strValue = Convert.ToBase64String((byte[])value);
}
else
{
converted = false;
}
}
}
return(converted);
}