public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (value == null)
{
return(new SortExpressionCollection());
}
string str = value as string;
if (str == null)
{
return(base.ConvertFrom(context, culture, value));
}
if (str.Length < 1)
{
return(new SortExpressionCollection());
}
string[] strArrays = str.Split(new char[] { ';' });
if ((int)strArrays.Length < 1)
{
return(new SortExpressionCollection());
}
SortExpressionCollection sortExpressionCollection = new SortExpressionCollection();
TypeConverter converter = TypeDescriptor.GetConverter(typeof(SortExpression));
string[] strArrays1 = strArrays;
for (int i = 0; i < (int)strArrays1.Length; i++)
{
SortExpression sortExpression = converter.ConvertFrom(strArrays1[i]) as SortExpression;
if (sortExpression != null)
{
sortExpressionCollection.Add(sortExpression);
}
}
return(sortExpressionCollection);
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if (value != null && !(value is SortExpression))
{
throw new Exception($"Unable to convert type '{value.GetType()}'!");
}
if (destinationType != typeof(string))
{
return(base.ConvertTo(context, culture, value, destinationType));
}
if (value == null)
{
return(string.Empty);
}
SortExpression sortExpression = (SortExpression)value;
return($"{sortExpression.Title}{','}{sortExpression.Expression}{','}{sortExpression.Direction}");
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if (value != null && !(value is SortExpression))
{
throw new Exception(string.Format("Unable to convert type '{0}'!", value.GetType()));
}
if (destinationType != typeof(string))
{
return(base.ConvertTo(context, culture, value, destinationType));
}
if (value == null)
{
return(string.Empty);
}
SortExpression sortExpression = value as SortExpression;
return(string.Format("{1}{0}{2}{0}{3}", new object[] { ',', sortExpression.Title, sortExpression.Expression, sortExpression.Direction }));
}
public static string Serialize(SortExpression sortExpression)
{
return((string)TypeDescriptor.GetConverter(typeof(SortExpression)).ConvertTo(sortExpression, typeof(string)));
}
public string Serialize()
{
return(SortExpression.Serialize(this));
}