public override string ConvertToInvariantString(object value)
{
if (!(value is ColumnDefinitionCollection cdc))
{
throw new NotSupportedException();
}
var converter = new GridLengthTypeConverter();
return(string.Join(", ", cdc.Select(cd => converter.ConvertToInvariantString(cd.Width))));
}
public override string ConvertToInvariantString(object value)
{
if (!(value is RowDefinitionCollection rdc))
{
throw new NotSupportedException();
}
var converter = new GridLengthTypeConverter();
return(string.Join(", ", rdc.Select(rd => converter.ConvertToInvariantString(rd.Height))));
}
public override object ConvertFromInvariantString(string value)
{
if (value != null)
{
var lengths = value.Split(',');
var coldefs = new ColumnDefinitionCollection();
var converter = new GridLengthTypeConverter();
foreach (var length in lengths)
{
coldefs.Add(new ColumnDefinition {
Width = (GridLength)converter.ConvertFromInvariantString(length)
});
}
return(coldefs);
}
throw new InvalidOperationException(string.Format("Cannot convert \"{0}\" into {1}", value, typeof(ColumnDefinitionCollection)));
}