public bool Undo()
{
if (Row == null)
{
return(false);
}
DateTime dateTime;
if (ColumnName.TryParse(out dateTime))
{
if (!OldData.Equals(""))
{
Row[ColumnName] = OldData;
}
else
{
Row[ColumnName] = "";
}
return(true);
}
if (OldData == null)
{
OldData = "";
}
Row[ColumnName] = OldData;
return(true);
}
public void Execute()
{
DateTime dateTime;
if (ColumnName.TryParse(out dateTime))
{
Row[ColumnName] = this.SelectedVertex.States.ParseEvidenceString(NewData as string);
}
else if (ColumnName == "Comment")
{
Row[ColumnName] = NewData as string;
}
else
{
double val;
Row[ColumnName] = Double.TryParse(NewData.ToString(), out val) ? Convert.ToDouble(NewData.ToString()) : 0;
}
this.SelectedVertex.IsUserEvidenceComplete = true;
}