public static DbColumn MakeColumn(DbExpression exp, string alias)
{
DbColumn column;
DbColumnAccessExpression e = exp as DbColumnAccessExpression;
if (e != null)
{
column = new DbColumn(alias, e.Column._type, e.Column._dbType, e.Column._size);
}
else
{
column = new DbColumn(alias, exp.Type);
}
return(column);
}
public override DbExpression Visit(DbColumnAccessExpression exp)
{
return(exp);
}
public abstract T Visit(DbColumnAccessExpression exp);
public virtual T Visit(DbColumnAccessExpression exp)
{
throw new NotImplementedException();
}