Dalton (45) collapsed while playing touch rugby in Northcote and was rushed to hospital.
She spent most of the weekend in critical condition and life support was switched off yesterday afternoon, with family resigned to the fact she wouldn't recover.
Spokesman and business partner Chris Henderson addressed media this afternoon, expressing the family's gratitude for the public supporter over the past few days.
"It is with overwhelming sadness that we share the news that our much-loved 'T' passed away at 10.20am with family by her side," he said.
"Tania has up the fight of her life, but ultimately, it was a fight she couldn't win.
"We have reluctantly had to say goodbye. It's unbearably sad, but we are comforted by how big a life she lived in her short 45 years.
"She lived as we might all strive to - never on the side-line, always in the action, bringing her 'A' game as standard, with a big heart and an easy smile, sucking the juice out of every day. We couldn't be prouder of her or love her more.
"Tania represented her country for 11 years as a Silver Fern, helped to grow a successful business and gave of herself and her time generously. Her most important job, though, was as a mum and she lives on in our three amazing kids."
A memorial service will be held at North Harbour Stadium on March 6.
Tributes flow
Dalton was one of life's "Pied Pipers", former national team manager Sheryl Wells recalled.
Wells said news of Dalton's death has been met with shock and disbelief among the New Zealand netball fraternity.
"She was just a much-loved person and will be dearly, dearly missed in the netball community and in many other communities - she was involved in everything,"
Wells, who managed the Silver Ferns 1993-2004, said Dalton was renowned for her fun-loving nature, and joked she was a bit of a handful to manage at times.
"I actually used to say to her 'Tania, you taught me everything I know about managing', because I always had to be a step ahead of her," said Wells. "She was a lot of fun.
"She was a Pied Piper, like a gatherer of people. Whenever you saw Tania, there were always a group of people around her, usually laughing, because she was so much fun and had a gift of making everyone feel special."
When it was game time, however, Dalton was all business, whether she was on the court or on the bench.
Wells said Dalton played a small, but crucial role in New Zealand's tense win over Australia in the 2003 World Cup final, helping settle the team when Temepara Bailey was famously sent off the court for two centre passes late in the final quarter.
With Bailey off the court, the Ferns were forced to have a quick reshuffle of positions to ensure there was a player to take the centre pass.
"When Temepara, much to our dismay and shock, was stood down, Lesley [Rumball] knew straight away to come to the sideline and Tania was quickly on her feet, picking up the spare centre bib beside me, and went over to Lesley to attach the bib and gave her a little 'go well, Les' .
"Back Lesley marched to the centre circle and the rest is history," said Wells. "She was absolutely fantastic on the sideline - she was like my assistant manager at that stage."
Broadcaster Bernadine Oliver-Kerby, who has been friends with Dalton for more than 20 years, said the former Silver Fern was held in high regard in the North Shore community.
"She was the unofficial mayor of the North Shore, I reckon. The volume of people she knew and cared about was staggering," said Oliver-Kerby.
"She was always genuinely interested in other people. She knew if you'd had a sick kid, or just got back from holiday or had a sporting trial - she would always follow up and see how it went."
Netball New Zealand chief executive Jennie Wyllie said the entire netball community was in shock and deeply saddened following the news.
"On behalf of the netball community, we extend our deepest sympathies to Duane [Tania's husband] and their family at this extremely difficult time," Wyllie said.
"Tania was a true competitor on the court who showed a passion and love for the game. She was respected by team-mates and opponents across world netball, and was much-loved off the court.
"She will always be in our hearts."
