System.Data.SqlClient.SqlException：'用户'sa'登录失败。

Question

我的sql连接“ sa”工作正常，但我在登录表单代码（c＃.net）中显示登录失败

this.taskForm = this.formBuilder.group({
  'title':[null],
  'description' : [null],
  'descriptionHtml':[null],
  'assignedUserId': [null],
  'deadline':[null],
  'deadlineType':[null],
  'fromDate':[null],
  'clientId':[null]
});

// ...

async getTaskInfo() {
  this.taskId = this.navParams.get('taskId');

  await this.api.getTaskById(this.taskId).subscribe(result => {
    this.task = result;
  });
}

async getCompanies() {
  this.clients = this.api.getCompanies();
}

async getSimpleUsers() {
  this.simpleUsers = this.api.getSimpleUsers();
}

async setUser(userId) {
  this.assignedUserId = userId;
}

async setClient(clientId) {
  this.clientId = clientId;
}