在 VB.Net 中创建 List 对象时出错

Question

我是 .Net 框架的新手，我收到一条错误消息

“List(Of AdminSetEmployeeParams)”类型的值无法转换为 'AdminSetEmployeeParams'"

Dim SetNewEmployee As New List(Of AdminSetEmployeeParams)

  SetNewEmployee.Add(New AdminSetEmployeeParams With {
                    .departmentId = ddlDept.SelectedValue,
                    .familyName = txtLastOrSurname.Text,
                    .firstName = txtFirstOrGivenName.Text,
                    .secondName = txtSecondName.Text,
                    .contactPhone = txtPhone.Text,
                    .user = ""})

SetNewEmployee = EmployeeAPIService.AdminSetEmployee(SetNewEmployee).Result  

我将如何解决此错误？

更新：

System.Threading.Tasks
Public Class Task(Of TResult)


Public ReadOnly Property Result As TResult

Answer 1

可能是这样，但很难确定：

Dim newEmployee As New AdminSetEmployeeParams

newEmployee = New AdminSetEmployeeParams With {
                .departmentId = ddlDept.SelectedValue,
                .familyName = txtLastOrSurname.Text,
                .firstName = txtFirstOrGivenName.Text,
                .secondName = txtSecondName.Text,
                .contactPhone = txtPhone.Text,
                .user = ""})

Dim newEmployeeResult As List(Of AdminSetEmployeeParams) = EmployeeAPIService.AdminSetEmployee(newEmployee).Result

我不确定您的 API 为什么会在其结果中返回员工列表（我假设它确实是因为您没有说您有一条错误消息抱怨将结果分配给列表（of. ..) ) 但是只有当 API 调用需要一个新员工并且您将新员工列表交给它时，才会合理地发生给出的错误

如果不成功，试试最后一行

Dim newEmployeeResult As AdminSetEmployeeParams = EmployeeAPIService.AdminSetEmployee(newEmployee).Result

如果这不起作用，请编辑您的问题以提供有关 AdminSetEmployee 采用哪种参数以及 .Result 是哪种对象的更多信息