Question

我必须将我的c＃转换为vb，但它没有100％转换，我坚持用类对象添加项目。

我在此处收到错误（类型＆＃39;布尔值＆＃39;无法转换为＆＃39; _Default.Courses＆＃39;）在课程列表中添加：

Public Class Courses
    Public courseName As String
    Public qualName As String
    Public providerName As String
End Class

...

While r.Read
    Dim coursename As String = r("courseName").ToString
    Dim qualname As String = r("qualName").ToString
    Dim providername As String = r("providerName").ToString
    courseList.Add(New Courses() With {
        Key.courseName = coursename,
        Key.qualName = qualname,
        Key.providerName = providername
    })
End While

...

这是原始的c＃代码：

while (r.Read())
{
    string coursename = r["courseName"].ToString();
    string qualname = r["qualName"].ToString();
    string providername = r["providerName"].ToString();

    courseList.Add(new Courses
    {
        courseName = coursename,
        qualName = qualname,
        providerName = providername
    });
}

Answer 1

将您的代码更改为：

While r.Read
    Dim coursename As String = r("courseName").ToString
    Dim qualname As String = r("qualName").ToString
    Dim providername As String = r("providerName").ToString
    courseList.Add(New Courses() With {
        .courseName = coursename,
        .qualName = qualname,
        .providerName = providername
    })
End While

如何在vb中使用类添加项目到列表？

1 个答案: