Question

我有一个数据库的调用，它获取一个管道分隔的字符串，我打破一个数组并填充文本框，这个确切的代码适用于除此之外的每个其他实例，我可以找出原因。此实例仅将字符串的前两个字母打印到两个文本框中

来自查询的数据看起来像这样“这是一个测试|这是一个测试”

    Dim queryString3 As String = "SELECT Answer FROM ShortAnswers where questionNumber = 12 and submission = 1375"
    Using connection As New SqlConnection(My.Settings.ConnString)
        Dim command As New SqlCommand(queryString3, connection)
        connection.Open()
        Dim rdr As String = command.ExecuteScalar()
        Dim P3 As String
        P3 = rdr
        Dim Part3 As New ArrayList(P3.Split("|"c))
        TextBoxA.Text = Part3(0)
        TextBoxB.Text = Part3(1)

在此示例中，textboxa取值为“t” 和文本框b取值“h” “这是一个测试|这是一个测试”的前两个字母

这个几乎相同的作品

    Dim queryString As String ="SELECT Answer FROM ShortAnswers where questionNumber = 11 and submission = 1375"          
        Using connection As New SqlConnection(My.Settings.OnLineTestingDB)
        Dim command2 As New SqlCommand(queryString, connection)
        connection.Open()
        Dim rdr1 As String = command2.ExecuteScalar()
        Dim P2 As String
        P2 = rdr1
        Dim Part2 As New ArrayList(P2.Split("|"c))
        Normal.Text = Part2(0)
        Normal1.Text = Part2(1)
        Normal2.Text = Part2(2)
    End Using

Answer 1

问题在于是从字符串而不是数组

中获取字符串

Dim Part3 As New ArrayList(P3.Split("|"c))
   TextBoxA.Text = P3(0)
   TextBoxB.Text = P3(1)

现在看起来像

Dim Part3 As New ArrayList(P3.Split("|"c))
   TextBoxA.Text = Part3(0)
   TextBoxB.Text = Part3(1)

纠正了这个问题，谢谢你的帮助，有时候你需要一双额外的眼睛来唤醒你

相同的约定适用于所有其他实例，但这一个

1 个答案: