List(Of String)例子

最新推荐文章于 2025-10-13 00:27:57 发布

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本文介绍了一个使用VB.NET实现的简单应用程序，该程序通过按键事件收集用户输入的文本到一个字符串列表，并在按下回车键时显示这些条目的连接结果。此应用展示了如何在Windows Forms中使用List(Of String)来存储数据以及如何处理KeyPress事件。

Public Class Form1
    Dim strList As List(Of String) = New List(Of String)
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim str As String = ""
        For i As Integer = 0 To strList.Count - 1
            str = str & strList.Item(i).ToString & "_"
        Next
        MsgBox(str.Substring(0, str.Length - 1))
    End Sub

    Private Sub TextBox1_KeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
        If e.KeyChar = Chr(13) Then
            strList.Add(TextBox1.Text.ToString)
            TextBox2.Text = TextBox1.Text.ToString
            TextBox1.Text = ""
        End If
    End Sub
End Class