Question

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我正在尝试创建一个允许用户将文本输入RTB的函数，如果该文本作为键存在于Dictionary中，则所有listbox填充values与dictionary相关联的key，每个value在新行中填充listbox。

第一行突出显示，用户可以按enter button并用突出显示的文本替换RTB中的文本。

我是VB的新手，所以我不太了解。

这是我到目前为止所做的。

Public Class Oxnay

Private Sub Oxnay_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    Tsort()
End Sub
Private TDictionary As Dictionary(Of String, String())

Public Sub Tsort()
    TDictionary = New Dictionary(Of String, String())

    TDictionary.Add("ape", {"pl", "tz", "xu"})
    TDictionary.Add("lor", {"tv", "px"})
End Sub

Private Sub RichtextBox1_TextChanged(sender As Object, e As EventArgs) Handles RichTextBox1.TextChanged
    Dim lastword As String = RichTextBox1.Text.Split(" ").Last

    If RichTextBox1.ContainsKey(lastword) Then
        'display each string of the dictionary array related to lastword in different lines
        'highlight first line
        'Some[Code]
    Else
        ListBox1.Text = ""
    End If
End Sub

结束班

Answer 1

对于第一个“查找”部分，尝试类似：

Private Sub RichtextBox1_TextChanged(sender As Object, e As EventArgs) Handles RichTextBox1.TextChanged
    Dim lastword As String = RichTextBox1.Text.Trim.Split(" ").Last
    ListBox1.Items.Clear()
    If Not IsNothing(TDictionary) AndAlso TDictionary.ContainsKey(lastword) Then
        ListBox1.Items.AddRange(TDictionary(lastword))
    End If
End Sub

然后使用ListBox中的选择替换当前选定的文本：

Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
    If ListBox1.SelectedIndex <> -1 Then
        If RichTextBox1.SelectedText <> "" Then
            RichTextBox1.SelectedText = ListBox1.SelectedItem.ToString
        End If
    End If
End Sub

如何从Dictionary值填充ListBox？

1 个答案: