VB.NET删除文本框的第一行

Question

如何在按下按钮时删除文本框的第一行？

Answer 1

试试这个：

  Dim b As String() = Split(TextBox1.Text, vbNewLine)

  TextBox1.Text = String.Join(vbNewLine, b, 1, b.Length - 1)

请参阅String.Join以供参考。

Answer 2

相当容易：

Private Sub bttnFirstLine_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles bttnFirstLine.Click
        txtBox.Text = txtBox.Text.Substring(txtBox.Text.IndexOf(vbCrLf))
end sub

或

Private Sub bttnFirstLine_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles bttnFirstLine.Click
            dim myString = txtBox.text
            txtBox.Text = myString.Substring(myString.IndexOf(vbCrLf))
    end sub