如何在文本框中找到指定的行

Question

如何獲取文本框中的指定行並從該行中獲取文本中的文本

Answer 1

您需要將文本框文本拆分爲基於行的字符串數組分離，然後，如果你有足夠的線，從陣列獲取行：

Dim asLines As String() 
    Dim wLineToGet As Integer = 2 
    asLines = TextBox1.Text.Split(New String() {Environment.NewLine}, StringSplitOptions.None) 
    If asLines IsNot Nothing AndAlso asLines.Length >= wLineToGet Then 
     MessageBox.Show("Line " & wLineToGet & " = " & asLines(wLineToGet - 1)) 
    Else 
     MessageBox.Show("There are not enough lines in the textbox to retrieve line " & wLineToGet) 
    End If 

Answer 2

Dim lines As String() = testing.Text.Split(Environment.NewLine) 

然後訪問線就這樣

lines(0) // would be first line