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Lothan Drius Lothan Drius - 7 months ago 34 Question

Underlining repeated words in VB

Homework, I need to create a program that works like

Heres what I've done so far:

Dim strContent As String = "the texts the text the text"
Dim arrNum As Integer = 0

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
arrContent = strContent.Split(" ")
RichTextBox2.Text = strContent
End Sub

Private Sub TextBox1_TextChanged(sender As Object, e As EventArgs) Handles TextBox1.TextChanged
If TextBox1.Text = arrContent(arrNum) + " " Then
arrNum = arrNum + 1
End If
End Sub

Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
Dim strSearch As String = arrContent(arrNum)
Dim intIndex As Integer = RichTextBox2.Find(strSearch, 0, RichTextBoxFinds.WholeWord)
If intIndex <> -1 Then
RichTextBox2.SelectionStart = intIndex
RichTextBox2.SelectionLength = strSearch.Length
RichTextBox2.SelectionFont = New Font(RichTextBox2.Font, FontStyle.Bold)
End If
End Sub

The problem is that repeated words doesn't get underlined, why?


It doesn't get underlined because you have it set to Bold the text, not underline it. And I would imagine if you put a breakpoint at Timer1_Tick, you wouldn't hit it because you haven't started the timer; you need to enable the timer if it isn't already, and start it.

Add this to Form1_Load

Timer1.Enabled = True

And change

RichTextBox2.SelectionFont = New Font(RichTextBox2.Font, FontStyle.Bold)


RichTextBox2.SelectionFont = New Font(RichTextBox2.Font, FontStyle.Underline)

I tried this and the underline works, but you have some other logic issues you're going to need to sort out. If the same word is in the content more than once, your underline logic fails. It also does not underline the first word when the program first starts, and it will also error once you've finished typing all the words in the textbox because the array's index will be out of bounds. But now that the underline part is working, you can begin to debug the rest of that stuff