VS 2008 RichTextBox - Determine Lines Have Changed?

Apr 23, 2011

I am working on a way to determine if the lines of a RichTextBox have changed.I currently use this

Dim newhash As Integer = Me.Text.GetHashCode
If newhash <> Me._prevhash Then
Me._prevhash = newhash
Me._lines = MyBase.Lines

[code]....

But this method has a bad issue: The text property takes a while to "load up" plus getting its hash code adds to it. This code runs every time the Lines are needed (it is a property). So this

For i As Integer = 0 To Lines.Count - 1
Dim line As String = Lines(i)
Next

Takes ages to complete, because for every line it checks if the lines have changed.I am trying to evade using MyBase.Lines too much, since that REALLY takes ages to load.

- I can not use the modified property since it is unreliable (set to true if only a text color changes)

- Can't use the RTF since it changes without the text changing (coloring) and the hash code is slow as well.

- Can't use the TextChanged event, since it is sent after the SelectionChanged event (for some reason)

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end sub
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Hello!

How are you?

I'm Ok, Thanks for asking.

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1. Hello!

2. How are you?

3. I'm ok, Thanks for asking.

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Dim num1 As Single
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So a third textbox should sum with one line "offset".

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rd, gloucester, on, k1g3n4
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[Code]...

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Public Class Form1
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[Code]...

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RichTextBox1.Focus()

[CODE]...

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Imports System.Windows.Forms.Design
Public Class Slider
Private editorService As IWindowsFormsEditorService
Private m_Value As Integer

[code].....

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[code]....

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