i have a question about to select the last line of the RichTextBox

Question

I have a Question to select the last line of the RichTextBox When i click the Button1 it will show the last line in the Messagebox

I tried a lot of codes by it only select the index of the lines i need your help

I want the output like

these are the lines i write in the RichTextBox

1.hello

2.world

3.welcome

when i click the button1 it will show the last line in messagebox

3.welcome // it will appears in the message box

`I tried a lot of codes by it only select the index of the lines` Show that code. You just need to read all text till the and from the index. — Renatas M., Jan 22 '19 at 11:06
Thank you for your reply sir, Finally i got the solution It Really works MessageBox.Show(RichTextBox1.Lines(RichTextBox1.Lines.Length - 1)) — ABDUL MAJEED ALI, Jan 24 '19 at 05:05

score 2 · Answer 1 · answered Jan 22 '19 at 11:10

2

Try this:

MessageBox.Show(RichTextBox.Lines[RichTextBox.Lines.Length -1]);

answered Jan 22 '19 at 11:10

Stavros S.

Also consider `LastOrDefault`. – mjwills Jan 22 '19 at 12:07
3

Huh? `MessageBox.Show()` **is** VB.NET. `MsgBox` is VB6! – Ňɏssa Pøngjǣrdenlarp Jan 22 '19 at 16:17

score 0 · Accepted Answer · edited Jan 23 '19 at 01:13

0

Try the below code, considering RichTextBox1 as your RichTextBox name

MessageBox.Show(RichTextBox1.Lines(RichTextBox1.Lines.Length - 1))

edited Jan 23 '19 at 01:13

LarsTech

answered Jan 22 '19 at 11:52

Sreenath Ganga

The User had put both VB and C# as Tag..c# is already answered ..Thats why vb given...thanks for downvoting – Sreenath Ganga Jan 22 '19 at 12:34
Iam working with vb.net for 10 years and using messagebox. – Sreenath Ganga Jan 22 '19 at 15:00
2

@preciousbetine : Not true. _**VB6**_ uses `MsgBox()`, and the only reason it still exists in VB.NET is for _backwards compatibility_. The [`MessageBox` class](https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.messagebox) is shared between all .NET languages and has existed since **2003**, making the `MsgBox()` function obsolete as of then (that's 16 years ago!). Thus it should _**not**_ be used in today's code. – Visual Vincent Jan 22 '19 at 16:09
@preciousbetine : Most functions in the [`Microsoft.VisualBasic` namespace](https://learn.microsoft.com/en-us/dotnet/api/microsoft.visualbasic?view=netframework-4.7.2) (check the docs for each class) only exist for backwards compatibility, so one should try not to use them these days since .NET's own methods are much more well-coded and better designed to work with OOP. – Visual Vincent Jan 22 '19 at 16:18

Zero Point Programming · Answer 3 · 2019-01-24T23:34:59.983

0

You could try

Messagebox.Show(RTB1.ToString().Split(Constants.vbNewLine).LastOrDefualt.ToString());

edited Jan 24 '19 at 23:34

answered Jan 22 '19 at 23:57

Error 1 'Split' is not a member of 'System.Windows.Forms.RichTextBox'. – ABDUL MAJEED ALI Jan 24 '19 at 05:02
Sorry use rtb1.tostring().split instead – Zero Point Programming Jan 24 '19 at 23:34

3 Answers3