Newline cursor pointing issue in richtextbox

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when line is inserted after button click the cursor does not get pointed on the new line

so,can i get some help for resolving my issue?

What I have tried:

RichTextBox1.Text = RichTextBox1.Text.Insert(RichTextBox1.SelectionStart, Environment.NewLine)

Posted 11-Jun-19 23:10pm

shaileshshinde

Updated 11-Jun-19 23:48pm

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Richard MacCutchan · Accepted Answer · 2019-06-11T23:48:00

Solution 1

Same issue as your other question: https://www.codeproject.com/Questions/5099718/Save-error-in-richtextbox-in-VB-NET[^]. Please see the documentation for the RichTextBox.

Posted 11-Jun-19 23:48pm

Richard MacCutchan

Comments

shaileshshinde 12-Jun-19 7:36am

means? i am not able to understand.

can i get the code?

Richard MacCutchan 12-Jun-19 7:39am

What code? We have no idea what your code is doing or what does not work. Have you checked the documentation to see what happens when you add text in whatever your application does?

shaileshshinde 12-Jun-19 7:44am

in richtextbox using below code:
RichTextBox1.Text = RichTextBox1.Text.Insert(RichTextBox1.SelectionStart, Environment.NewLine)

i have added new blank line.but what i want is after adding new blank line the cursor should get pointed to blank line.but in my case the cursor does not get pointed on that blank line

Richard MacCutchan 12-Jun-19 8:00am

Probably because the focus is still on the button. Call the Focus method on the RichTextBox.

shaileshshinde 13-Jun-19 5:51am

@Richard focus goes to the first line of richtextbox.

i need focus to be on the newline added after executing the code.

is their any solution for that?

shaileshshinde 13-Jun-19 6:20am

@Richard i am using below code:
Private Sub insertrichtextboxlineButton3_Click(sender As Object, e As EventArgs) Handles Button3.Click

RichTextBox1.Text = RichTextBox1.Text.Insert(RichTextBox1.SelectionStart, Environment.NewLine)
RichTextBox1.Focus()
End Sub

on coming to RichTextBox1.Focus() the focus goes to first line of richtextbox.

Richard MacCutchan 13-Jun-19 6:37am

Sorry, but my previous tests were flawed. I have tried again and it appears that resetting the text into the box places the cursor at the beginning of the text. Try the following:

Dim sel As Integer
sel = RichTextBox1.SelectionStart

RichTextBox1.Text = RichTextBox1.Text.Insert(RichTextBox1.SelectionStart, Environment.NewLine)
RichTextBox1.SelectionStart = sel + 1
RichTextBox1.Focus()

shaileshshinde 13-Jun-19 6:45am

thanks buddy issue solved by your help.

Richard MacCutchan 13-Jun-19 6:53am

And, of course, you could just do:

RichTextBox1.AppendText(Environment.NewLine)

shaileshshinde 13-Jun-19 7:21am

will the same technique work with remove line and focus on earlier line
as i have tried below code:
Dim sel As Integer
sel = RichTextBox1.SelectionStart

RichTextBox1.SelectedText = RichTextBox1.SelectedText.Remove(0)
RichTextBox1.SelectionStart = sel - 1
RichTextBox1.Focus()

which helps me in removed the selected text but the deleted line is now blank.
how to remove that blank line with removing line together

Richard MacCutchan 13-Jun-19 7:46am

It will only remove the text you have selected, so you need to include the lf at the end.

shaileshshinde 13-Jun-19 8:41am

Means what exactly needs to be done?

Richard MacCutchan 13-Jun-19 8:50am

You need to try a few simple tests. Add some lines of text to your TextBox, then try removing different selections until you find the one that works. Use the debugger to see exactly what is being selected, and what is excluded, each time.

shaileshshinde 13-Jun-19 8:51am

Ok