How to delete text between two texts in listbox

Question

0.00/5 (No votes)

See more:

Hi For my application, I need a code that searches for Listbox text that has the beginning and end characters

code for open text to listbox

Stream myStream = null;
            OpenFileDialog openFileDialog1 = new OpenFileDialog();

            openFileDialog1.InitialDirectory = "c:\\";
            openFileDialog1.Filter = "txt files (*.php)|*.php|All files (*.*)|*.*";
            openFileDialog1.FilterIndex = 2;
            openFileDialog1.RestoreDirectory = true;

            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                try
                {
                    if ((myStream = openFileDialog1.OpenFile()) != null)
                    {
                        using (myStream)
                        {
                            textBox1.Text = File.ReadAllText(openFileDialog1.FileName);
                        }
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message);
                }
            }

Listbox will have text

for example

text text text

<-- text to be deleted

text to be deleted

text to be deleted ->

text text text

.......................................

the program will delete everything written in <- -> and so it will stay

text text text

text text text

Thank you

What I have tried:

I tried to write two indexes but this was not me mainly this can only search one character but I have more.
I open the text in the listbox but here I do not know how to delete the text that searches for the characters and deletes the text between them.
I used the string but this could only search me for the <- characters and deleted one line, which is wrong.
it must look for the text between <- and -> and delete everything in between

Posted 7-Sep-19 23:46pm

Member 14550132

Updated 8-Sep-19 3:13am

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2019-09-08T02:15:00

Quote:
I tried to write two indexes but this was not me mainly this can only search one character but I have more.

Since when?

string input = "The beginning <-- The middle --> The end";
int start = input.IndexOf("<--");
int end = input.IndexOf("-->");
Console.WriteLine($"Start = {start}, end = {end}");

Member 14550132 · Answer 2 · 2019-09-08T03:13:00

I need to read the text from Listbox and then search for the lyrics by word and delete them
maybe something like that
for (int n = listBox1.Items.Count - 1; n> = 0; --n)
{
   string s = listBox1.Items [n] .ToString ();
             {
                 int start = n. IndexOf ("<-");
                 int end = n.IndexOf ("->");
                 {
                     listBox1.Items.Remove (s);

How to delete text between two texts in listbox

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0