How to delete text between two texts in listbox

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);
}
}
// button 2
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);

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

thank you

3 Replies

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Mageshwaran R6y ago
Hi,
https://stackoverflow.com/questions/2096489/c-sharp-removing-items-from-listbox
Krpi1141 Krpi11417y ago
maybe
Dim data = "AACCEE"
Dim fixed = Regex.Replace(data, "", "", RegexOptions.Singleline)
Amit Gupta7y ago
Do the steps 1. Find the start index and end index (greater than first index) 2. Loop through list items (assuming loop variable as x) 3. Fetch the listbox items value and check if its matched 4. Remove the item at index x and insert the replaced variable value at x