C# - Replace a character with nothing

Question

I have a RichTextBox that looks like this:

TEXT  NEXT_TEXT  10.505   -174.994 0 TEXT  NEXT_TEXT  100.005  174.994  90  TEXT  NEXT_TEXT  -10.000  -5.555   180 TEXT  NEXT_TEXT  -500.987 5.123    270 TEXT  NEXT_TEXT  987.123  1.000    180 TEXT  NEXT_TEXT  234.567  200.999  90 

and I want to replace the "." with nothing and place it into a ListBox...

So the new file would look like this:

TEXT  NEXT_TEXT  10505   -174994 0 TEXT  NEXT_TEXT  100005  174994  90  TEXT  NEXT_TEXT  -10000  -5555   180 TEXT  NEXT_TEXT  -500987 5123    270 TEXT  NEXT_TEXT  987123  1000    180 TEXT  NEXT_TEXT  234567  200999  90 

I thought about multiplying the values by 1000 but I do not know how to properly do match calculations on a string.

So the next thought was to do this (HOWEVER THIS DOES NOT WORK):

  // Splits the lines in the rich text boxes   string[] listOneLines = oneRichTextBox.Text.Split('\n');    // Set the selection mode to multiple and extended.   placementOneListBox.SelectionMode = SelectionMode.MultiExtended;    // Shutdown the painting of the ListBox as items are added.   placementOneListBox.BeginUpdate();    // Display the items in the listbox.   foreach (var item in listOneLines)   {       item.Replace(".","");       placementOneListBox.Items.Add(item);   }    // Allow the ListBox to repaint and display the new items.   placementOneListBox.EndUpdate(); 

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• Can anyone help me figure out how to replace a "."?

Answer 1

Strings are immutable so this line is wrong:

item.Replace(".",""); 

This returns the string after the replacement has been made, but item is unchanged. You need this:

foreach (var item in listOneLines)     placementOneListBox.Items.Add(item.Replace(".",""));