c# - How to split a string on newlines

Split a String on newlines
The String represents text as a sequence of UTF-16 code units. The String is a sequential collection of characters that is used to represent text. The String is a sequential collection of System.Char objects.

The following .net c# tutorial code demonstrates how we can split a String on newlines. In this .net c# tutorial code we will split a String object by new lines character ‘\n’ and ‘\r\n’ and create a String Array object. In a .net c# application, we can put a new line on a String object using some specified special characters.

The String Split() method returns a String Array that contains the substrings in this instance that are delimited by elements of specified String or Unicode character array.

The String Split(String[], StringSplitOptions) method splits a String into substrings based on a specified delimiting String and optionally String split options. In this example .net c# code, we pass a String array to this method to split a String into newlines. We also pass StringSplitOptions.None to this method.

The String Split(String[], StringSplitOptions) method returns an Array whose elements contain the substrings in this String that are delimited by one or more Strings in the separator. This method throws ArgumentException if the option is not one of the StringSplitOptions values.
string-split-newline.aspx

<%@ Page Language="C#" AutoEventWireup="true"%>
  
<!DOCTYPE html>  
<script runat="server"> 
    protected void Button1_Click(object sender, System.EventArgs e)  
    {
        string plants = "Keek, Kinnikinnik, \nKousa, \r\nKudzu, Alder, \nApple";

        Label1.Text = "string............<br />";
        Label1.Text += "Keek, Kinnikinnik, \\nKousa, \\r\\nKudzu, Alder, \\nApple";

        //this line split string on new line (line break) based on \n \r\n.
        string[] splittedArray = plants.Split(new string[]{"\r\n","\n"},StringSplitOptions.None);

        Label1.Text += "<br /><br />string splitted string array elements......<br />";
        foreach (string s in splittedArray)
        {
            Label1.Text += s + "<br />" ;
        }
    }  
</script>  
  
<html xmlns="http://www.w3.org/1999/xhtml">  
<head id="Head1" runat="server">  
    <title>c# example - string split newline</title>  
</head>  
<body>  
    <form id="form1" runat="server">  
    <div>  
        <h2 style="color:MidnightBlue; font-style:italic;">  
            c# example - string split newline
        </h2>  
        <hr width="550" align="left" color="Gainsboro" />  
        <br />
        <asp:Label   
            ID="Label1"   
            runat="server"  
            Font-Size="Large"  
            >  
        </asp:Label>  
        <br /><br />
        <asp:Button   
            ID="Button1"   
            runat="server"   
            Text="string split newline"  
            OnClick="Button1_Click"
            Height="40"  
            Font-Bold="true"  
            />  
    </div>  
    </form>  
</body>  
</html>
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