c# - How to split a string to a list

Split a String into a List
Split a String into a List 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 instance into a List object. So, in this .net c# tutorial code we will split a String instance into a String Array then we will convert the String Array into a List object. Here we will split a Strings using comma delimiter.

The String Split() method returns a String Array that contains the substrings in this instance that are delimited by elements of a specified String or Unicode character Array. The String Split(Char, StringSplitOptions) method overload splits a String into substrings based on a specified delimiting character and optionally String split options. So, using this method we can split a String using a comma delimiter.

The String Split(char separator, StringSplitOptions options) method returns an Array whose elements contain the substrings from this instance that are delimited by a separator. So, we get a String Array from the source String instance by splitting it using a comma separator. Now, we have to convert the String Array into a List object.

The List class represents a strongly typed list of objects that can be accessed by index. The Enumerable ToList() method creates a List<T> from an IEnumerable<T>. So, using this Enumerable ToList() method we can convert a String Array object into a List object.

Finally, we split a String instance into a String Array by splitting it using a comma separator. Then we convert the String Array instance into a List object using the Enumerable ToList() method.
string-split-to-list.aspx

<%@ Page Language="C#" AutoEventWireup="true"%>
  
<!DOCTYPE html>  
<script runat="server"> 
    protected void Button1_Click(object sender, System.EventArgs e)  
    {
        string plants = "Gallberry,Golden Garlic,Wild Garlic,Gilliflower,Water Fern";

        Label1.Text = plants;

        //this line split string by comma and create string array.
        string[] splittedArray = plants.Split(',');

        //this line create a list from string array.
        List<string> splittedList = splittedArray.ToList();
        
        Label1.Text += "<br /><br />string splitted list elements......<br />";
        foreach (string s in splittedList)
        {
            Label1.Text += s + "<br />" ;
        }
    }  
</script>  
  
<html xmlns="http://www.w3.org/1999/xhtml">  
<head id="Head1" runat="server">  
    <title>c# example - string split to list</title>  
</head>  
<body>  
    <form id="form1" runat="server">  
    <div>  
        <h2 style="color:MidnightBlue; font-style:italic;">  
            c# example - string split to list
        </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 to list"  
            OnClick="Button1_Click"
            Height="40"  
            Font-Bold="true"  
            />  
    </div>  
    </form>  
</body>  
</html>
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