Convert 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 convert 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 String by a comma delimiter.
The String Split(Char[], StringSplitOptions) method splits a String into substrings based on specified delimiting characters and String split options. In this example .net c# code, we removed the empty entries using the String split options StringSplitOptions.RemoveEmptyEntries. So, using the Split(Char[], StringSplitOptions) method we can split a String into a String Array by a comma delimiter.
The String Split(char[]? separator, StringSplitOptions options) method returns an Array whose elements contain the substrings in this String that are delimited by one or more characters in the separator. So, we get a String Array from the source String instance by splitting it by 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. This is the way we have applied in this .net c# tutorial to convert a String instance into a List object.
The following .net c# tutorial code demonstrates how we can convert 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 String by a comma delimiter.
The String Split(Char[], StringSplitOptions) method splits a String into substrings based on specified delimiting characters and String split options. In this example .net c# code, we removed the empty entries using the String split options StringSplitOptions.RemoveEmptyEntries. So, using the Split(Char[], StringSplitOptions) method we can split a String into a String Array by a comma delimiter.
The String Split(char[]? separator, StringSplitOptions options) method returns an Array whose elements contain the substrings in this String that are delimited by one or more characters in the separator. So, we get a String Array from the source String instance by splitting it by 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. This is the way we have applied in this .net c# tutorial to convert a String instance into a List object.
string-to-generic-list.aspx
<%@ Page Language="C#" AutoEventWireup="true"%>
<!DOCTYPE html>
<script runat="server">
protected void Button1_Click(object sender, System.EventArgs e)
{
//this line create a string variable.
string birds = "Crab Plover, Banded Stilt, Masked Lapwing, Kentish Plover";
Label1.Text = "string of birds............<br />";
Label1.Text += birds;
//split string and create a generic list with string data type
List<string> listOfBirds = birds.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries).ToList();
Label1.Text += "<br /><br />list of birds............";
foreach (string bird in listOfBirds)
{
Label1.Text += "<br />" + bird;
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>c# example - string to generic list</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2 style="color:MidnightBlue; font-style:italic;">
c# example - string to generic list
</h2>
<hr width="550" align="left" color="Gainsboro" />
<asp:Label
ID="Label1"
runat="server"
Font-Size="Large"
>
</asp:Label>
<br /><br />
<asp:Button
ID="Button1"
runat="server"
Text="string to generic list"
OnClick="Button1_Click"
Height="40"
Font-Bold="true"
/>
</div>
</form>
</body>
</html>

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