Dictionary from list
dictionary-from-list.aspx
<%@ Page Language="C#" AutoEventWireup="true"%>
<!DOCTYPE html>
<script runat="server">
protected void Button1_Click(object sender, System.EventArgs e)
{
//initialize a new generic list of keyvaluepair.
List<KeyValuePair<int, string>> birdsList = new List<KeyValuePair<int, string>>();
//create new keyvaluepair.
KeyValuePair<int, string> bird1 = new KeyValuePair<int, string>(1, "Canada Goose");
KeyValuePair<int, string> bird2 = new KeyValuePair<int, string>(2, "Cackling Goose");
KeyValuePair<int, string> bird3 = new KeyValuePair<int, string>(3, "Egyptian Goose");
//add keyvaluepair to lsit
birdsList.Add(bird1);
birdsList.Add(bird2);
birdsList.Add(bird3);
Label1.Text = "generic list elements..........";
foreach (KeyValuePair<int, string> pair in birdsList)
{
Label1.Text += "<br />" + pair.Key + " ........ " + pair.Value;
}
//create a dictionary from generic list.
Dictionary<int, string> birds = birdsList.ToDictionary(x=>x.Key,x=>x.Value);
Label1.Text += "<br /><br />dictionary elements..........";
foreach (KeyValuePair<int, string> pair in birds)
{
Label1.Text += "<br />" + pair.Key + " ........ " + pair.Value;
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>c# example - dictionary from list</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2 style="color:MidnightBlue; font-style:italic;">
c# example - dictionary from 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="dictionary from list"
OnClick="Button1_Click"
Height="40"
Font-Bold="true"
/>
</div>
</form>
</body>
</html>

- How to iterate over a Dictionary using foreach loop
- How to initialize a Dictionary
- How to sort a Dictionary by key
- How to sort a Dictionary by value
- How to sort a Dictionary in ascending and descending order
- How to sort a Dictionary by DateTime value
- How to iterate through a Dictionary using for loop
- How to find duplicate values from a Dictionary
- How to reverse a Dictionary items
- How to convert a Dictionary to a string