Dictionary sort by datetime
dictionary-sort-by-datetime.aspx
<%@ Page Language="C#" AutoEventWireup="true"%>
<!DOCTYPE html>
<script runat="server">
protected void Button1_Click(object sender, System.EventArgs e)
{
//initialize a dictionary with date time values.
Dictionary<int, DateTime> dc = new Dictionary<int, DateTime>() {
{1,DateTime.Today},
{2,DateTime.Today.AddDays(3)},
{3,DateTime.Today.AddDays(1)},
{4,DateTime.Today.AddDays(10)},
{5,DateTime.Today.AddDays(5)},
};
Label1.Text = "dictionary keys and values..........";
foreach (KeyValuePair<int, DateTime> pair in dc)
{
Label1.Text += "<br />" + pair.Key + " ........ " + pair.Value.ToShortDateString();
}
//ascending sorted dictionary by date time value.
dc = dc.OrderBy(x => x.Value).ToDictionary(x => x.Key, x => x.Value);
Label1.Text += "<br /><br />ascending sorted dictionary by date time value..........";
foreach (KeyValuePair<int, DateTime> pair in dc)
{
Label1.Text += "<br />" + pair.Key + " ........ " + pair.Value.ToShortDateString();
}
//descending sorted dictionary by date time values.
dc = dc.OrderByDescending(x => x.Value).ToDictionary(x => x.Key, x => x.Value);
Label1.Text += "<br /><br />descending sorted dictionary by date time values..........";
foreach (KeyValuePair<int, DateTime> pair in dc)
{
Label1.Text += "<br />" + pair.Key + " ........ " + pair.Value.ToShortDateString();
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>c# example - dictionary sort by datetime</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2 style="color:MidnightBlue; font-style:italic;">
c# example - dictionary sort by datetime
</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 sort by datetime"
OnClick="Button1_Click"
Height="40"
Font-Bold="true"
/>
</div>
</form>
</body>
</html>
- How to sort a Dictionary in ascending and descending order
- How to use Dictionary TryGetValue
- How to make Dictionary TryGetValue case insensitive
- How to remove items from a Dictionary while iterating
- How to remove items from a Dictionary in loop
- How to remove items from a Dictionary by condition
- How to remove an item from Dictionary by value
- How to convert Dictionary values to list
- How to convert Dictionary keys to list
- How to access Dictionary items by index
