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This sample shows the different ways we can format dates, using ASP.Net. Just pick a format type from the listbox, and the details about that particular formatting will appear on the right.
‘ Code Behind:
Dim myDate As DateTime
Protected Sub Page_Load(ByVal Source As Object, ByVal E As EventArgs)
myDate = DateTime.Now
If Not Page.IsPostBack Then
lbDate.Items.Add(New ListItem("Short Date Format", "d"))
lbDate.Items.Add(New ListItem("Long Date Format", "D"))
lbDate.Items.Add(New ListItem("Short Time Format", "t"))
lbDate.Items.Add(New ListItem("Long Time Format", "T"))
lbDate.Items.Add(New ListItem("Full Date/Time Format (Short time)", "f"))
lbDate.Items.Add(New ListItem("Full Date/Time Format (Long time)", "F"))
lbDate.Items.Add(New ListItem("General Date/Time Format (Short time)", "g"))
lbDate.Items.Add(New ListItem("General Date/Time Format (Long time)", "G"))
lbDate.Items.Add(New ListItem("Month day format", "m"))
lbDate.Items.Add(New ListItem("RFC 1123 format", "r"))
lbDate.Items.Add(New ListItem("Sortable date/time format", "s"))
lbDate.Items.Add(New ListItem("Universable sortable date/time “ & _
“format (short)", "u"))
lbDate.Items.Add(New ListItem("Universable sortable date/time “ & _
“format (long)", "U"))
lbDate.Items.Add(New ListItem("Year Month", "Y"))
End If
End Sub
Protected Sub doDate(ByVal Source As Object, ByVal E As EventArgs)
If lbDate.SelectedItem.Value <> "None" Then
lblPattern.Text = lbDate.SelectedItem.Value
lblType.Text = lbDate.SelectedItem.Text
lblOutput.Text = "String.Format(""{0:" & _
lbDate.SelectedItem.Value & "}"", Item)"
lblExample.Text = String.Format("{0:" & _
lbDate.SelectedItem.Value & "}", myDate)
End If
End Sub
‘ ASPX page:
<%@ Page Language="VB" %>
<html>
<head>
<title>Formatting Dates</title>
</head>
<body>
<form id="form1" runat="server">
<table>
<tr>
<td align="Left" valign="Top" rowspan="5">
<i><b>Select Formatting Type:</b></i><br>
<asp:ListBox ID="lbDate" AutoPostBack="True"
OnSelectedIndexChanged="doDate" runat="server" />
</td>
</tr>
<tr>
<td align="Right" valign="Top">
<b>Format Pattern:</b>
</td>
<td align="Left" valign="Top">
<asp:Label ID="lblPattern" runat="server" />
</td>
</tr>
<tr>
<td align="Right" valign="Top">
<b>Format Type:</b>
</td>
<td align="Left" valign="Top">
<asp:Label ID="lblType" runat="server" />
</td>
</tr>
<tr>
<td align="Right" valign="Top">
<b>Output: </b>
</td>
<td align="Left" valign="Top">
<asp:Label ID="lblOutput" runat="server" />
</td>
</tr>
<tr>
<td align="Right" valign="Top">
<b>Example: </b>
</td>
<td align="Left" valign="Top">
<asp:Label ID="lblExample" runat="server" />
</td>
</tr>
</table>
</form>
</body>
</html>
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