In this article I will explain with an example, how to get Current Page and Previous Page names in ASP.Net using C# and VB.Net.
This article will illustrate how to extract Current Page and Previous Page names from URL using the Request.Url and Request.UrlReferrer properties in ASP.Net.
HTML Markup
Page1
The HTML Markup consists of following elements:
Anchor – For redirecting to Page2.
Label – For displaying name of the Current Page.
<a href="Page2.aspx">Redirect to Page 2</a>
<br />
<br />
<asp:Label ID="lblMessage" runat="server"></asp:Label>
Page2
The HTML Markup consist of following element:
Label – For displaying name of the Current Page and Previous Page.
<asp:Label ID="lblMessage" runat="server"></asp:Label>
Concept
Request.Url.Segments
The Request.Url property contains all the information about the Current Page.
The Request.Url.Segments property is an Array built by splitting the Current Page URL by Slash (/) character i.e. Segments of the URL.
The last element of the Array of Segments contains the name of the Current Page.
Request.UrlReferrer
This is same as Request.Url.Segments but the only difference is that it contains all information about the Previous Page.
Getting Current Page and Previous Page names using C# and VB.Net
Current Page
Inside the Page_Load event handler, the last element i.e. Name of the Current Page is determined by subtracting the length of Segment Array of Request.Url property with 1.
Finally, the determined name are displayed using Label.
C#
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
//Get the Current Page Name.
string currentPageName = Request.Url.Segments[Request.Url.Segments.Length - 1];
lblMessage.Text = "Current Page: " + currentPageName;
}
}
VB.Net
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
If Not Me.IsPostBack Then
'Get the Current Page Name.
Dim currentPageName As String = Request.Url.Segments((Request.Url.Segments.Length - 1))
lblMessage.Text = "Current Page: " + currentPageName
End If
End Sub
Previous Page
Inside the Page_Load event handler, the last element i.e. Name of the Previous Page is determined by subtracting the length of Segment Array of Request.UrlReferrer property with 1.
Finally, the determined names are displayed using Label.
Note: The Request.UrlReferrer property is NULL if there is no Previous Page and hence it is recommended to make use of NULL checking to avoid exceptions.
C#
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
//Get the Current Page Name.
string currentPageName = Request.Url.Segments[Request.Url.Segments.Length - 1];
lblMessage.Text = "Current Page: " + currentPageName + "<br /><br />";
//Get the Previous Page Name.
if (Request.UrlReferrer != null)
{
string previousPageName = Request.UrlReferrer.Segments[Request.UrlReferrer.Segments.Length - 1];
lblMessage.Text += "Previous Page: " + previousPageName;
}
}
}
VB.Net
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
If Not Me.IsPostBack Then
'Get the Current Page Name.
Dim currentPageName As String = Request.Url.Segments((Request.Url.Segments.Length - 1))
lblMessage.Text = "Current Page: " & currentPageName & "<br /><br />"
'Get the Previous Page Name.
If (Not (Request.UrlReferrer) Is Nothing) Then
Dim previousPageName As String = Request.UrlReferrer.Segments((Request.UrlReferrer.Segments.Length - 1))
lblMessage.Text += "Previous Page: " & previousPageName
End If
End If
End Sub
Screenshot
![Get Current Page and Previous Page names in ASP.Net]()
Demo
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