Detect URL from Label value and convert to link in ASP.Net using RegularExpression

Hi RichardSa,

Check this example. Now please take its reference and correct your code.

HTML

<asp:Label ID="lblData" Text="" runat="server" />
<style type="text/css">
    a:link {
        text-decoration: none;
        cursor: pointer;
        color: blue;
    }
</style>

Namespaces

C#

using System.Text.RegularExpressions;

VB.Net

Imports System.Text.RegularExpressions

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    lblData.Text = "Hello people please I have good news this morning, check it out on www.goodnews.com, it's one you don't want to miss";
    lblData.Text = ConvertTextUrlToLink(lblData.Text);
}

public string ConvertTextUrlToLink(string rawString)
{
    Regex linkParser = new Regex(@"\b(?:http://|www\.)\S+\b", RegexOptions.Compiled | RegexOptions.IgnoreCase);
    foreach (Match m in linkParser.Matches(rawString))
    {
        if (m.Value.IndexOf("http") != -1 || m.Value.IndexOf("https") != -1)
        {
            rawString = rawString.Replace(m.Value, string.Format("<a target='_blank' href = '{0}'>{0}</a>", m.Value));
        }
        else
        {
            rawString = rawString.Replace(m.Value, string.Format("<a target='_blank' href = 'http://{0}'>{0}</a>", m.Value));
        }
    }

    return rawString;
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    lblData.Text = "Hello people please I have good news this morning, check it out on www.goodnews.com, it's one you don't want to miss"
    lblData.Text = ConvertTextUrlToLink(lblData.Text)
End Sub

Public Function ConvertTextUrlToLink(ByVal rawString As String) As String
    Dim linkParser As Regex = New Regex("\b(?:http://|www\.)\S+\b", RegexOptions.Compiled Or RegexOptions.IgnoreCase)
    For Each m As Match In linkParser.Matches(rawString)
        If m.Value.IndexOf("http") <> -1 OrElse m.Value.IndexOf("https") <> -1 Then
            rawString = rawString.Replace(m.Value, String.Format("<a target='_blank' href = '{0}'>{0}</a>", m.Value))
        Else
            rawString = rawString.Replace(m.Value, String.Format("<a target='_blank' href = 'http://{0}'>{0}</a>", m.Value))
        End If
    Next

    Return rawString
End Function

Screenshot