How to replace certain word with a hyperlink using C#
(09 May 2007)
This code shows, using C#, how to build a function that replaces certain word (-combinations)with a hyperlink and returns a HTML formatted string.
public static string InsertHyperLink(string in_Text, string in_TextToHyperLink, string in_HyperLink)
{
int lv_Pointer = 0;
while (lv_Pointer > -1 && lv_Pointer < in_Text.Length)
{
lv_Pointer = in_Text.ToLower().IndexOf(in_TextToHyperLink.ToLower(),lv_Pointer);
if (lv_Pointer >= 0)
{
in_Text = in_Text.Substring(0,lv_Pointer) +
"<a href=\"" + in_HyperLink + "\" style=text-decoration:none;font-size:11px;>" +
in_Text.Substring(lv_Pointer,in_TextToHyperLink.Length) +
"</a>" +
in_Text.Substring(lv_Pointer + in_TextToHyperLink.Length);
lv_Pointer = lv_Pointer + 78 + in_HyperLink.Length + in_TextToHyperLink.Length;
}
}
return in_Text;
}
Labels: formatting, HTML, hyperlink
Posted by Xander Zelders
How to Highlight a specific word in HTML content (C#)
This code snippet shows how to hightlight (or apply a certain style to) a specific word (or combination of words) from a striong in a browser.
public static string HighLight(string in_Text, string in_TextToHighLight, string lv_Style)
{
int lv_Pointer = 0;
while (lv_Pointer > -1)
{
lv_Pointer = in_Text.ToLower().IndexOf(in_TextToHighLight.ToLower(),lv_Pointer);
if (lv_Pointer >= 0)
{
in_Text = in_Text.Substring(0,lv_Pointer) +
"" +
in_Text.Substring(lv_Pointer,in_TextToHighLight.Length) +
"" +
in_Text.Substring(lv_Pointer + in_TextToHighLight.Length);
lv_Pointer = lv_Pointer + 14 + lv_Style.Length + in_TextToHighLight.Length;
}
}
return in_Text;
}
The function returns a HTML formatted string containing the original in_Text with a style (parameter: lv_Style) applied to the given words (parameter: in_TextToHighLight). To change all words 'Internet' to the font color 'red' call the funtion like this:
string MyResultHTML = HighLight(MyOriginalHTML, "internet", "font-color:red");
Labels: formatting, HighLight, HTML
Posted by Xander Zelders
How to remove HTML-tags from web content (C#)
(16 April 2007)
Using webcontent in applications can be very annoying since webcontent usually contains lots of HTML elements. With one simple action, using regular expressions, all of these HTML elements can be removed from the content. What's left is a clean string, without HTML formatting.
Snippet:
using System.Text.RegularExpressions;
...
public static string RemoveHTML(string in_HTML)
{
return Regex.Replace(lv_HTML, "<(.|\n)*?>", "");
}
Labels: HTML, Regular Expression
Posted by Xander Zelders
