Replace words using XML file

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February 5th, 2004, 03:21 PM

Rich

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Join Date: Sep 2003

Location: Fort Lauderdale, FL

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Replace words using XML file

This article shows how to pass a string of text from a TEXTBOX server control to a routine that replaces words in the string. This is handy in replacing words before they get committed to the database, email or where ever this text is being sent. A dataset is created to and uses the READXML method to read an XML file into the newly created dataset to compare the words.

Here is the code: <%@ Page Debug="True" Language="vb" %>
<%@ import Namespace="System.Data" %>
<%@ import Namespace="System.Data.SQLClient" %>

<script runat="server">
Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Page.IsPostBack Then
Dim w As String = Request.Form("TextBox1")
Label1.Text = "Statement with Replaced words:<b>" & badWords(w) & "</b>"
End If
End Sub

Function badWords(mytext As String) As String
Dim badWordsDS As New DataSet("Dataset")
Dim myRow As DataRow

badWordsDS.ReadXml(Server.Mappath("badwords.xml"))

Dim ct As Integer
ct = badWordsDS.Tables(0).Rows.Count
label2.text = "Amount of Records in XML file: <b>" & ct.ToString() & "</b>"

For Each myRow In badWordsDS.Tables(0).Rows
mytext = mytext.ToLower.Replace(myRow(0).ToString(), "ReplacementText")
Next

Return mytext
End Function
</script>

<html>
<head>
<title>Replace text using XML File</title>
</head>
<body>
<form id="Form1" method="post" runat="server">
<asp:TextBox id="TextBox1" runat="server"></asp:TextBox>
<br />
<asp:Button id="Button1" runat="server" Text="Button"></asp:Button>
<br />
<b>Textbox data</b>
<br />
<asp:Label id="Label1" runat="server">Statement with Replaced words</asp:Label>
<br />
<br />
<b>Amount of records in XML file</b>
<br />
<asp:Label id="Label2" runat="server">Amount of Words in XML file</asp:Label>
</form>
</body>
</html>

XML File used in replacing text

<swearwords>
<menu>
<word>badword</word>
</menu>
<menu>
<word>badword2</word>
</menu>
</swearwords>

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