📄 filefreetext.aspx

📁 asp.net技术内幕的书配源码

💻 ASPX

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<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OleDb" %>
<Script Runat="Server">

Sub Button_Click( s As Object, e As EventArgs )
  Dim conMyData As OleDbConnection
  Dim strSearch As String
  Dim cmdSearch As OleDbCommand
  Dim dtrSearch As OleDbDataReader

  conMyData = New OleDbConnection( "Provider=MSIDXS;Data Source=Web" )
  strSearch = "SELECT RANK, FileName, VPath, Characterization " & _
    "FROM SCOPE() " & _
    "WHERE FREETEXT( '" & txtSearchPhrase.Text & _
    "') " & _
    "ORDER BY RANK DESC"
  cmdSearch = New OleDbCommand( strSearch, conMyData )
  conMyData.Open()
  Try
    dtrSearch = cmdSearch.ExecuteReader()
    lblResults.Text = "<ul>"
    While dtrSearch.Read
      lblResults.Text &= "<li> (" & dtrSearch( "RANK" ) / 10 & "%) "
      lblResults.Text &= "<a href=""" & dtrSearch( "VPath" ).ToString()
      lblResults.Text &= """>"
      lblResults.Text &= dtrSearch( "FileName" ) & "</a><br>"
      lblResults.Text &= dtrSearch( "Characterization" )
      lblResults.Text &= "<p>"
    End While
  Catch exc As Exception
    lblResults.Text = "Please rephrase your query"
  End Try
  conMyData.Close()
End Sub

</Script>

<html>
<head><title>FileFreeText.aspx</title></head>
<body>

<form Runat="Server">

<h2>File Free Text Search:</h2>
<asp:TextBox
  ID="txtSearchPhrase"
  Columns="50"
  Runat="Server" />
<asp:Button
  Text="Search!"
  OnClick="Button_Click"
  Runat="Server" />
<hr>
<asp:Label
  ID="lblResults"
  EnableViewState="False"
  Width="400px"
  Runat="Server" />

</form>
</body>
</html>

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