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VB.NET DirectoryInfo Linq Query

Posted on 2010-09-02
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Last Modified: 2012-05-10
I am trying to get a list of files from a directory using LINQ.

The files names are along these lines:
google_FQDN.sm.xml (where FQDN is the actual FQDN)

tmpDomains is a comma-delimited list of FQDNs as they are pulled form an XMl file.  This pulls correctly.

The issue I am having is that nothing gets displayed.   I have verified that there are 6 files in the directory.    Each one of these files contains one of the FDQNs from tmpDomains.

I assume it is in my LINQ Query.

Please help?!?

Code to follow:

'Get List of domains from Common.BasePath & "Sites\CurrentSites.xml" based on SiteID
    'and do this query based on that returned string
    Dim objXml As New XmlDocument, tmpDomains As String
    Dim objNode As XmlNode
    With objXml
        .Load(Common.BasePath & "Sites\CurrentSites.xml")
        objNode = .SelectSingleNode("//Sites/Site[contains(@id,'" & AdminStuff.SiteID & "')]")
        tmpDomains = objNode.Attributes("domains").Value
    End With
    Dim tmpString As New StringBuilder, x As String, tmpCt As Long = 0
    Dim Query = From f In New DirectoryInfo(Common.BasePath & "Sitemaps\").GetFiles() _
                Select f.Name, f.CreationTime _
                Where "*" & Name & "*" Like tmpDomains
    tmpString.Append("<table width=""100%"" cellpadding=""0"" cellspacing=""0"" id=""auditTable"" class=""audit_table"">" & vbCrLf)
    tmpString.Append("  <thead>" & vbCrLf)
    tmpString.Append("      <tr>" & vbCrLf)
    tmpString.Append("          <th>File</th>" & vbCrLf)
    tmpString.Append("          <th>Posted</th>" & vbCrLf)
    tmpString.Append("      </tr>" & vbCrLf)
    tmpString.Append("  </thead>" & vbCrLf)
    tmpString.Append("  <tbody>" & vbCrLf)
    For Each Item In Query
        If tmpCt Mod 2 Then x = " style=""background:#EEE;""" Else x = ""
        tmpString.Append("  <tr>" & vbCrLf)
        tmpString.Append("      <td" & x & "><a href=""http://" & AdminStuff.SiteManaging & "/SiteMaps/" & Item.Name & """ target=""_blank"">" & Item.Name & "</a></td>" & vbCrLf)
        tmpString.Append("      <td" & x & ">" & Item.CreationTime & "</td>" & vbCrLf)
        tmpString.Append("  </tr>" & vbCrLf)
        tmpCt += 1
    Next
    tmpString.Append("  </tbody>" & vbCrLf)
    tmpString.Append("</table>" & vbCrLf)
    Response.Write(tmpString.ToString())
    tmpString = Nothing

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Question by:kevp75
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8 Comments
 
LVL 25

Author Comment

by:kevp75
ID: 33591433
side notes.  the actual file list is:

google_www.o7th.com.xml
google_www.07th.com.xml
google_www.o7thwebdesign.com.xml
google_www.07thwebdesign.com.xml
google_07th.com.xml
google_o7th.com.xml

and the actual tmpDomains value is:
o7th.com, 07th.com, o7thwebdesign.com, 07thwebdesign.com, www.o7th.com, www.07th.com, www.o7thwebdesign.com, www.07thwebdesign.com

what I am trying to do is display the file list based on if they exist in tmpDomains
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LVL 47

Expert Comment

by:Wayne Taylor (webtubbs)
ID: 33591495
Looks like you might have your wildcards in the wrong place...

    Dim Query = From f In New DirectoryInfo(Common.BasePath & "Sitemaps\").GetFiles() _
                Select f.Name, f.CreationTime _
                Where Name Like "*" & tmpDomains & "*"

Wayne
0
 
LVL 25

Author Comment

by:kevp75
ID: 33595970
tried that way as well....same results
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LVL 47

Expert Comment

by:Wayne Taylor (webtubbs)
ID: 33596171
How about something like this?

        Dim arrDomains() As String = tmpDomains.Replace(" ", "").Split(","c)
        Dim Query = From f In New IO.DirectoryInfo(Common.BasePath & "Sitemaps\").GetFiles() _
            Select f.Name, f.CreationTime Where arrDomains.Contains(Name.Replace("google_", "").Replace(".xml", ""))

Wayne
0
 
LVL 25

Author Comment

by:kevp75
ID: 33617545
i will try this out later today
0
 
LVL 25

Author Comment

by:kevp75
ID: 33619252
Ok,

    Dim arrDomains() As String = tmpDomains.Split(", ")
    Dim Query = From f In New DirectoryInfo(Common.BasePath & "Sitemaps\").GetFiles() _
            Select f.Name, f.CreationTime Where arrDomains.Contains(Name.Replace("google_", "").Replace(".xml", "")) _
            Or arrDomains.Contains(Name.Replace("sitemap_", "").Replace(".xml", ""))


works, however, it does not grab the www files
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LVL 47

Accepted Solution

by:
Wayne Taylor (webtubbs) earned 500 total points
ID: 33621900
I created some xml files in a directory for testing, and this works fine for me....

        Dim tmpDomains As String = "o7th.com, 07th.com, o7thwebdesign.com, 07thwebdesign.com, www.o7th.com, www.07th.com, www.o7thwebdesign.com, www.07thwebdesign.com"

        Dim arrDomains() As String = tmpDomains.Replace(" ", "").Split(","c)
        Dim Query = From f In New DirectoryInfo("C:\ProgramData\SiteMaps\").GetFiles() _
                Select f.Name, f.CreationTime Where arrDomains.Contains(Name.Replace("google_", "").Replace(".xml", "")) _
                Or arrDomains.Contains(Name.Replace("sitemap_", "").Replace(".xml", ""))

        For Each v In Query
            MsgBox(v.Name)
        Next

Wayne
0
 
LVL 25

Author Closing Comment

by:kevp75
ID: 33653353
thank you
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