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PO
primarykey
Id
206523
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2008-10-15T21:14:01.450
FavoriteCount
0
LastActivityDate
2008-11-17T22:11:45.623
LastEditDate
2008-11-17T22:11:45.623
LastEditorUserId
17862
OwnerUserId
17862
ParentId
206324
PostTypeId
2
Score
4
ViewCount
0
LastEditorDisplayName
Mike Spross
text
Body
This code doesn't do what you expect: <pre><code>If Dir(SigString) <> "" Then Signature = GetBoiler(SigString) Else Signature = "" End If </code></pre> If you pass an empty string (<code>""</code>) or <code>vbNullString</code> to <code>Dir</code>, it will return the name of the first file in the current directory path (the path returned by <code>CurDir$</code>). So, if <code>SigString</code> is empty, your <code>If</code> condition will evaluate to <code>True</code> because <code>Dir</code> will return a non-empty string (the name of the first file in the current directory), and <code>GetBoiler</code> will be called. And if <code>SigString</code> is empty, the call to <code>fso.GetFile</code> will fail. You should either change your condition to check that <code>SigString</code> isn't empty, or use the <code>FileSystemObject.FileExists</code> method instead of <code>Dir</code> for checking if the file exists. <code>Dir</code> is tricky to use precisely because it does things you might not expect it to do. Personally, I would use <code>Scripting.FileSystemObject</code> over <code>Dir</code> because there's no funny business (<code>FileExists</code> returns <code>True</code> if the file exists, and, well, <code>False</code> if it doesn't). What's more, <code>FileExists</code> expresses the intent of your code much clearly than <code>Dir</code>. Method 1: Check that <code>SigString</code> is non-empty first <pre><code>If SigString <> "" And Dir(SigString) <> "" Then Signature = GetBoiler(SigString) Else Signature = "" End If </code></pre> Method 2: Use the <code>FileSystemObject.FileExists</code> method <pre><code>Dim fso As Object Set fso = CreateObject("Scripting.FileSystemObject") If fso.FileExists(SigString) Then Signature = GetBoiler(SigString) Else Signature = "" End If </code></pre>
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1. POHow to check for empty array in vba macro
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1. USMike Spross
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1. USMike Spross
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