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    <p>From what I understand that attribute is only recognised by certain file based methods to help structure content written to/read from files. The compiler will not use that attribute to alter how a variable assignment is compiled.</p> <p>Taken from MSDN:</p> <blockquote> <p>The VBFixedStringAttribute is informational and cannot be used to convert a variable length string to a fixed string. The purpose of this attribute is to modify how strings in structures and non-local variables are used by methods or API calls that recognize the VBFixedStringAttribute. Keep in mind that this attribute does not change the actual length of the string itself.</p> </blockquote> <p>The last sentence is the important bit:</p> <blockquote> <p>Keep in mind that this attribute does not change the actual length of the string itself.</p> </blockquote> <p><a href="http://msdn.microsoft.com/en-us/library/microsoft.visualbasic.vbfixedstringattribute.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/microsoft.visualbasic.vbfixedstringattribute.aspx</a></p> <p>EDIT 1:</p> <p>A quick example on how to auto-padding a string based on a fixed length:</p> <pre><code>Function FixedLengthString(ByVal value As String, ByVal totalLength As Integer, ByVal padding As Char) As String Dim length = value.Length If (length &gt; totalLength) Then Return value.Substring(0, totalLength) Return value.PadRight(totalLength, padding) End Function </code></pre> <p>Here you can pass in a string and if the length of the string is greater than the specified total length you will get a string matching that length. Anything less and you'll get the string plus the padding character upto the specified total length.</p> <p>This can be improved with error checking and maybe making the method an extension method so you don't have to pass "value".</p>
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    1. POHow to declare a fixed length string in vb.net without increasing the length during assignment
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    1. COSo I have to do some extra coding to get it to be fixed length?
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    2. COYes. If you only want "x" amount of characters assigned, then you need to check if the length is greater than "x", then do a SubString otherwise pad the string variable you are assigning to "myvar".
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    3. COI have added a quick example of using SubString/PadRight to get a fixed length string with/without padding.
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