<p>Visual FoxPro Toolkit for .NET DisplayPath() Method</p><p>Receives a filename with path and maxlength as parameters and returns a truncated version of the path for display purposes </p><p>[Visual Basic] Public Shared Function DisplayPath(ByVal cFileNameWithPath As String, ByVal nMaxLength As Integer) As String</p><p>[C#] public static string DisplayPath(string cFileNameWithPath, int nMaxLength)</p><p>Example</p><p>[Visual Basic] Dim lcFile As String = "c:\My Folders\My Custom Folders\My Files\ResultFile.txt" DisplayPath(lcFile, 10) 'returns ResultFile DisplayPath(lcFile, 15) 'returns \ResultFile.txt DisplayPath(lcFile, 20) 'returns c:\...\ResultFile.txt DisplayPath(lcFile, 30) 'returns c:\...\My Files\ResultFile.txt [C#] string lcFile = @"c:\My Folders\My Custom Folders\My Files\ResultFile.txt" DisplayPath(lcFile, 10) //returns ResultFile DisplayPath(lcFile, 15) //returns \ResultFile.txt DisplayPath(lcFile, 20) //returns c:\...\ResultFile.txt DisplayPath(lcFile, 30) //returns c:\...\My Files\ResultFile.txt</p><p>Implementation</p><p>[Visual Basic] Public Shared Function DisplayPath(ByVal cFileNameWithPath As String, ByVal nMaxLength As Integer) As String 'We will begin by taking the string and splitting it apart into an array</p><p>'Check if we are within the max length then return the whole string If cFileNameWithPath.Length <= nMaxLength Then Return cFileNameWithPath End If</p><p>'Split the string into an array using the \ as a delimiter Dim cSepatator() As Char = {"\"c}</p><p>Dim aStr() As String aStr = cFileNameWithPath.Split(cSepatator)</p><p>'The first value of the array is taken in case we need to create the string Dim lcBegin As String = aStr(0) + "\..." Dim lnBeginLength As Integer = aStr(0).Length + 3 Dim lcRetVal As String = "" Dim lnLength As Integer = lcRetVal.Length Dim lAddHeader As Boolean = False</p><p>Dim s As String = "" Dim n As Integer = 0</p><p>'Now we loop backwards through the string Dim i As Integer = 0 For i = aStr.Length - 1 To 0 - 1 Step i - 1 s = "\"c + aStr(i) n = s.Length</p><p>'Check if adding the current item does not increase the length of the max string If lnLength + n <= nMaxLength Then 'In this case we can afford to add the item lcRetVal = s + lcRetVal lnLength += n Else Exit For End If</p><p>'Check if there is room to add the header and if so then reserve it by incrementing the length If (lAddHeader = False) And (lnLength + lnBeginLength <= nMaxLength) Then lAddHeader = True lnLength += lnBeginLength End If Next</p><p>'Add the header if the bool is true If lAddHeader = True Then lcRetVal = lcBegin + lcRetVal End If</p><p>'It is possible that the last value in the array itself was long. In such case simply use the substring of the last value If lcRetVal.Length = 0 Then lcRetVal = aStr(aStr.Length - 1).Substring(0, nMaxLength) End If</p><p>Return lcRetVal End Function</p><p>[C#] public static string DisplayPath(string cFileNameWithPath, int nMaxLength) { //We will begin by taking the string and splitting it apart into an array</p><p>//Check if we are within the max length then return the whole string if (cFileNameWithPath.Length <= nMaxLength) { return cFileNameWithPath; }</p><p>//Split the string into an array using the \ as a delimiter char[] cSeparator = {'\\'}; string[] aStr; aStr = cFileNameWithPath.Split(cSeparator);</p><p>//The first value of the array is taken in case we need to create the string string lcBegin = aStr[0] + "\\..."; int lnBeginLength = aStr[0].Length + 3; string lcRetVal = ""; int lnLength = lcRetVal.Length ; bool lAddHeader = false;</p><p> string s = ""; int n = 0;</p><p>//Now we loop backwards through the string int i = 0; for (i = aStr.Length - 1 ; i > 0; i--) { s = '\\' + aStr[i]; n = s.Length;</p><p>//Check if adding the current item does not increase the length of the max string if (lnLength + n <= nMaxLength) { //In this case we can afford to add the item lcRetVal = s + lcRetVal; lnLength += n; } else { break; }</p><p>//Check if there is room to add the header and if so then reserve it by incrementing the length if ((lAddHeader == false) && (lnLength + lnBeginLength <= nMaxLength)) { lAddHeader = true; lnLength += lnBeginLength; } }</p><p>//Add the header if the bool is true if (lAddHeader == true) { lcRetVal = lcBegin + lcRetVal; }</p><p>//It is possible that the last value in the array itself was long. In such case simply use the substring of the last value if (lcRetVal.Length == 0) { lcRetVal = aStr[aStr.Length-1].Substring(0,nMaxLength); }</p><p> return lcRetVal; }</p><p>Requirements</p><p>Namespace: VFPToolkit Class: VFPToolkit.files Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows .NET Server family Assembly: VFPToolkit (in VFPToolkitNET.dll)</p><p>See Also VFPToolkit.files Members | VFPToolkit Namespace </p>