The phrase iterate a directory tree means to access each file in each nested subdirectory under a specified root folder, to any depth. You do not necessarily have. Importing files into a SharePoint document library using regular expressions and WebDAV. I want to get the files in folder and also in its subfolders. The following code does not get the files in its subfolder string files Directory. GetFiles. Note. The Razor syntax is based on the C programming language, and thats the language thats used most often with ASP. Bubble Struggle 2 Flash Game here. NET Web Pages. However, the Razor syntax also. I would like to loop through the files of a directory using vba in Excel 2010. In the loop, I will need the filename, and the date at which the file was formatted. C Helper contains tips, tricks, and example programs for C programmers. Importing files into a Share. Point document library using regular expressions and Web. DAVI just finished writing a utility to export a folder hierarchy of files from my existing custom extranet to a Share. Point document library. The custom extranet was database driven and allowed the user to name a file or folder whatever he or she wished up to a maximum of 5. Quadruple Your Skills Learn C, Microsoft Visual Studio 2013, Debugging and SQL Server Basics This article describes how to upload files through jQuery AJAX in ASP. NET MVC. When I wrote this extranet 6 years ago in classic ASP, Id just HTML encode whatever name the user wished and store it in the database. Whenever a folder or file was retrieved, it was always by using the ever so not user friendly URL parameter id. I already knew I would need to remove restricted characters from my folder and files names that Share. Point does not allow. Furthermore, Share. Points document libraries actually display the full folder path in the URL, which means Ill need to be concerned about the total path length. My migration plan was to build a physical folder hierarchy for staging the files, then use Web. DAV Share. Points explorer view for document libraries for importing the hierarchy into Share. Point within Windows. This method will allow me to keep the utility focused on a simpler task than actually importing the files into Share. Point and make sure I dont have to worry about server timeouts. Naming restrictions. KB/files/391232/Initial_window.JPG' alt='C# Loop Through Folder Files' title='C# Loop Through Folder Files' />Share. Point has naming restrictions for sites, groups, folders and files. Arduino Simulator Diy Safely. Since Im only interested in folders and files, only the following restrictions will be considered. Invalid characters You cannot use the period character consecutively in the middle the name You cannot use the period character as the first or the last character Someone already familiar with this topic will notice that I added the apostrophe to the official restricted character list. During my own testing, Share. In my final year. NET project, I had to code up a module to obtain the visited URL history of at least one web browser and delete some or all of the URLs. Point complained when I uploaded a file with an apostrophe, so I added it to the list. Length restrictions. K.png' alt='C# Loop Through Folder Files' title='C# Loop Through Folder Files' />Besides naming restrictions, Share. Point also has the following length restrictions from KB 8. How To Download Whatsapp For Samsung Galaxy Trend Neo Dual Sim'>How To Download Whatsapp For Samsung Galaxy Trend Neo Dual Sim. A file or a folder name cannot be longer than 1. The total URL length cannot be longer than 2. OlGp.jpg' alt='C# Loop Through Folder Files' title='C# Loop Through Folder Files' />Regarding the 1. Share. Points UI to get to this limit. The text boxs maxlength property is set to 1. I dont have any inside sources, but my guess is that the Share. Point team did this to make sure the total file name would not exceed 1. Office 2. 00. 7 file formats like docx and xlsx. J0PeXcAVaUM/0.jpg' alt='C# Loop Through Folder Files' title='C# Loop Through Folder Files' />The odd thing is that the folder text box is limited to 1. However, if you put the document library into Explorer view, you can rename a folder to allow the full 1. I bet theres some reuse going on between the data entry screens for the file and the folder in this case also something a programmer on the Share. Point team might want to do. URLs. Ive done some Web. DAV importing to this particular Share. Point farm in the past, and Im pretty sure I ran into paths close to the 2. This article shall describe an approach to working with delimited text files. In general it will discuss the construction of the connection strings and schema. I investigated this. I found several instances where the total URL exceeded 2. KB 8. 94. 63. 0 mentioned above also says To determine the length of a URL,. URL to Universal Character Set UCS Transformation Format 1. UTF 1. 6 format, and then count the number of 1. However, it should probably say something like decode the URL first, then count the characters to make it easier to understand. I created a folder hierarchy to test out the 2. Following is a URL notice the 2. When the URL is encoded, it contains 3. TestingDocumentsA2. Subfolder2. 012. The decoded URL is http intranet. TestingDocumentsA longer than usual folder name for testingSubfolder 1 also has a long name3rd level subfolder about related documents4th level subfolder about more specific documents5th level subfolders are possible in this hierarchy1. Counting the characters in the URL gave me 2. To get closer to 2. I subtracted the 2. Length of http intranet. I didnt get a perfect 2. This is just a guess on my part, though. Why the 2. 60 character limit A 2. URL is interesting, considering both Windows and most internet browsers support paths much longer. Its not merely a coincidence that 2. MAXPATH constant from the Windows API. NET uses MAXPATH because. NET relies on the Windows API behind the scenes. There are API workarounds, as discussed on the BCL team blog, but I think its safe to assume that this limit is imposed on Share. Point by. NET in some way. Removing invalid characters and patterns using a regular expression. The String objects Replace method doesnt contain an overload for replacing an array of strings, so I looked into using a regular expression to clean folder and file names. Regular expressions have their own special characters that must be escaped if used for searching. Out of these, the following are also Share. Points invalid characters These are the characters that will need to be escaped in our regular expression. After a bit of fiddling, I came up with the following 4 expressions lt for removing invalid characters. I added a couple of rules to these expressions because of my migration strategy. Since Im using Web. DAV and building a physical folder hierarchy in Windows, I also need to be concerned about any additional restrictions imposed by the OS a folder or file name cant end with a space. Also, Im replacing consecutive spaces with a single space. All expressions are used by Regex. Replace. Expressions 1 and 3 are replaced by String. Empty. 2 and 4 are replaced by a period and a space, respectively. In regards to the order of the replacements, its important that the invalid character replacement is applied first. Combining these expressions and replacing at once might create a problem after invalid characters are replaced. For example, the name. After all replacements have been made, its still possible to have one of the rules violated. For example, a folder named Folder one. It would still be invalid after a 2nd pass. Because of this, the beginning and end rule should be used in a loop until no matches are found. This doesnt help performance, but I was willing to compromise since my largest extranet 9. Plus, I know the minute I post this someones going to read it and say, What was he thinking Its so much faster to do it this way. Fixing length restrictions. To make sure you include as many characters from the original folder or file name as possible, the naming restrictions should be enforced before the length restrictions. To know how long a file name can be, its important to know how close we are to the maximum allowed path length. Since Im using a physical file hierarchy to stage the files, I can simply check the current folders path length. Instead of going into too much detail about this, take a look at the max. Length integer in the following code listing. Length is what I used to determine how long a folder or file could be given the current path length. An example method in CFollowing is the method I ended up with, along with some global variable initializations. Youll notice I added the tab character to the invalid characters list. During an export, I found a file name with embedded tab characters, so it was added to the list as well. MAXFOLDERLENGTH 1. MAXFILELENGTH 1. MAXURLLENGTH 2. Regex invalid. Chars. Regex new. Regext lt, Regex. Options. Compiled. Regex invalid. Rules. Regex new. Regex. Regex. Options. Compiled.