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PODirectory Not Found exception when deployed to server
 

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    <p>The goal I have is simple: From a web app, write to a folder on the D drive of a local server. When I run the code locally (in the debugger) it writes to the folder beautifully. When I publish the code to the web server it cannot see its own D drive, or shared folder. I have tried every permutation of the file path string I can imagine, including absurd ones.</p> <p>Examples:</p> <pre><code>filepath = "\\\\wsbliwad\\d\\Payroll\\PaperlessPay"; filepath = "\\wsbliwad\\d\\Payroll\\PaperlessPay"; filepath = "\\wsbliwad\d\Payroll\PaperlessPay"; filepath = "\\\\wsbliwad\\Payroll\\PaperlessPay"; filepath = "\\wsbliwad\Payroll\PaperlessPay"; filepath = @"\\wsbliwad\payroll\PaperlessPay"; filepath = @"\\\\wsbliwad\\payroll\\PaperlessPay"; filepath = @"\\wsbliwad\\payroll\\PaperlessPay"; filepath = @"\\wsbliwad\d\Payroll\PaperlessPay" </code></pre> <p>... and a host of others as well.</p> <p>Using Response.Write statements to get a sense of what's happening, if I run the code locally, I get the following feedback:</p> <pre><code>Path one = \\wsbliwad\payroll\PaperlessPay Exists = True Path two = \\wsbliwad\\payroll\\PaperlessPay Exists = True Path one = \\\\wsbliwad\\payroll\\PaperlessPay Exists = True Host Name is CPU1476 AD User is ANVILCORP\DGray </code></pre> <p>And the file writes to the folder.</p> <p>When I deploy that same code, I get a failing result:</p> <pre><code>Path one = \\wsbliwad\payroll\PaperlessPay Exists = False Path two = \\wsbliwad\\payroll\\PaperlessPay Exists = False Path one = \\\\wsbliwad\\payroll\\PaperlessPay Exists = False Host Name is WSBLIWAD AD User is ANVILCORP\dgray </code></pre> <p>No file is written.</p> <p>I've gone to the folder and explicitly granted write permissions to all the users in our group who need it, thinking perhaps it was a badly reported permissions issue. No such luck. </p> <p>One oddity I have noted is that the last line in my response.write gives me upper case letters for the domain user when I run it in the debugger, and lowercase when the code is deployed. I don't know that it should matter, but it does seem odd.</p> <p>Any ideas why the code can see the shared folder from my debugger, but not when deployed?</p> <p>For DJ KRAZE'S request below:</p> <pre><code>protected void btn_Export_Click(object sender, EventArgs e) { DateTime mCheckDate = DateTime.Parse(tb_CheckDate.Text); int mPeriod = Int32.Parse(tb_Period.Text); try { string checkDateFormat = "MM/dd/yyyy"; ReadOnlyCollection&lt;IDataRow&gt; dataRows = FlatFileExportWeb.PaperlessPay.GetPaperlessPayData(mPeriod.ToString(), mCheckDate.ToString(checkDateFormat)); if (dataRows == null) return; IDataFormat format = new SimpleDataFormat(dataRows); string filepath = ""; string machineName = System.Net.Dns.GetHostName(); if (machineName == "WSBLIWAD") { // This path does not work filepath = @"\\wsbliwad\d$\Payroll\PaperlessPay"; } else { // this path works when debugging filepath = @"\\wsbliwad\payroll\PaperlessPay"; } string filename = "PaperlessPay" + mCheckDate.ToString("MMddyyyy") + ".txt"; new FileGenerator(filepath, filename).BuildFile(format); Response.Write("&lt;br /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;Success!! The flat file has been written to " + filepath + @"\" + filename); } catch (Exception ex) { // Display any exceptions that may have been thrown. System.Web.HttpContext.Current.Response.Write(ex); } } </code></pre> <p>... and then...</p> <pre><code>// Absolute path with concatenated filename string mFilenameWithPath; /// &lt;summary&gt; /// Constructs a FileGenerator instance pointing to filepath\PaperlessPay\filename. /// Will delete pre-existing file at this location. /// &lt;/summary&gt; public FileGenerator(string filepath, string filename) { if (!Directory.Exists(filepath)) throw new DirectoryNotFoundException(filepath); mFilenameWithPath = filepath + @"\" + filename; if (File.Exists(mFilenameWithPath)) File.Delete(mFilenameWithPath); } /// &lt;summary&gt; /// Given an IDataFormat instance, BuildFile builds an output string. /// It will then write this output string to the file specified within /// the class, as passed into the constructor. /// &lt;/summary&gt; /// &lt;param name="format"&gt;&lt;/param&gt; public void BuildFile(IDataFormat format) { // Make sure the format exists if (format == null) return; // Collect output string, and // write the string to filepath. using (StreamWriter writer = File.CreateText(mFilenameWithPath)) writer.Write(format.Build()); } </code></pre>
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    1. COWhich user does IIS run as on your destination server?
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      1. USAdrian Wragg
    2. COwhen doing directory paths over network you need to utilize the `$` in your file path for example `\\servername\c$\FolderName` `Servername\DriveName\FolderName` home that makes sense if you are doing this via web application you should look at `MapServerPath`
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      1. USMethodMan
    3. CO@DJKRAZE Not for named shares, you don't; that's only for the administrative shares of C:, D:, etc. The '$' just means that it's hidden from anyone browsing.
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      1. USAdrian Wragg
 

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