OK What I am trying to do is display the message in my custom validator that a file was not selected only if the user select an update button with out selecting the file.

This is what's happening:

1. Curently the update link can add a new file or modify an existing file. view state is used to see if a file already exists or not:

private int _fileId
          {
               get
               {
                    if ( ViewState[ "FileId" ] != null )
                         return Convert.ToInt32( ViewState[ "FileId" ] );
                    else
                         return 0;
               }
               set { ViewState[ "FileId"] = value; }
          }


2. When the user clicks the file update button this is what gets processed.:

private void Update_Click(object sender, System.EventArgs e)
{

     OnlineCaseFileInfo file = new OnlineCaseFileInfo();
     OnlineCaseFileController controller = new OnlineCaseFileController();

     file.CaseId = _caseId;
     file.FileDescription = FileDescription.Text;

     // New File Browse button visible for editing a file
     HttpPostedFile pFile = NewFileName.PostedFile;
     byte[] fileData = new byte[pFile.ContentLength];
     pFile.InputStream.Read( fileData, 0, pFile.ContentLength );
     file.FileId = FileHandler.SaveFile( _caseId, fileData, pFile.FileName );
     file.FileName = FileHandler.GetShortFileName( pFile.FileName );

     if (!Page.IsValid) // Now this code will call the validate function
               return;




                    if ( _fileId == 0 )



                    {
                         // Add file if file id is 0
                         controller.Add( file );
                    }

                    else // update file if file exists

                    {

                         file.FileId = _fileId;
                         controller.Update( file );

                    }

                    controller = null;


3. This function gets called:


          public void WrongeFileUpdate_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
          {
               // Display wrong file message if not correct file is selected

               if ( _fileId != 0 )
               {
                    //Make sure the file name is from the correct path, only file name should be compared
                    _filename = FileHandler.GetShortFileName(_filename); //FileHandler GetShortFile name retreives only the file name
                    // New File Browse button visible for editing a file
                    OnlineCaseFileInfo file = new OnlineCaseFileInfo();
                    OnlineCaseFileController controller = new OnlineCaseFileController();



                    file.CaseId = _caseId;
                    file.FileDescription = FileDescription.Text;


                    // New File Browse button visible for editing a file
                    HttpPostedFile pFile = NewFileName.PostedFile;
                    byte[] fileData = new byte[pFile.ContentLength];
                    pFile.InputStream.Read( fileData, 0, pFile.ContentLength );
                    file.FileId = FileHandler.SaveFile( _caseId, fileData, pFile.FileName );
                    file.FileName = FileHandler.GetShortFileName( pFile.FileName );

                    string newfilename = file.FileName = FileHandler.GetShortFileName( pFile.FileName );
                    newfilename = FileHandler.GetShortFileName(newfilename);

                    if( _filename != newfilename )

                    {

                         WrongeFileUpdate.Text = "Wrong File Being Updated";
                         args.IsValid = false;
                    }

               }

               if ( _fileId == 0)
               {
                    if (this.NewFileName.Value == "")
                    {
                    WrongeFileUpdate.Text = "No File Selected. Please select a file."; // So the code does reach here when I step through it.
                                                                args.IsValid = false;
                    }
               }

4. However after it finishes executing this function. It displays this error message:

A critical error has occurred.
Could not find a part of the path "C:\DNNmyAANS\Portals\0\onlinecase\5\".


Sanjeet

__________________
Sanjeet