[sanjeet]

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\".