public void SetImageAccepted(IFormInterface AForm)
{
FImageSource = (IImageSource)AForm;
if (FImageSource.Stream == null)
{
DataField.ClearValue();
}
else
{
using (DAE.Runtime.Data.Scalar LNewValue = new DAE.Runtime.Data.Scalar(Source.DataView.Process.ValueManager, Source.DataView.Process.DataTypes.SystemGraphic))
{
Stream LStream = LNewValue.OpenStream();
try
{
FImageSource.Stream.Position = 0;
StreamUtility.CopyStream(FImageSource.Stream, LStream);
}
finally
{
LStream.Close();
}
DataField.Value = LNewValue;
}
}
}
public Stream Read(string imageID)
{
string fileName = BuildFileName(imageID);
if (File.Exists(fileName))
return File.OpenRead(fileName);
else
{
FileStream fileStream = new FileStream(fileName, FileMode.CreateNew, FileAccess.ReadWrite);
try
{
object tempValue = _identifiers[imageID];
if (tempValue is String)
{
using (DAE.Runtime.Data.Scalar scalar = (DAE.Runtime.Data.Scalar)_session.Pipe.RequestDocument((string)tempValue))
StreamUtility.CopyStream(scalar.OpenStream(), fileStream);
}
else
((GetImageHandler)tempValue)(imageID, fileStream);
fileStream.Position = 0;
return fileStream;
}
catch
{
fileStream.Close();
if (File.Exists(fileName))
File.Delete(fileName);
throw;
}
}
}
private void InternalLoadFromFile()
{
if (String.IsNullOrEmpty(_fileName))
{
_fileName = PromptForLoadName();
}
using (FileStream fileStream = new FileStream(_fileName, FileMode.Open, FileAccess.Read))
{
if (fileStream.Length > _maximumContentLength)
{
throw new ControlsException(ControlsException.Codes.MaximumContentLengthExceeded, fileStream.Length, _maximumContentLength);
}
using (DAE.Runtime.Data.Scalar newValue = new DAE.Runtime.Data.Scalar(DataSet.Process.ValueManager, DataSet.Process.DataTypes.SystemBinary))
{
using (Stream stream = newValue.OpenStream())
StreamUtility.CopyStream(fileStream, stream);
DataField.Value = newValue;
}
}
}