Hi Jeronimo,

When we bind a data source to a property of a control, we add a Binding
object to the DataBindings property of the control. There's an event called
Format in the binding object, which occurs when the property of a control
is bound to a data value.

We could subscribe and handle this event to store the image in the
picturebox in JPG format.

The following is a sample on how to subscribe and handle the Format event
of the binding object.

public Form1()
  {
    this.pictureBox1.DataBindings[0].Format += new
ConvertEventHandler(Form1_Format);
  }

void Form1_Format(object sender, ConvertEventArgs e)
  {
       // add the code to store the image in picturebox in JPG format
          .....
   }

Hope this helps.
If you have anything unclear, please feel free to let me know.

Sincerely,
Linda Liu
Microsoft Online Community Support

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Hi Jeronimo,

How about the problem now?

If the problem is not solved or you need our further assistance, please
feel free to let me know.

Thank you for using our MSDN Managed Newsgroup Support Service!

Sincerely,
Linda Liu
Microsoft Online Community Support