private void button_OutPic_Click(object sender, EventArgs e) { SaveFileDialog vSaveFileDialog = new SaveFileDialog(); vSaveFileDialog.Filter = "Image Files(*.JPG)|*.JPG|All files (*.*)|*.*"; if (vSaveFileDialog.ShowDialog() == DialogResult.OK) { if (vSaveFileDialog.FileName != "") { Main_Form.OutPic(vSaveFileDialog.FileName); } } }