/// <summary>
/// Converts the DICOM data element value to a string.
/// </summary>
/// <param name="valueRepresentation">The DICOM data element value type.</param>
/// <param name="value">The DICOM data element value.</param>
/// <returns>The DICOM data element value as a string.</returns>
private string ValueToString(DicomValueRepresentation valueRepresentation, object value)
{
switch (valueRepresentation)
{
case DicomValueRepresentation.DA:
DateTime dateTime = (DateTime)value;
return(dateTime.ToShortDateString());
case DicomValueRepresentation.UI:
DicomUid uid = (DicomUid)value;
return(uid.Value);
}
return(value.ToString());
}
/// <summary>
/// Handles the SelectedIndexChanged event of ValueRepresentationComboBox object.
/// </summary>
private void valueRepresentationComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
#if !REMOVE_DICOM_PLUGIN
if (valueRepresentationComboBox.SelectedItem == null)
{
return;
}
// get DICOM value type from combo-box
DicomValueRepresentation selectedValueRepresentation =
(DicomValueRepresentation)valueRepresentationComboBox.SelectedItem;
// reset the user interface
valueLabel.Visible = true;
valueLabel.Text = "Value";
valueTextBox.Visible = false;
valueTextBox.Text = string.Empty;
valueTextBox.MaxLength = int.MaxValue;
valueDatePicker.Visible = false;
valueDatePicker.Value = DateTime.Now;
valueTimePicker.Visible = false;
valueTimePicker.Value = DateTime.Now;
valueAgeComboBox.Visible = false;
valueAgeComboBox.SelectedIndex = 0;
valueAgeNumericUpDown.Visible = false;
valueAgeNumericUpDown.Value = 0;
// init the user interface
switch (selectedValueRepresentation)
{
// Age String
case DicomValueRepresentation.AS:
valueAgeNumericUpDown.Visible = true;
valueAgeComboBox.Visible = true;
break;
// Date
case DicomValueRepresentation.DA:
valueDatePicker.Visible = true;
break;
// Date Time
case DicomValueRepresentation.DT:
valueDatePicker.Visible = true;
valueTimePicker.Visible = true;
break;
// Sequence of Items
case DicomValueRepresentation.SQ:
valueLabel.Visible = false;
break;
// Time
case DicomValueRepresentation.TM:
valueTimePicker.Visible = true;
break;
default:
valueTextBox.Visible = true;
valueLabel.Text = "Enter string values (value per line)";
break;
}
#endif
}
/// <summary>
/// Handles the Click event of OkButton object.
/// </summary>
private void okButton_Click(object sender, EventArgs e)
{
#if !REMOVE_DICOM_PLUGIN
// group numer
ushort groupNumber = (ushort)groupNumberNumericUpDown.Value;
// element number
ushort elementNumber = (ushort)elementNumberNumericUpDown.Value;
// value type
DicomValueRepresentation selectedValueRepresentation =
(DicomValueRepresentation)valueRepresentationComboBox.SelectedItem;
// DataElement value
object value = null;
try
{
switch (selectedValueRepresentation)
{
// Unique Identifier(UID)
case DicomValueRepresentation.UI:
List <DicomUid> uidList = new List <DicomUid>();
foreach (string line in valueTextBox.Lines)
{
if (!string.IsNullOrEmpty(line))
{
DicomUid uid = new DicomUid(line);
uidList.Add(uid);
}
}
value = uidList.ToArray();
break;
// Age String
case DicomValueRepresentation.AS:
string ageString = valueAgeNumericUpDown.Value.ToString();
string selectedItem = valueAgeComboBox.SelectedItem.ToString();
value = ageString + selectedItem[0];
break;
// Date
case DicomValueRepresentation.DA:
value = valueDatePicker.Value;
break;
// Date Time
case DicomValueRepresentation.DT:
DateTime date = valueDatePicker.Value;
DateTime time = valueTimePicker.Value;
DateTime dateTime = new DateTime(
date.Year, date.Month, date.Day,
time.Hour, time.Minute, time.Second);
value = dateTime;
break;
// Sequence of Items
case DicomValueRepresentation.SQ:
break;
// Time
case DicomValueRepresentation.TM:
value = valueTimePicker.Value.Subtract(valueTimePicker.Value.Date);
break;
default:
value = valueTextBox.Lines;
break;
}
// if type of value is sequence
if (selectedValueRepresentation == DicomValueRepresentation.SQ)
{
DicomDataSetMetadata collectionMetadata = _metadata as DicomDataSetMetadata;
if (collectionMetadata != null)
{
// sequence does not contain value
collectionMetadata.AddChild(groupNumber, elementNumber, DicomValueRepresentation.SQ);
}
else
{
DicomFrameMetadata frameMetadata = _metadata as DicomFrameMetadata;
if (frameMetadata != null)
{
frameMetadata.AddChild(groupNumber, elementNumber, DicomValueRepresentation.SQ);
}
}
}
else
{
DicomDataSetMetadata collectionMetadata = _metadata as DicomDataSetMetadata;
if (collectionMetadata != null)
{
// sequence does not contain value
collectionMetadata.AddChild(groupNumber, elementNumber, selectedValueRepresentation, value);
}
else
{
DicomFrameMetadata frameMetadata = _metadata as DicomFrameMetadata;
if (frameMetadata != null)
{
frameMetadata.AddChild(groupNumber, elementNumber, selectedValueRepresentation, value);
}
}
}
DialogResult = DialogResult.OK;
}
catch (Exception exc)
{
MessageBox.Show(exc.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
#endif
}
/// <summary>
/// Handles the KeyPress event of ValueTextBox object.
/// </summary>
private void valueTextBox_KeyPress(object sender, KeyPressEventArgs e)
{
#if !REMOVE_DICOM_PLUGIN
// if a control character is pressed
if (char.IsControl(e.KeyChar))
{
return;
}
// get selected type of value
DicomValueRepresentation selectedValueRepresentation =
(DicomValueRepresentation)valueRepresentationComboBox.SelectedItem;
// indicates that a digit character key is pressed
bool isDigit = char.IsDigit(e.KeyChar);
// indicates that a letter character key is pressed
bool isLetter = char.IsLetter(e.KeyChar);
// indicates that a negative digit character key is pressed
bool isNegativeDigit = false;
if (e.KeyChar == CultureInfo.CurrentCulture.NumberFormat.NegativeSign[0])
{
isNegativeDigit = true;
}
// indicates that a decimal separator key is pressed
bool isDecimalSeparatorChar = false;
if (e.KeyChar == CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator[0])
{
isDecimalSeparatorChar = true;
}
switch (selectedValueRepresentation)
{
// Application Entity
case DicomValueRepresentation.AE:
if (!isDigit && !isLetter && e.KeyChar != '\\')
{
e.Handled = true;
}
break;
// Code String
case DicomValueRepresentation.CS:
if (!isDigit && !isLetter && e.KeyChar != '_' && e.KeyChar != ' ')
{
e.Handled = true;
}
break;
// Attribute Tag
case DicomValueRepresentation.AT:
// Unsigned Long
case DicomValueRepresentation.UL:
// Unsigned Short
case DicomValueRepresentation.US:
if (!isDigit)
{
e.Handled = true;
}
break;
// Integer String
case DicomValueRepresentation.IS:
// Signed Long
case DicomValueRepresentation.SL:
// Signed Short
case DicomValueRepresentation.SS:
if (!isDigit && !isNegativeDigit)
{
e.Handled = true;
}
break;
// DecimalString
case DicomValueRepresentation.DS:
// Floating PointSingle
case DicomValueRepresentation.FL:
// Floating Point Double
case DicomValueRepresentation.FD:
// Other Double String
case DicomValueRepresentation.OD:
// Other Float String
case DicomValueRepresentation.OF:
if (!isDigit && !isNegativeDigit && !isDecimalSeparatorChar)
{
e.Handled = true;
}
break;
// Unique Identifier(UID)
case DicomValueRepresentation.UI:
if (!isDigit && e.KeyChar != '.')
{
e.Handled = true;
}
break;
}
#endif
}
