protected virtual void OnExecutedCopy(ExecutedRoutedEventArgs args)
{
if (ClipboardCopyMode == DataGridClipboardCopyMode.None)
{
throw new NotSupportedException(SR.Get(SRID.ClipboardCopyMode_Disabled));
}
args.Handled = true;
// Supported default formats: Html, Text, UnicodeText and CSV
Collection<string> formats = new Collection<string>(new string[] { DataFormats.Html, DataFormats.Text, DataFormats.UnicodeText, DataFormats.CommaSeparatedValue });
Dictionary<string, StringBuilder> dataGridStringBuilders = new Dictionary<string, StringBuilder>(formats.Count);
foreach (string format in formats)
{
dataGridStringBuilders[format] = new StringBuilder();
}
int minRowIndex;
int maxRowIndex;
int minColumnDisplayIndex;
int maxColumnDisplayIndex;
// Get the bounding box of the selected cells
if (_selectedCells.GetSelectionRange(out minColumnDisplayIndex, out maxColumnDisplayIndex, out minRowIndex, out maxRowIndex))
{
// Add column headers if enabled
if (ClipboardCopyMode == DataGridClipboardCopyMode.IncludeHeader)
{
DataGridRowClipboardEventArgs preparingRowClipboardContentEventArgs = new DataGridRowClipboardEventArgs(null, minColumnDisplayIndex, maxColumnDisplayIndex, true /*IsColumnHeadersRow*/);
OnCopyingRowClipboardContent(preparingRowClipboardContentEventArgs);
foreach (string format in formats)
{
dataGridStringBuilders[format].Append(preparingRowClipboardContentEventArgs.FormatClipboardCellValues(format));
}
}
// Add each selected row
for (int i = minRowIndex; i <= maxRowIndex; i++)
{
object row = Items[i];
// Row has a selecion
if (_selectedCells.Intersects(i))
{
DataGridRowClipboardEventArgs preparingRowClipboardContentEventArgs = new DataGridRowClipboardEventArgs(row, minColumnDisplayIndex, maxColumnDisplayIndex, false /*IsColumnHeadersRow*/, i);
OnCopyingRowClipboardContent(preparingRowClipboardContentEventArgs);
foreach (string format in formats)
{
dataGridStringBuilders[format].Append(preparingRowClipboardContentEventArgs.FormatClipboardCellValues(format));
}
}
}
}
DataGridClipboardHelper.GetClipboardContentForHtml(dataGridStringBuilders[DataFormats.Html]);
DataObject dataObject;
bool hasPerms = SecurityHelper.CallerHasAllClipboardPermission() && SecurityHelper.CallerHasSerializationPermission();
// Copy unconditionally in full trust.
// Only copy in partial trust if user initiated.
if (hasPerms || args.UserInitiated )
{
(new UIPermission(UIPermissionClipboard.AllClipboard)).Assert();
try
{
dataObject = new DataObject();
}
finally
{
UIPermission.RevertAssert();
}
foreach (string format in formats)
{
dataObject.CriticalSetData(format, dataGridStringBuilders[format].ToString(), false /*autoConvert*/);
}
// This assert is there for an OLE Callback to register CSV type for the clipboard
(new SecurityPermission(SecurityPermissionFlag.SerializationFormatter | SecurityPermissionFlag.UnmanagedCode)).Assert();
try
{
Clipboard.CriticalSetDataObject(dataObject, true /* Copy */);
}
finally
{
SecurityPermission.RevertAll();
}
}
}