/// <summary>
/// Kopiuje pojedynczą komórkę do schowka.
/// </summary>
public void CopyCellContentToClipboard()
{
DataGridCellInfo cellInfo;
DataGridColumn currentColumn = null;
object currentItem = null;
string format = DataFormats.UnicodeText;
if (this.CurrentCell != null)
{
cellInfo = this.CurrentCell;
}
else if (this.SelectedCells.Count > 0)
{
cellInfo = this.SelectedCells[0];
}
currentColumn = cellInfo.Column;
if (currentColumn == null)
{
if (this.CurrentCell != null && this.CurrentCell.Column != null)
{
currentColumn = this.CurrentCell.Column;
}
else if (this.SelectedCells.Count > 0)
{
currentColumn = this.SelectedCells[0].Column;
}
}
if (currentColumn == null)
{
return;
}
if (cellInfo.Item != null)
{
currentItem = cellInfo.Item;
}
else if (this.CurrentItem != null)
{
currentItem = this.CurrentItem;
}
else if (this.SelectedCells.Count > 0 && this.SelectedCells[0].Item != null)
{
currentItem = this.SelectedCells[0].Item;
}
if (currentItem == null)
{
return;
}
var value = currentColumn.OnCopyingCellClipboardContent(currentItem);
if (value == null || value == DBNull.Value)
{
value = "";
}
StringBuilder sb = new StringBuilder();
DataGridBoldClipboardHelper.FormatPlainText(value, sb, format);
DataObject dataObject;
bool hasPerms = SecurityHelper.CallerHasAllClipboardPermission() && SecurityHelper.CallerHasSerializationPermission();
// Copy unconditionally in full trust.
// Only copy in partial trust if user initiated.
if (hasPerms)
{
(new UIPermission(UIPermissionClipboard.AllClipboard)).Assert();
try
{
dataObject = new DataObject();
}
finally
{
UIPermission.RevertAssert();
}
dataObject.SetData(format, sb.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
{
if (dataObject != null)
{
Clipboard.SetDataObject(dataObject, true /* Copy */);
}
}
finally
{
SecurityPermission.RevertAll();
}
}
}
private void OnExecutedCopyInternal(ExecutedRoutedEventArgs args)
{
if (ClipboardCopyMode == DataGridClipboardCopyMode.None)
{
throw new NotSupportedException("Cannot perform copy if ClipboardCopyMode is None.");
}
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 (this.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 (this.SelectedCellsIntersects(i))
{
DataGridRowClipboardEventArgs preparingRowClipboardContentEventArgs = (DataGridRowClipboardEventArgs)CONSTRUCTORINFO_DATAGRIDROWCLIPBOARDEVENTARGS.Invoke(
new object[] { row, minColumnDisplayIndex, maxColumnDisplayIndex, false /*IsColumnHeadersRow*/, i });
OnCopyingRowClipboardContent(preparingRowClipboardContentEventArgs);
foreach (string format in formats)
{
dataGridStringBuilders[format].Append(preparingRowClipboardContentEventArgs.FormatClipboardCellValues(format));
}
}
}
}
DataGridBoldClipboardHelper.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.GetUserInitiated())
{
(new UIPermission(UIPermissionClipboard.AllClipboard)).Assert();
try
{
dataObject = new DataObject();
}
finally
{
UIPermission.RevertAssert();
}
foreach (string format in formats)
{
if (dataGridStringBuilders[format] != null)
{
dataObject.SetData(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
{
if (dataObject != null)
{
Clipboard.SetDataObject(dataObject, true /* Copy */);
}
}
finally
{
SecurityPermission.RevertAll();
}
}
}