private void FillClipboardRowContent(DataGridRowClipboardEventArgs args)
{
if (args.IsColumnHeadersRow)
{
for (int i = args.StartColumnDisplayIndex; i <= args.EndColumnDisplayIndex; i++)
{
DataGridColumn column = ColumnFromDisplayIndex(i);
if (!(column.Visibility == Visibility.Visible))
{
continue;
}
args.ClipboardRowContent.Add(new DataGridClipboardCellContent(args.Item, column, column.Header));
}
}
else
{
int rowIndex = args.GetRowIndexHint();
if (rowIndex < 0)
{
rowIndex = Items.IndexOf(args.Item);
}
// If row has selection
if (this.SelectedCellsIntersects(rowIndex))
{
for (int i = args.StartColumnDisplayIndex; i <= args.EndColumnDisplayIndex; i++)
{
DataGridColumn column = ColumnFromDisplayIndex(i);
if (!(column.Visibility == Visibility.Visible))
{
continue;
}
object cellValue = null;
// Get cell value only if the cell is selected - otherwise leave it null
if (this.SelectedCellsContains(rowIndex, i))
{
cellValue = column.OnCopyingCellClipboardContent(args.Item);
}
args.ClipboardRowContent.Add(new DataGridClipboardCellContent(args.Item, column, cellValue));
}
}
}
}
private static string GetColumnText(DataGridColumn column, object dataContext)
{
Contract.Requires(column != null);
Contract.Requires(dataContext != null);
try
{
if (column.Visibility != Visibility.Visible)
{
return(null);
}
return(column.OnCopyingCellClipboardContent(dataContext) as string);
}
catch
{
return(null);
}
}
/// <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();
}
}
}