private void AddNewRow()
{
//MessageBox.Show("AddNewRow"); //20130730,SKK
if (xref == null)
{
return;
}
//add a new shared memory variable at the end of the list
xref.GetSharedMemoryManager().AddNewShmVarWithDefaultValue();
//first set focus
ShmVarDataGrid.Focus();
//select the last element of the list
ShmVarDataGrid.SelectedItem = ListOfShmVariables.Last();
//then create a new cell info, with the item we wish to edit and the column number of the cell we want in edit mode
DataGridCellInfo cellInfo = new DataGridCellInfo(ShmVarDataGrid.SelectedItem, ShmVarDataGrid.Columns[0]);
//set the cell to be the active one
ShmVarDataGrid.CurrentCell = cellInfo;
//scroll the item into view
ShmVarDataGrid.ScrollIntoView(ShmVarDataGrid.SelectedItem);
//begin the edit
ShmVarDataGrid.BeginEdit();
}
private void DeleteSelectedRows()
{
if (xref == null)
{
return;
}
if (ShmVarDataGrid.SelectedItems.Count > 0 && MessageBox.Show("Do you really want to delete all selected variables?", "ViGET V2.0", MessageBoxButton.YesNo, MessageBoxImage.Question) != MessageBoxResult.Yes)
{
return;
}
foreach (var item in ShmVarDataGrid.SelectedItems)
{
SharedMemoryVariable shmVar = item as SharedMemoryVariable;
if (shmVar.ConnectionCounter > 0)
{
MessageBox.Show("At least one of the selected variables can not be deleted, because it is connected.\n\nNone of the selected variables will be deleted.", "Delete Not Possible");
return;
}
}
int indexOfLastDeletedRow = -1;
//remove all selected rows(shared memory variables)
while (ShmVarDataGrid.SelectedItems.Count > 0)
{
indexOfLastDeletedRow = ShmVarDataGrid.SelectedIndex;
xref.GetSharedMemoryManager().RemoveShmVar((ShmVarDataGrid.SelectedItem as SharedMemoryVariable).Name);
}
//first set focus
ShmVarDataGrid.Focus();
//set selected either the last row or the row below last deleted row
ShmVarDataGrid.SelectedIndex = Math.Min(indexOfLastDeletedRow, ListOfShmVariables.Count - 1);
//make the selected item visible
if (ShmVarDataGrid.SelectedItem != null)
{
//then create a new cell info, with the item we wish to edit and the column number of the cell we want in edit mode
DataGridCellInfo cellInfo = new DataGridCellInfo(ShmVarDataGrid.SelectedItem, ShmVarDataGrid.Columns[0]);
//set the cell to be the active one
ShmVarDataGrid.CurrentCell = cellInfo;
//scroll the item into view
ShmVarDataGrid.ScrollIntoView(ShmVarDataGrid.SelectedItem);
}
}