private void SearchTextBox_KeyUp(object sender, KeyEventArgs e)
{
if (timer.IsEnabled)
{
//stop timer for "no matches" message immediately
Timer_Tick(null, null);
}
if (e == null || e.Key == Key.Return || e.Key == Key.F3)
{
ShmVarDataGrid.UnselectAll();
int i = 0;
for (i = startIndx; i < ShmVarDataGrid.Items.Count; i++)
{
SharedMemoryVariable currentVar = ShmVarDataGrid.Items[i] as SharedMemoryVariable;
if (currentVar.Name.ToUpper().IndexOf(searchTextBox.Text.ToUpper()) == 0)
{
ShmVarDataGrid.SelectedItem = ShmVarDataGrid.Items[i];
startIndx = i + 1;
ShmVarDataGrid.ScrollIntoView(ShmVarDataGrid.SelectedItem);
break;
}
}
if (i == ShmVarDataGrid.Items.Count)
{
//not found
startIndx = 0;
borderFindNoMatches.Visibility = Visibility.Visible; //instead of a message box, show a hint in the search area
timer.Start(); //start timer to hide the hint after a short time
searchTextBox.Focus();
}
}
}
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);
}
}
