private DataGridViewSelectedColumnCollection selected_columns;
private DataGridViewRow editing_row;
- private int gridWidth;
- private int gridHeight;
-
DataGridViewHeaderCell pressed_header_cell;
DataGridViewHeaderCell entered_header_cell;
selectionMode = DataGridViewSelectionMode.RowHeaderSelect;
showCellErrors = true;
showEditingIcon = true;
+ scrollBars = ScrollBars.Both;
userSetCursor = Cursor.Current;
virtualMode = false;
set {
if (allowUserToAddRows != value) {
allowUserToAddRows = value;
+ if (!value) {
+ if (new_row_editing)
+ CancelEdit ();
+ RemoveEditingRow ();
+ } else {
+ PrepareEditingRow (false, false);
+ }
OnAllowUserToAddRowsChanged(EventArgs.Empty);
- PrepareEditingRow (false, false);
Invalidate ();
}
}
throw new InvalidOperationException("Cant change column count if DataSource is set.");
}
if (value < columns.Count) {
- for (int i = value; i < columns.Count; i++) {
+ for (int i = columns.Count -1; i >= value; i--) {
columns.RemoveAt(i);
}
}
else if (value > columns.Count) {
- for (int i = 0; i < value; i++) {
+ for (int i = columns.Count; i < value; i++) {
DataGridViewTextBoxColumn col = new DataGridViewTextBoxColumn ();
columns.Add(col);
}
/// to the data cache, or the new cell is in a hidden
/// row.
/////////////////////////////////////////////////////
- if (value.DataGridView != this)
+ if (value == null)
+ MoveCurrentCell (-1, -1, true, false, false, true);
+ else if (value.DataGridView != this)
throw new ArgumentException("The cell is not in this DataGridView.");
-
- if (value != null)
- MoveCurrentCell (value.OwningColumn.Index, value.OwningRow.Index, true, false, false, true);
else
- MoveCurrentCell (-1, -1, true, false, false, true);
+ MoveCurrentCell (value.OwningColumn.Index, value.OwningRow.Index, true, false, false, true);
}
}
set {
if (dataMember != value) {
dataMember = value;
- ReBind ();
+ if (BindingContext != null)
+ ReBind ();
OnDataMemberChanged(EventArgs.Empty);
}
}
if (!(value == null || value is IList || value is IListSource || value is IBindingList || value is IBindingListView))
throw new NotSupportedException ("Type cannot be bound.");
+ ClearBinding ();
dataSource = value;
- ReBind ();
+ if (BindingContext != null)
+ ReBind ();
OnDataSourceChanged (EventArgs.Empty);
}
}
if (dataSource != null) {
throw new InvalidOperationException("Cant change row count if DataSource is set.");
}
+
if (value < rows.Count) {
- for (int i = value; i < rows.Count; i++) {
+ int removeRangeEndIndex = rows.Count - 1;
+ if (AllowUserToAddRows)
+ removeRangeEndIndex--; // do not remove editing row
+
+ int removeRangeStartIndex = value - 1;
+ if (AllowUserToAddRows)
+ removeRangeStartIndex--; // remove an extra row before/instead of the editing row
+
+ for (int i = removeRangeEndIndex; i > removeRangeStartIndex; i--)
rows.RemoveAt(i);
- }
- }
- else if (value > rows.Count) {
+ } else if (value > rows.Count) {
// If we need to add rows and don't have any columns,
// we create one column
if (ColumnCount == 0)
/// or canceled.
///////////////////////////////////////////////////////////
scrollBars = value;
+ PerformLayout ();
+ Invalidate ();
}
}
return topLeftHeaderCell;
}
set {
+ if (topLeftHeaderCell == value)
+ return;
+
+ if (topLeftHeaderCell != null)
+ topLeftHeaderCell.SetDataGridView (null);
+
topLeftHeaderCell = value;
- topLeftHeaderCell.SetDataGridView (this);
+
+ if (topLeftHeaderCell != null)
+ topLeftHeaderCell.SetDataGridView (this);
}
}
if (ColumnHeadersVisible)
rowTop += ColumnHeadersHeight;
+ Size visibleClientArea = ClientSize;
+ if (verticalScrollBar.Visible)
+ visibleClientArea.Width -= verticalScrollBar.Width;
+ if (horizontalScrollBar.Visible)
+ visibleClientArea.Height -= horizontalScrollBar.Height;
+
for (int index = first_row_index; index < Rows.Count; index++) {
DataGridViewRow row = GetRowInternal (index);
- if (rowTop + row.Height <= ClientSize.Height) {
+ if (rowTop + row.Height <= visibleClientArea.Height) {
result++;
rowTop += row.Height;
} else {
}
for (int i = first_row_index; i < Rows.Count; i++) {
- if (i == rowIndex) {
+ if (!rows[i].Visible)
+ continue;
+
+ if (rows[i].Index == rowIndex) {
h = rows [i].Height;
break;
}
if (ColumnHeadersVisible)
y += ColumnHeadersHeight;
+
for (int i = first_row_index; i < Rows.Count; i++) {
- if (i == rowIndex) {
- h = rows[i].Height;
+ if (!rows[i].Visible)
+ continue;
+
+ if (rows[i].Index == rowIndex) {
+ h = rows [i].Height;
break;
}
-
- y += rows[i].Height;
+
+ y += rows [i].Height;
}
return new Rectangle (0, y, Width, h);
for (int i = first_row_index; i < Rows.Count; i++) {
DataGridViewRow row = Rows[i];
+ if (!row.Visible)
+ continue;
if (y > top && y <= (top + row.Height)) {
rowindex = i;
}
foreach (DataGridViewRow row in Rows) {
+ if (!row.Visible)
+ continue;
if (!displayed_only || row.Displayed) {
int new_height = row.GetPreferredHeight (row.Index, mode, fixedWidth);
protected virtual void OnCellEnter (DataGridViewCellEventArgs e)
{
+ DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
+ cell.OnEnterInternal (e.RowIndex, true);
+
DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellEnterEvent]);
if (eh != null)
eh (this, e);
protected virtual void OnCellLeave (DataGridViewCellEventArgs e)
{
+ DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
+ cell.OnLeaveInternal (e.RowIndex, true);
+
DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellLeaveEvent]);
if (eh != null)
eh (this, e);
//
if (!is_autogenerating_columns && columns.Count == 1)
ReBind ();
-
foreach (DataGridViewRow row in Rows)
row.Cells.Add ((DataGridViewCell)e.Column.CellTemplate.Clone ());
}
eh (this, e);
}
- internal void OnColumnRemovedInternal (DataGridViewColumnEventArgs e)
+ internal void OnColumnPreRemovedInternal (DataGridViewColumnEventArgs e)
+ {
+ if (Columns.Count - 1 == 0) {
+ MoveCurrentCell (-1, -1, true, false, false, true);
+ rows.ClearInternal ();
+ } else if (currentCell != null && CurrentCell.ColumnIndex == e.Column.Index) {
+ int nextColumnIndex = e.Column.Index;
+ if (nextColumnIndex >= Columns.Count - 1)
+ nextColumnIndex = Columns.Count - 1 - 1;
+ MoveCurrentCell (nextColumnIndex, currentCell.RowIndex, true, false, false, true);
+ if (hover_cell != null && hover_cell.ColumnIndex >= e.Column.Index)
+ hover_cell = null;
+ }
+ }
+
+ private void OnColumnPostRemovedInternal (DataGridViewColumnEventArgs e)
{
if (e.Column.CellTemplate != null) {
int index = e.Column.Index;
}
AutoResizeColumnsInternal ();
- OnColumnRemoved (e);
PrepareEditingRow (false, true);
+
+ OnColumnRemoved (e);
}
protected virtual void OnColumnRemoved (DataGridViewColumnEventArgs e)
protected override void OnHandleCreated (EventArgs e)
{
base.OnHandleCreated(e);
+ ReBind ();
if (CurrentCell == null && Rows.Count > 0 && Columns.Count > 0)
MoveCurrentCell (ColumnDisplayIndexToIndex (0), 0, true, false, false, false);
protected override void OnMouseDoubleClick (MouseEventArgs e)
{
base.OnMouseDoubleClick(e);
+
+ HitTestInfo hitInfo = HitTest (e.X, e.Y);
+ if (hitInfo.Type == DataGridViewHitTestType.Cell)
+ OnCellMouseDoubleClick (new DataGridViewCellMouseEventArgs (hitInfo.ColumnIndex, hitInfo.RowIndex,
+ hitInfo.ColumnX, hitInfo.RowY, e));
}
private void DoSelectionOnMouseDown (HitTestInfo hitTest)
protected override void OnMouseWheel (MouseEventArgs e)
{
base.OnMouseWheel(e);
+
+ int delta = SystemInformation.MouseWheelScrollLines * verticalScrollBar.SmallChange;
+ if (e.Delta < 0)
+ verticalScrollBar.SafeValueSet (verticalScrollBar.Value + delta);
+ else
+ verticalScrollBar.SafeValueSet (verticalScrollBar.Value - delta);
+
+ OnVScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, verticalScrollBar.Value));
}
protected virtual void OnMultiSelectChanged (EventArgs e)
bounds.Y += columnHeadersHeight;
}
- gridWidth = rowHeadersVisible ? rowHeadersWidth : 0;
- gridHeight = 0;
-
- int first_row_height = Rows.Count > 0 ? Rows[Math.Min (Rows.Count - 1, first_row_index)].Height : 0;
-// int room_left = this.Height;
-
- // Reset all columns to !Displayed
- for (int i = 0; i < Columns.Count; i++)
+ // Reset not displayed columns to !Displayed
+ for (int i = 0; i < first_col_index; i++)
Columns[i].DisplayedInternal = false;
+ int gridWidth = rowHeadersVisible ? rowHeadersWidth : 0;
+
// Set Displayed columns
for (int i = first_col_index; i < Columns.Count; i++) {
DataGridViewColumn col = Columns.ColumnDisplayIndexSortedArrayList[i];
col.DisplayedInternal = true;
gridWidth += col.Width;
-
if (gridWidth >= Width)
break;
}
- // Reset all rows to !Displayed
- for (int i = 0; i < Rows.Count; i++)
+ // Reset all not displayed rows to !Displayed
+ for (int i = 0; i < first_row_index; i++)
GetRowInternal (i).DisplayedInternal = false;
// Draw rows
for (int index = first_row_index; index < Rows.Count; index++) {
DataGridViewRow row = Rows[index];
+ if (!row.Visible)
+ continue;
GetRowInternal (index).DisplayedInternal = true;
bounds.Height = row.Height;
if (bounds.Y >= ClientSize.Height - (horizontalScrollBar.Visible ? horizontalScrollBar.Height : 0))
break;
-
- gridHeight += row.Height;
}
- gridWidth = 0;
+ RefreshScrollBars ();
- foreach (DataGridViewColumn col in sortedColumns)
+ // Paint the bottom right square if both scrollbars are displayed
+ if (horizontalScrollBar.Visible && verticalScrollBar.Visible)
+ g.FillRectangle (SystemBrushes.Control, new Rectangle (horizontalScrollBar.Right, verticalScrollBar.Bottom, verticalScrollBar.Width, horizontalScrollBar.Height));
+
+ // Paint the border
+ bounds = ClientRectangle;
+
+ switch (BorderStyle) {
+ case BorderStyle.FixedSingle:
+ g.DrawRectangle (Pens.Black, new Rectangle (bounds.Left, bounds.Top, bounds.Width - 1, bounds.Height - 1));
+ break;
+ case BorderStyle.Fixed3D:
+ ControlPaint.DrawBorder3D (g, bounds, Border3DStyle.Sunken);
+ break;
+ }
+ }
+
+ private void RefreshScrollBars ()
+ {
+ int gridWidth = 0;
+ int gridHeight = 0;
+
+ foreach (DataGridViewColumn col in columns.ColumnDisplayIndexSortedArrayList)
if (col.Visible)
gridWidth += col.Width;
-
- gridHeight = 0;
foreach (DataGridViewRow row in Rows)
- gridHeight += row.Height;
+ if (row.Visible)
+ gridHeight += row.Height;
if (rowHeadersVisible)
gridWidth += rowHeadersWidth;
-
if (columnHeadersVisible)
gridHeight += columnHeadersHeight;
-
+
bool horizontalVisible = false;
bool verticalVisible = false;
if (AutoSize) {
- if (gridWidth > Size.Width || gridHeight > Size.Height) {
+ if (gridWidth > Size.Width || gridHeight > Size.Height)
Size = new Size(gridWidth, gridHeight);
- }
}
else {
- if (gridWidth > Size.Width) {
+ if (gridWidth > Size.Width)
horizontalVisible = true;
- }
- if (gridHeight > Size.Height) {
+ if (gridHeight > Size.Height)
verticalVisible = true;
- }
- if (horizontalScrollBar.Visible && (gridHeight + horizontalScrollBar.Height) > Size.Height) {
+
+ if (horizontalScrollBar.Visible && (gridHeight + horizontalScrollBar.Height) > Size.Height)
verticalVisible = true;
- }
- if (verticalScrollBar.Visible && (gridWidth + verticalScrollBar.Width) > Size.Width) {
+ if (verticalScrollBar.Visible && (gridWidth + verticalScrollBar.Width) > Size.Width)
horizontalVisible = true;
- }
+
+ if (scrollBars != ScrollBars.Vertical && scrollBars != ScrollBars.Both)
+ verticalVisible = false;
+ if (scrollBars != ScrollBars.Horizontal && scrollBars != ScrollBars.Both)
+ horizontalVisible = false;
+
if (horizontalVisible) {
horizontalScrollBar.Minimum = 0;
horizontalScrollBar.Maximum = gridWidth;
horizontalScrollBar.SmallChange = Columns[first_col_index].Width;
- int largeChange = ClientSize.Width - rowHeadersWidth;
+ int largeChange = ClientSize.Width - rowHeadersWidth - horizontalScrollBar.Height;
if (largeChange <= 0)
largeChange = ClientSize.Width;
horizontalScrollBar.LargeChange = largeChange;
}
+
if (verticalVisible) {
verticalScrollBar.Minimum = 0;
verticalScrollBar.Maximum = gridHeight;
+ int first_row_height = Rows.Count > 0 ? Rows[Math.Min (Rows.Count - 1, first_row_index)].Height : 0;
verticalScrollBar.SmallChange = first_row_height + 1;
- int largeChange = ClientSize.Height - columnHeadersHeight;
+ int largeChange = ClientSize.Height - columnHeadersHeight - verticalScrollBar.Width;
if (largeChange <= 0)
largeChange = ClientSize.Height;
verticalScrollBar.LargeChange = largeChange;
horizontalScrollBar.Visible = horizontalVisible;
verticalScrollBar.Visible = verticalVisible;
-
- // Paint the bottom right square if both scrollbars are displayed
- if (horizontalScrollBar.Visible && verticalScrollBar.Visible)
- g.FillRectangle (SystemBrushes.Control, new Rectangle (horizontalScrollBar.Right, verticalScrollBar.Bottom, verticalScrollBar.Width, horizontalScrollBar.Height));
-
- // Paint the border
- bounds = ClientRectangle;
-
- switch (BorderStyle) {
- case BorderStyle.FixedSingle:
- g.DrawRectangle (Pens.Black, new Rectangle (bounds.Left, bounds.Top, bounds.Width - 1, bounds.Height - 1));
- break;
- case BorderStyle.Fixed3D:
- ControlPaint.DrawBorder3D (g, bounds, Border3DStyle.Sunken);
- break;
- }
}
protected virtual void OnReadOnlyChanged (EventArgs e) {
internal void OnRowsAddedInternal (DataGridViewRowsAddedEventArgs e)
{
- // if the very first row has just been added
- if (Rows.Count == 1 && Columns.Count > 0)
- MoveCurrentCell (0, 0, true, false, false, true);
+ if (hover_cell != null && hover_cell.RowIndex >= e.RowIndex)
+ hover_cell = null;
+
AutoResizeColumnsInternal ();
Invalidate ();
OnRowsAdded (e);
}
- protected internal virtual void OnRowsAdded (DataGridViewRowsAddedEventArgs e)
+ protected virtual void OnRowsAdded (DataGridViewRowsAddedEventArgs e)
{
DataGridViewRowsAddedEventHandler eh = (DataGridViewRowsAddedEventHandler)(Events [RowsAddedEvent]);
if (eh != null) eh (this, e);
if (eh != null) eh (this, e);
}
- internal void OnRowsRemovedInternal (DataGridViewRowsRemovedEventArgs e)
+ internal void OnRowsPreRemovedInternal (DataGridViewRowsRemovedEventArgs e)
{
if (selected_rows != null)
selected_rows.InternalClear ();
if (selected_columns != null)
selected_columns.InternalClear ();
- if (Rows.Count == 0) {
+ if (Rows.Count - e.RowCount <= 0) {
MoveCurrentCell (-1, -1, true, false, false, true);
+ hover_cell = null;
} else if (Columns.Count == 0) {
MoveCurrentCell (-1, -1, true, false, false, true);
- } else {
+ hover_cell = null;
+ } else if (currentCell != null && currentCell.RowIndex == e.RowIndex) {
int nextRowIndex = e.RowIndex;
- if (nextRowIndex >= Rows.Count)
- nextRowIndex = Rows.Count - 1;
+ if (nextRowIndex >= Rows.Count - e.RowCount)
+ nextRowIndex = Rows.Count - 1 - e.RowCount;
MoveCurrentCell (currentCell != null ? currentCell.ColumnIndex : 0, nextRowIndex,
true, false, false, true);
+ if (hover_cell != null && hover_cell.RowIndex >= e.RowIndex)
+ hover_cell = null;
}
+ }
+ internal void OnRowsPostRemovedInternal (DataGridViewRowsRemovedEventArgs e)
+ {
Invalidate ();
OnRowsRemoved (e);
}
protected bool ProcessDeleteKey (Keys keyData)
{
- if (!allowUserToDeleteRows || SelectedRows.Count == 0)
+ if (!AllowUserToDeleteRows || SelectedRows.Count == 0)
return false;
int index = Math.Max (selected_row - SelectedRows.Count + 1, 0);
if (hover_cell != null && hover_cell.OwningRow == row)
hover_cell = null;
- if (DataSource != null && DataSource is DataSet)
- (DataSource as DataSet).Tables[dataMember].Rows.RemoveAt (row.Index);
+ if (DataManager != null)
+ DataManager.RemoveAt (row.Index);
else
Rows.RemoveAt (row.Index);
}
return;
int top = 0;
-
+ int lastTopVisibleRowIndex = Rows.Count - DisplayedRowCount (false);
+
for (int index = 0; index < Rows.Count; index++) {
DataGridViewRow row = Rows[index];
- if (e.NewValue < top + row.Height) {
+ if (!row.Visible)
+ continue;
+
+ if (row.Index >= lastTopVisibleRowIndex) {
+ first_row_index = lastTopVisibleRowIndex;
+ } else if (e.NewValue < top + row.Height) {
if (first_row_index != index) {
first_row_index = index;
Invalidate ();
top += row.Height;
}
- first_row_index = Rows.Count - DisplayedRowCount (false);
+ first_row_index = lastTopVisibleRowIndex;
Invalidate ();
OnScroll (e);
}
OnColumnAddedInternal(new DataGridViewColumnEventArgs(e.Element as DataGridViewColumn));
break;
case CollectionChangeAction.Remove:
- OnColumnRemovedInternal(new DataGridViewColumnEventArgs(e.Element as DataGridViewColumn));
+ OnColumnPostRemovedInternal(new DataGridViewColumnEventArgs(e.Element as DataGridViewColumn));
break;
case CollectionChangeAction.Refresh:
break;
only_visible = (mode == DataGridViewAutoSizeColumnMode.DisplayedCells || mode == DataGridViewAutoSizeColumnMode.DisplayedCellsExceptHeader);
for (int i = first_row; i < Rows.Count; i++) {
+ if (!Rows[i].Visible)
+ continue;
if (only_visible) {
Rectangle row_rect = this.GetRowDisplayRectangle (i, false);
if (!ClientRectangle.IntersectsWith (row_rect))
return bounds;
}
- internal void PrepareEditingRow (bool cell_changed, bool column_changed)
+ private void PrepareEditingRow (bool cell_changed, bool column_changed)
{
if (new_row_editing)
return;
show = ColumnCount > 0 && AllowUserToAddRows;
- if (!show && editing_row != null) {
- Rows.RemoveInternal (editing_row);
- editing_row = null;
+ if (!show) {
+ RemoveEditingRow ();
} else if (show) {
if (editing_row != null && (cell_changed || column_changed)) {
// The row changed, it's no longer an editing row.
// or
// The number of columns has changed, we need a new editing row.
- Rows.RemoveInternal (editing_row);
- editing_row = null;
+ RemoveEditingRow ();
}
if (editing_row == null) {
editing_row = RowTemplateFull;
}
}
+ internal void RemoveEditingRow ()
+ {
+ if (editing_row != null) {
+ if (Rows.Contains (editing_row))
+ Rows.RemoveInternal (editing_row);
+ editing_row = null;
+ }
+ }
+
internal DataGridViewRow EditingRow {
get { return editing_row; }
}
{
if (type == typeof (bool))
return new DataGridViewCheckBoxColumn ();
+ else if (typeof(Bitmap).IsAssignableFrom (type))
+ return new DataGridViewImageColumn ();
return new DataGridViewTextBoxColumn ();
}
private void ClearBinding ()
{
- columns.ClearAutoGeneratedColumns ();
- rows.Clear ();
- PrepareEditingRow (false, true);
+ if (IsCurrentCellInEditMode && !EndEdit ())
+ CancelEdit ();
+ MoveCurrentCell (-1, -1, false, false, false, true);
+
if (DataManager != null) {
DataManager.ListChanged -= OnListChanged;
DataManager.PositionChanged -= OnListPositionChanged;
+ columns.ClearAutoGeneratedColumns ();
+ rows.Clear ();
+ RemoveEditingRow ();
}
}
+
+ private void ResetRows ()
+ {
+ rows.Clear ();
+ RemoveEditingRow ();
+ if (DataManager != null) {
+ foreach (object element in DataManager.List)
+ AddBoundRow (element);
+ }
+ PrepareEditingRow (false, true);
+ OnListPositionChanged (this, EventArgs.Empty);
+ }
private void DoBinding ()
{
// This keeps out things like arrays
if ((typeof(ICollection).IsAssignableFrom (property.PropertyType)))
continue;
+ if (!property.IsBrowsable)
+ continue;
if (IsColumnAlreadyBound (property.DisplayName))
continue;
MoveCurrentCell (0, 0, true, false, false, false);
}
+ PrepareEditingRow (false, true);
PerformLayout();
Invalidate ();
}
{
if (x == -1 || y == -1)
x = y = -1;
+ else {
+ if (x < 0 || x > Columns.Count - 1)
+ throw new ArgumentOutOfRangeException ("x");
+ if (y < 0 || y > Rows.Count - 1)
+ throw new ArgumentOutOfRangeException ("y");
+
+ if (!Rows[y].Visible) {
+ for (int i = y; i < Rows.Count; i++) {
+ if (Rows[i].Visible) {
+ y = i;
+ break;
+ }
+ }
+ }
+
+ if (!Columns[x].Visible) {
+ for (int i = x; i < Columns.Count; i++) {
+ if (Columns[i].Visible) {
+ x = i;
+ break;
+ }
+ }
+ }
+
+ // in case either no visible columns or rows
+ if (!Rows[y].Visible || !Columns[x].Visible)
+ x = y = -1;
+ }
if (!SetCurrentCellAddressCore (x, y, true, false, false)) {
ClearSelection ();
// If the current cell isn't visible, scroll to it
if (scroll) {
int disp_x = ColumnIndexToDisplayIndex (x);
+ bool scrollbarsRefreshed = false;
if (disp_x < first_col_index) {
+ // The trick here is that in order to avoid unnecessary calculations each time a row/column
+ // is added/removed we recalculate the whole grid size just before just before the scroll
+ // to selection.
+ RefreshScrollBars ();
+ scrollbarsRefreshed = true;
int delta_x = 0;
if (disp_x == 0)
delta_x = horizontalScrollBar.Value;
- else
+ else {
+ // in case the column got removed
+ if (first_col_index >= ColumnCount)
+ first_col_index = ColumnCount - 1;
for (int i = disp_x; i < first_col_index; i++)
delta_x += Columns[ColumnDisplayIndexToIndex (i)].Width;
+ }
horizontalScrollBar.SafeValueSet (horizontalScrollBar.Value - delta_x);
OnHScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, horizontalScrollBar.Value));
int delta_y = 0;
if (disp_y < first_row_index) {
+ if (!scrollbarsRefreshed)
+ RefreshScrollBars ();
+
if (disp_y == 0)
delta_y = verticalScrollBar.Value;
- else
+ else {
+ // in case the row got removed
+ if (first_row_index >= RowCount)
+ first_row_index = RowCount - 1;
for (int i = disp_y; i < first_row_index; i++)
delta_y += GetRowInternal (i).Height;
+ }
verticalScrollBar.SafeValueSet (verticalScrollBar.Value - delta_y);
OnVScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, verticalScrollBar.Value));
} else if (disp_y > first_row_index + displayedRowsCount - 1) {
+ if (!scrollbarsRefreshed)
+ RefreshScrollBars ();
+
if (disp_y == Rows.Count - 1)
delta_y = verticalScrollBar.Maximum - verticalScrollBar.Value;
else
case ListChangedType.ItemChanged:
break;
default:
- ReBind ();
+ ResetRows ();
break;
}
projects / mono.git / blobdiff