/// <summary> /// perform Resizing column for given index and sets the width /// </summary> /// <param name="index"></param> /// <param name="width"></param> /// <returns></returns> /// <remarks></remarks> private bool ResizingColumn(int index, double width) { if (width <= 0) { return(false); } int columnindex = this.dataGrid.ResolveToGridVisibleColumnIndex(index); var gridcolumn = this.dataGrid.Columns[columnindex]; var args = new ResizingColumnsEventArgs(this.dataGrid) { ColumnIndex = index, Width = width }; if (this.dataGrid.RaiseResizingColumnsEvent(args)) { return(false); } width = ComputeResizingWidth(gridcolumn, args.Width); this.dataGrid.VisualContainer.ScrollColumns.SetLineResize(index, ComputeResizingWidth(gridcolumn, width)); if (width != args.Width) { return(false); } return(true); }
/// <summary> /// sets the width for column for given column index /// </summary> /// <param name="index"></param> /// <param name="width"></param> /// <returns></returns> /// <remarks></remarks> private bool SetColumnWidth(int index, double width) { int columnindex = this.dataGrid.ResolveToGridVisibleColumnIndex(index); var gridcolumn = this.dataGrid.Columns[columnindex]; var args = new ResizingColumnsEventArgs(this.dataGrid) { ColumnIndex = index, Width = Math.Round(width, 2) }; if (this.dataGrid.RaiseResizingColumnsEvent(args)) { return(false); } width = args.Width; this.dataGrid.VisualContainer.ScrollColumns.ResetLineResize(); gridcolumn.Width = width; return(true); }
/// <summary> /// Perfoms MouseUp operation on GridHeaderCellControl /// </summary> /// <param name="e">An <see cref="T:System.Windows.Input.MouseButtonEventArgs">MouseButtonEventArgs</see> that contains the event data.</param> /// <param name="headerCell"></param> /// <remarks></remarks> internal void DoActionOnMouseUp(MouseEventArgs e, GridHeaderCellControl headerCell) { #if !WPF PointerPoint pp = e.GetCurrentPoint(this.dataGrid.VisualContainer); double hScrollChange = 0; for (int i = 0; i < this.dataGrid.VisualContainer.FrozenColumns; i++) { hScrollChange += this.dataGrid.VisualContainer.ColumnWidths[i]; } var pointerPoint = new Point(pp.Position.X - (dataGrid.VisualContainer.HScrollBar.Value - hScrollChange), pp.Position.Y - dataGrid.VisualContainer.VScrollBar.Value); double delta = pointerPoint.X - dragLine.Corner; #else Point pp = e.GetPosition(this.dataGrid.VisualContainer); double delta = pp.X - dragLine.Corner; #endif var columnIndex = this.dataGrid.ResolveToGridVisibleColumnIndex(dragLine.LineIndex); double width = Math.Max(0, dragLine.Size + delta); if (!(columnIndex >= 0 && columnIndex < this.dataGrid.Columns.Count)) { return; } width = ComputeResizingWidth(this.dataGrid.Columns[columnIndex], width); this.dataGrid.VisualContainer.ScrollColumns.ResetLineResize(); var args = new ResizingColumnsEventArgs(this.dataGrid) { ColumnIndex = dragLine.LineIndex, Width = width }; if (columnIndex >= 0 && !dataGrid.RaiseResizingColumnsEvent(args)) { this.dataGrid.Columns[columnIndex].IsHidden = (args.Width == 0 || args.Width == 1); if ((args.Width == 0) || (args.Width == 1)) { this.dataGrid.Columns[columnIndex].Width = Math.Round(args.Width); //Reset the extendedwidth when column is in Hidden because of Resizing. this.dataGrid.Columns[columnIndex].ExtendedWidth = double.NaN; } else { if (args.Width != this.dataGrid.Columns[columnIndex].ActualWidth && this.dataGrid.Columns[columnIndex].ExtendedWidth > 0) { var actualWidth = this.dataGrid.Columns[columnIndex].ActualWidth; var extendedWidth = this.dataGrid.Columns[columnIndex].ExtendedWidth; var differenceInExtendedWidth = ((args.Width - actualWidth) < extendedWidth) ? (args.Width - actualWidth) : 0; this.dataGrid.Columns[columnIndex].ExtendedWidth = (differenceInExtendedWidth > 0) ? (extendedWidth - differenceInExtendedWidth) : double.NaN; } if ((this.dataGrid.ResolveToGridVisibleColumnIndex(this.dataGrid.VisualContainer.ScrollColumns.GetVisibleLines().Count) == 1) && this.dataGrid.Columns[columnIndex].Width == args.Width) { args.Width += 1; } this.dataGrid.Columns[columnIndex].Width = Math.Round(args.Width) == 0 ? 20 : Math.Round(args.Width); } } if ((args.Width == 0 || columnIndex >= 0 && dataGrid.Columns[columnIndex].IsHidden) && dataGrid.AllowResizingHiddenColumns && dataGrid.VisualContainer.ColumnCount == this.dataGrid.ResolveToGridVisibleColumnIndex(dragLine.LineIndex + 1)) { var headerRow = dataGrid.RowGenerator.Items.FirstOrDefault(row => row.RowIndex == dataGrid.GetHeaderIndex()); var columnBase = headerRow.VisibleColumns.FirstOrDefault(column => column.ColumnIndex == dragLine.LineIndex + 1); var prevHiddenIndex = columnIndex - 1; while (prevHiddenIndex > 0 && dataGrid.Columns[prevHiddenIndex].IsHidden) { prevHiddenIndex--; } if (columnBase != null) { var prevColumnHeader = (columnBase.ColumnElement as GridHeaderCellControl); if (prevHiddenIndex != columnIndex) { columnBase = headerRow.VisibleColumns.FirstOrDefault(column => column.ColumnIndex == prevHiddenIndex); prevColumnHeader = columnBase.ColumnElement as GridHeaderCellControl; } dataGrid.VisualContainer.ColumnWidths.SetHidden(dragLine.LineIndex, dragLine.LineIndex, true); dataGrid.Columns[dataGrid.ResolveToGridVisibleColumnIndex(dragLine.LineIndex)].IsHidden = true; dataGrid.Columns[dataGrid.ResolveToGridVisibleColumnIndex(dragLine.LineIndex)].Width = 0.0; } } if (dataGrid.SelectionController.CurrentCellManager.HasCurrentCell && dataGrid.SelectionController.CurrentCellManager.CurrentRowColumnIndex.ColumnIndex == dragLine.LineIndex) { #if !WPF dataGrid.Focus(FocusState.Programmatic); #endif } dragLine = null; #if !WPF headerCell.ReleasePointerCaptures(); if (Window.Current.CoreWindow.PointerCursor.Type != CoreCursorType.Arrow) { Window.Current.CoreWindow.PointerCursor = new CoreCursor(CoreCursorType.Arrow, 1); } #else headerCell.isMouseLeftButtonPressed = false; headerCell.ReleaseMouseCapture(); if (headerCell.Cursor != Cursors.Arrow) { SetPointerCursor(Cursors.Arrow, headerCell); } //WRT-4573 - While clicking on HeaderCell border on Resizing, the sorting operation is done in WinRT. Hence //the flag is skipped to set false which will be set on mouse move. this.isHovering = false; #endif }
internal void DoActionOnMouseMove(Point pp, GridHeaderCellControl headerCell) #endif { bool isLastColumnHidden = false; #if !WPF double hScrollChange = 0; for (int i = 0; i < this.dataGrid.VisualContainer.FrozenColumns; i++) { hScrollChange += this.dataGrid.VisualContainer.ColumnWidths[i]; } // since panel x moves to negative the resizing not properly working, so Abs removed for x calculation WRT-1311, skipping for negative shrinking for first column. var pointerPoint = new Point((pp.Position.X - (dataGrid.VisualContainer.HScrollBar.Value - hScrollChange)), Math.Abs(pp.Position.Y - dataGrid.VisualContainer.VScrollBar.Value)); if (this.isHovering && pp.Properties.IsLeftButtonPressed && this.dragLine != null) { var delta = 0.0d; int repeatCount; bool isHidden; isHidden = isFirstColumnHidden ? dataGrid.VisualContainer.ColumnWidths.GetHidden(dragLine.LineIndex - 1, out repeatCount) : dataGrid.VisualContainer.ColumnWidths.GetHidden(dragLine.LineIndex + 1, out repeatCount); delta = isFirstColumnHidden ? pointerPoint.X : pointerPoint.X - dragLine.Corner; delta = Math.Floor(delta); #else if (this.isHovering && this.dragLine != null && (headerCell.isMouseLeftButtonPressed || headerCell.isTouchPressed)) { //After hiding the column by resizing the column in AddNewRow with edit mode, when pressing enter key rendering issue has been shown in //above AddNewRow because the CurrentRowIndex is not updated due the Current column is in Hidden state. Hence the current cell is //edited and New row value has been committed. CurrentCellEndEdit(); //Above code raises CurrentCellValidating if customer shows MessageBox then release capture lost and dragline will be null. if (dragLine == null) { return; } var delta = 0.0d; int repeatCount; bool isHidden; isHidden = isFirstColumnHidden ? dataGrid.VisualContainer.ColumnWidths.GetHidden(dragLine.LineIndex - 1, out repeatCount) : dataGrid.VisualContainer.ColumnWidths.GetHidden(dragLine.LineIndex + 1, out repeatCount); delta = isFirstColumnHidden ? pp.X : pp.X - dragLine.Corner; #endif double width = Math.Max(0, dragLine.Size + delta); var args = new ResizingColumnsEventArgs(this.dataGrid) { ColumnIndex = dragLine.LineIndex, Width = width }; if (isHidden && dataGrid.AllowResizingHiddenColumns && #if !WPF Window.Current.CoreWindow.PointerCursor.Type == UnhideCursor #else headerCell.Cursor == UnhideCursor #endif ) { if (delta <= 0) //WPF-16041 added this condition to sync cursor and action when unhidden last column { isLastColumnHidden = true; } if (delta <= 2 && !isLastColumnHidden) { return; } var hiddenLineIndex = dragLine.LineIndex + 1; if (isFirstColumnHidden) { hiddenLineIndex = 0; } var columnIndex = this.dataGrid.ResolveToGridVisibleColumnIndex(hiddenLineIndex); dataGrid.GridColumnSizer.Suspend(); dataGrid.Columns[columnIndex].Width = delta; dataGrid.GridColumnSizer.Resume(); if (dataGrid.Columns[columnIndex].IsHidden && delta <= 0) { dataGrid.GridColumnSizer.Suspend(); dataGrid.Columns[columnIndex].IsHidden = false; dataGrid.GridColumnSizer.Resume(); if (!dataGrid.Columns[columnIndex].IsHidden) { var index = this.dataGrid.ResolveToScrollColumnIndex(this.dataGrid.Columns.IndexOf(dataGrid.Columns[columnIndex])); this.dataGrid.VisualContainer.ColumnWidths.SetHidden(index, index, false); //Need to call ScrollInView to bring the hidden column into view while hiding/unhiding this.dataGrid.VisualContainer.ScrollColumns.ScrollInView(index, -delta); } if (dataGrid.AllowResizingColumns && dataGrid.AllowResizingHiddenColumns) { this.dataGrid.ColumnResizingController.ProcessResizeStateManager(dataGrid.Columns[columnIndex]); } this.dataGrid.VisualContainer.NeedToRefreshColumn = true; this.dataGrid.VisualContainer.InvalidateMeasureInfo(); if (this.dataGrid.GridColumnDragDropController != null) { this.dataGrid.GridColumnDragDropController.ColumnHiddenChanged(dataGrid.Columns[columnIndex]); } } else { dataGrid.Columns[columnIndex].IsHidden = false; } this.dataGrid.RowGenerator.UpdateCellStyle(columnIndex); #if !WPF var cursor = CoreCursorType.Arrow; if (delta >= 0) { dragLine = HitTest(new Point(pointerPoint.X, pointerPoint.Y), out cursor); } else // WPF-16041 Since delta value is negative,need to calculate the dragline through GetVisibleAtLineIndex() for the lastcolumn { dragLine = dataGrid.VisualContainer.ScrollColumns.GetVisibleLineAtLineIndex(hiddenLineIndex); cursor = ResizingCursor; } if (cursor != CoreCursorType.Arrow) { SetPointerCursor(cursor); } #else var cursor = headerCell.Cursor; if (dragLine != null && dragLine.LineIndex != hiddenLineIndex) { //dragline will be null when unhiding last column with ColumnSizer - AutoLastColumnFill as it is not inside ViewPort dragLine = dataGrid.VisualContainer.ScrollColumns.GetVisibleLineAtLineIndex(hiddenLineIndex); cursor = ResizingCursor; } SetPointerCursor(cursor, headerCell); #endif if (!double.IsNaN(headerCell.Column.MinimumWidth)) { delta = Math.Max(delta, headerCell.Column.MinimumWidth); } if (!double.IsNaN(headerCell.Column.MaximumWidth)) { delta = Math.Min(delta, headerCell.Column.MaximumWidth); } //WPF-16041 Since delta is negative for last column, change the delta sign and set to Width //delta value switched to positive only when last column is hidden. Other cases, it won't hit if ((dragLine != null) && delta <= 0) { args = new ResizingColumnsEventArgs(this.dataGrid) { ColumnIndex = dragLine.LineIndex, Width = -delta } } ; else if (dragLine != null) { args = new ResizingColumnsEventArgs(this.dataGrid) { ColumnIndex = dragLine.LineIndex, Width = delta } } ; } if (dragLine != null && !this.dataGrid.RaiseResizingColumnsEvent(args)) { var headerRow = dataGrid.RowGenerator.Items.FirstOrDefault(row => row.RowIndex == dataGrid.GetHeaderIndex()); var columnBase = headerRow.VisibleColumns.FirstOrDefault(col => col.ColumnIndex == (dragLine.LineIndex)); if (columnBase != null && columnBase.ColumnElement is GridHeaderCellControl) { var column = (columnBase.ColumnElement as GridHeaderCellControl).Column; if (dragLine.LineIndex > dataGrid.FrozenColumnCount) { dataGrid.VisualContainer.ScrollColumns.SetLineResize(dragLine.LineIndex, ComputeResizingWidth(column, args.Width != 0 ? args.Width : 1)); } else { column.Width = ComputeResizingWidth(column, args.Width != 0 ? args.Width : 1); } } isFirstColumnHidden = false; } } else { this.isHovering = false; #if !WPF Point point = pointerPoint; var cursor = ResizingCursor; #else Point point = pp; var cursor = headerCell.Cursor; #endif #if !WPF var hit = HitTest(pointerPoint, out cursor); if (hit != null && cursor != CoreCursorType.Arrow) #else var hit = HitTest(pp, out cursor); //When LineIndex returns the first column index, this condition fails hence the greater than or equal to condition is added. if (hit != null && (cursor == UnhideCursor || hit.LineIndex >= dataGrid.GetFirstColumnIndex())) #endif { var lineIndex = hit.LineIndex; if (cursor == UnhideCursor) { lineIndex++; int count; if (this.dataGrid.VisualContainer.ColumnWidths.GetHidden(lineIndex, out count)) { lineIndex += count - 1; } else { lineIndex--; } } var index = this.dataGrid.ResolveToGridVisibleColumnIndex(lineIndex); if (index >= 0 && index < this.dataGrid.Columns.Count) { GridColumn column = this.dataGrid.Columns[index]; var lineindex = this.dataGrid.ResolveToScrollColumnIndex(this.dataGrid.Columns.IndexOf(column)); if (!this.CanResizeColumn(column)) { return; } #if WPF this.SetPointerCursor(cursor, headerCell); #else this.SetPointerCursor(cursor); #endif } } bool edgeHit = point.X < 5.0 && point.X > 0; if (hit == null && edgeHit) { hit = new VisibleLineInfo(0, 0, 0, point.X, 0, true, false); } if (hit != null || edgeHit) { var row = this.dataGrid.VisualContainer.ScrollRows.GetVisibleLineAtPoint(point.Y); if (row != null && row.IsHeader) { this.isHovering = true; } } #if !WPF if (!isHovering && Window.Current.CoreWindow.PointerCursor.Type != CoreCursorType.Arrow) { SetPointerCursor(CoreCursorType.Arrow); } #else if (!isHovering && headerCell.Cursor != Cursors.Arrow && (!headerCell.isMouseLeftButtonPressed || !headerCell.isTouchPressed)) { SetPointerCursor(Cursors.Arrow, headerCell); } #endif } }