/// <summary>
/// Moves the selected elements down in the order of columns.
/// </summary>
/// <param name="sender">The object that originated the event.</param>
/// <param name="e">The event arguments.</param>
private void buttonMoveDown_Click(object sender, System.EventArgs e)
{
// This will suspend the events while the lists are udpated.
this.listBoxDisplayedFields.BeginUpdate();
// This willl move each of the items in a downward direction in the list of displayed columns.
int[] selectedIndices = new int[this.listBoxDisplayedFields.SelectedIndices.Count];
this.listBoxDisplayedFields.SelectedIndices.CopyTo(selectedIndices, 0);
Array.Reverse(selectedIndices);
foreach (int selectedIndex in selectedIndices)
{
// This will stop the operation when the selected columns have reached the rightmost side of the document.
if (selectedIndex == this.listBoxDisplayedFields.Items.Count - 1)
{
break;
}
// Move the element down in the ordering of the column list data structure.
Stylesheet.ColumnNode sourceColumn = (Stylesheet.ColumnNode) this.listBoxDisplayedFields.Items[selectedIndex];
Stylesheet.ColumnNode destinationColumn = (Stylesheet.ColumnNode) this.listBoxDisplayedFields.Items[selectedIndex + 1];
int sourceIndex = this.columnList.IndexOf(sourceColumn);
int destinationIndex = this.columnList.IndexOf(destinationColumn);
this.columnList.Move(sourceIndex, destinationIndex);
// Move the element down the list box also.
this.listBoxDisplayedFields.Items.RemoveAt(selectedIndex);
this.listBoxDisplayedFields.Items.Insert(selectedIndex + 1, sourceColumn);
this.listBoxDisplayedFields.SetSelected(selectedIndex + 1, true);
}
// This will re-enable the events
this.listBoxDisplayedFields.EndUpdate();
}
/// <summary>
/// Moves the selected elements up in the order of columns.
/// </summary>
/// <param name="sender">The object that originated the event.</param>
/// <param name="e">The event arguments.</param>
private void buttonMoveUp_Click(object sender, System.EventArgs e)
{
// This will suspend the events while the lists are udpated.
this.listBoxDisplayedFields.BeginUpdate();
// This will move the selected items upward in the list box.
foreach (int selectedIndex in this.listBoxDisplayedFields.SelectedIndices)
{
// Halt the operation if the columns are already at the start of the report. With a multiple selection, this will
// appear to halt the whole train of selected items when it reaches the start of the column list.
if (selectedIndex == 0)
{
break;
}
// Move the element up one in the ordering of the columns in the internal data structures.
Stylesheet.ColumnNode sourceColumn = (Stylesheet.ColumnNode) this.listBoxDisplayedFields.Items[selectedIndex];
Stylesheet.ColumnNode destinationColumn = (Stylesheet.ColumnNode) this.listBoxDisplayedFields.Items[selectedIndex - 1];
int sourceIndex = this.columnList.IndexOf(sourceColumn);
int destinationIndex = this.columnList.IndexOf(destinationColumn);
this.columnList.Move(sourceIndex, destinationIndex);
// Move the element up in the list box also.
this.listBoxDisplayedFields.Items.RemoveAt(selectedIndex);
this.listBoxDisplayedFields.Items.Insert(selectedIndex - 1, sourceColumn);
this.listBoxDisplayedFields.SetSelected(selectedIndex - 1, true);
}
// This will re-enable the events
this.listBoxDisplayedFields.EndUpdate();
}
/// <summary>
/// Parses the XSL Stylesheet for the description of a column.
/// </summary>
/// <param name="xmlTokenReader">Represents a reader that provides fast, non-cached, forward only access to XML Data.</param>
public void ParseColumnStart()
{
// Create a Column Node and initialize from the incoming XSL data.
Stylesheet.ColumnNode column = new Stylesheet.ColumnNode();
// Add this node to current parent node and then push it onto the stack. These elements will form a tree structure
// roughly equivalent to the same form they had in the XML file.
this.nodeStack.Peek().Add(column);
this.nodeStack.Push(column);
}
/// <summary>
/// Removes a column from the list of displayed columns.
/// </summary>
/// <param name="sender">The object that originated the event.</param>
/// <param name="e">The event arguments.</param>
private void buttonRemove_Click(object sender, System.EventArgs e)
{
// Make each of the selected columns visible and move it from the 'Displayed' list to the 'Displayed list. Note that
// the selection is changed during the loop, so a copy of the selected items is needed for the loop.
Stylesheet.ColumnNode[] selectedItems = new Stylesheet.ColumnNode[this.listBoxDisplayedFields.SelectedItems.Count];
this.listBoxDisplayedFields.SelectedItems.CopyTo(selectedItems, 0);
// HACK - make this work with the new ColumnView
//foreach (Stylesheet.ColumnNode column in selectedItems)
// column.IsDisplayed = false;
DrawListBoxes();
}
/// <summary>Populate the list boxes with the hidden and displayed columns available.</summary>
private void DrawListBoxes()
{
// Populate the 'Available' list of columns with the hidden columns. Note that a 'ColumnItem' class is needed to get a
// readable name for the items displayed in the list box.
// HACK - This needs to work with the ViewColumns list.
Stylesheet.ColumnsNode availableList = new Stylesheet.ColumnsNode();
Stylesheet.ColumnsNode displayedList = new Stylesheet.ColumnsNode();
//foreach (Stylesheet.ColumnNode column in this.columnList)
// (column.IsDisplayed ? displayedList : availableList).Add(column);
Stylesheet.ColumnNode[] availableColumns = new Stylesheet.ColumnNode[availableList.Count];
availableList.CopyTo(availableColumns, 0);
Stylesheet.ColumnNode[] displayedColumns = new Stylesheet.ColumnNode[displayedList.Count];
displayedList.CopyTo(displayedColumns, 0);
// This will preserve the selection of the available (hidden) columns when the list is redrawn.
ListBox.SelectedObjectCollection selectedAvailableObjects = this.listBoxAvailableFields.SelectedItems;
Stylesheet.ColumnNode[] selectedAvailableColumns = new Stylesheet.ColumnNode[selectedAvailableObjects.Count];
selectedAvailableObjects.CopyTo(selectedAvailableColumns, 0);
// This will preserve the selection of the displayed (visible) columns when the list is redrawn.
ListBox.SelectedObjectCollection selectedDisplayedObjects = this.listBoxDisplayedFields.SelectedItems;
Stylesheet.ColumnNode[] selectedDisplayedColumns = new Stylesheet.ColumnNode[selectedDisplayedObjects.Count];
selectedDisplayedObjects.CopyTo(selectedDisplayedColumns, 0);
// Clear out the previous entries and repopulate the list of available (hidden) fields. Note that the updating is
// suspended so the user doesn't see the items cleared out. If the updating were not inhibited, there would be a
// noticable 'blink' as the items were cleared and repopulated. Note that the selected state of the items is preserved when the list is
// redrawn.
this.listBoxAvailableFields.BeginUpdate();
this.listBoxAvailableFields.Items.Clear();
this.listBoxAvailableFields.Items.AddRange(availableColumns);
foreach (Stylesheet.ColumnNode column in selectedAvailableColumns)
{
int index = this.listBoxAvailableFields.Items.IndexOf(column);
if (index != -1)
{
this.listBoxAvailableFields.SetSelected(index, true);
}
}
foreach (Stylesheet.ColumnNode column in selectedDisplayedColumns)
{
int index = this.listBoxAvailableFields.Items.IndexOf(column);
if (index != -1)
{
this.listBoxAvailableFields.SetSelected(index, true);
}
}
this.listBoxAvailableFields.EndUpdate();
// Do the same for the displayed fields. Note that the selected state of the items is preserved when the list is
// redrawn.
this.listBoxDisplayedFields.BeginUpdate();
this.listBoxDisplayedFields.Items.Clear();
this.listBoxDisplayedFields.Items.AddRange(displayedColumns);
foreach (Stylesheet.ColumnNode column in selectedAvailableColumns)
{
int index = this.listBoxDisplayedFields.Items.IndexOf(column);
if (index != -1)
{
this.listBoxDisplayedFields.SetSelected(index, true);
}
}
foreach (Stylesheet.ColumnNode column in selectedDisplayedColumns)
{
int index = this.listBoxDisplayedFields.Items.IndexOf(column);
if (index != -1)
{
this.listBoxDisplayedFields.SetSelected(index, true);
}
}
this.listBoxDisplayedFields.EndUpdate();
}
