/// <summary>
/// Parses the XSL Stylesheet for the start of a list of columns.
/// </summary>
/// <param name="xmlTokenReader">Represents a reader that provides fast, non-cached, forward only access to XML Data.</param>
public void ParseColumnsStart()
{
// Create a Columns Node.
Stylesheet.ColumnsNode columnsNode = new Stylesheet.ColumnsNode();
// 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(columnsNode);
this.nodeStack.Push(columnsNode);
}
/// <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();
}
