private void UpdateView(IEnumerable value)
{
// NOTE : We need to clear the SortDescription before
// clearing the InnerGrid.Columns so that the Adorners
// are appropriately cleared.
InnerListColumn sortedColumn = this.SortedColumn;
this.ClearSort();
// Release the current inner grid \\
this.ReleaseInnerGridReferences();
if (this.AutoGenerateColumns)
{
this.innerGrid = new InnerListGridView();
// PopulateColumns deals with a null newEnumerable
this.innerGrid.PopulateColumns(value);
}
else
{
this.innerGrid = new InnerListGridView(this.Columns);
}
this.View = this.innerGrid;
this.SetColumnHeaderActions();
if (sortedColumn != null && this.Columns.Contains(sortedColumn))
{
this.ApplySort(sortedColumn, false);
}
}
/// <summary>
/// Adds the specified columns, and optionally default filter and search rules.
/// </summary>
/// <param name="column">The column to add.</param>
/// <param name="addDefaultFilterRules">Whether to add default filter rules for the specified column.</param>
/// <exception cref="ArgumentNullException">The specified value is a null reference.</exception>
public void AddColumn(InnerListColumn column, bool addDefaultFilterRules)
{
if (column == null)
{
throw new ArgumentNullException("column");
}
this.List.Columns.Add(column);
if (addDefaultFilterRules)
{
Type genericSelectorRuleType = typeof(PropertyValueSelectorFilterRule <>).MakeGenericType(column.DataDescription.DataType);
ConstructorInfo selectorRuleConstructorInfo = genericSelectorRuleType.GetConstructor(new Type[] { typeof(string), typeof(string) });
SelectorFilterRule selectorRule = (SelectorFilterRule)selectorRuleConstructorInfo.Invoke(new object[] { column.DataDescription.PropertyName, column.DataDescription.DisplayName });
if (addDefaultFilterRules)
{
this.AddFilterRulePicker.ColumnFilterRules.Add(new AddFilterRulePickerItem(new FilterRulePanelItem(selectorRule, selectorRule.DisplayName)));
}
// Automatically add a search rule if the search box is shown \\
if (this.IsSearchShown)
{
this.SearchBox.Parser.TryAddSearchableRule <TextContainsFilterRule>(selectorRule);
// Add this property to the full-text search properties \\
this.defaultFullTextSearchRule.PropertyNames.Add(column.DataDescription.PropertyName);
}
}
}
/// <summary>
/// Sorts the list by the specified column. This has no effect if the list does not have a data source.
/// </summary>
/// <param name="column">
/// The column to sort
/// </param>
/// <param name="shouldScrollIntoView">
/// Indicates whether the SelectedItem should be scrolled into view.
/// </param>
/// <exception cref="ArgumentNullException">The specified value is a null reference.</exception>
public void ApplySort(InnerListColumn column, bool shouldScrollIntoView)
{
if (column == null)
{
throw new ArgumentNullException("column");
}
// NOTE : By setting the column here, it will be used
// later to set the sorted column when the UI state
// is ready.
this.sortedColumn = column;
// If the list hasn't been populated, don't do anything \\
if (this.CollectionView == null)
{
return;
}
this.UpdatePrimarySortColumn();
using (this.CollectionView.DeferRefresh())
{
ListCollectionView lcv = (ListCollectionView)this.CollectionView;
lcv.CustomSort = new PropertyValueComparer(this.GetDescriptionsForSorting(), true, FilterRuleCustomizationFactory.FactoryInstance.PropertyValueGetter);
}
if (shouldScrollIntoView && this.SelectedIndex > 0)
{
this.ScrollIntoView(this.SelectedItem);
}
}
/// <summary>
/// Remove button was clicked.
/// </summary>
/// <param name="sender">Remove button.</param>
/// <param name="e">The RoutedEventArgs.</param>
/// <remarks>
/// Note that we do not attempt to maintain the ordering of items
/// in the NotSelected list when they are removed and then added back.
/// In the current implementation, the View of the NotSelected list is
/// sorted by name through the CollectionViewSource.
/// </remarks>
internal void RemoveButtonClick(object sender, RoutedEventArgs e)
{
InnerListColumn column = (InnerListColumn)this.PART_SelectedList.SelectedItem;
Debug.Assert(null != column);
int selectedIndex = this.PART_SelectedList.SelectedIndex;
Debug.Assert(0 <= selectedIndex);
this.NotSelectedColumns.Add(column);
this.SelectedColumns.Remove(column);
// Without this, there is no selection after the item is removed.
if (selectedIndex < this.SelectedColumns.Count)
{ // Select next item in Selected list
// Note that we select the next item based on the index
// in the View rather than the ViewModel.
this.PART_SelectedList.SelectedIndex = selectedIndex;
}
else if (0 < selectedIndex)
{ // Highest-index item removed, select previous item
Debug.Assert((selectedIndex - 1) < this.SelectedColumns.Count);
this.PART_SelectedList.SelectedIndex = selectedIndex - 1;
} // otherwise there are no more items to select
// select new item in NotSelected list
this.PART_NotSelectedList.SelectedItem = column;
// Just to make sure, we call OnSelectionChanged
// explicitly here as well.
this.OnSelectionChanged();
}
/// <summary>
/// Syncronizes AvailableColumns and Columns preserving the order from Columns that
/// comes from the user moving Columns around.
/// </summary>
private void SynchronizeColumns()
{
this.canChangeColumns = true;
try
{
// Add to listViewColumns all Visible columns in availableColumns not already in listViewColumns
foreach (InnerListColumn column in this.AvailableColumns)
{
if (column.Visible && !this.Columns.Contains(column))
{
this.Columns.Add(column);
}
}
// Remove all columns which are not visible or removed from Available columns.
for (int i = this.Columns.Count - 1; i >= 0; i--)
{
InnerListColumn listViewColumn = (InnerListColumn)this.Columns[i];
if (!listViewColumn.Visible || !this.AvailableColumns.Contains(listViewColumn))
{
this.Columns.RemoveAt(i);
}
}
}
finally
{
this.canChangeColumns = false;
}
}
/// <summary>
/// Called when the ItemsSource changes to auto populate the GridView columns
/// with reflection information on the first element of the ItemsSource.
/// </summary>
/// <param name="newValue">
/// The new ItemsSource.
/// This is used just to fetch .the first collection element.
/// </param>
internal void PopulateColumns(System.Collections.IEnumerable newValue)
{
if (newValue == null)
{
return; // No elements, so we can't populate
}
IEnumerator newValueEnumerator = newValue.GetEnumerator();
if (!newValueEnumerator.MoveNext())
{
return; // No first element, so we can't populate
}
object first = newValueEnumerator.Current;
if (first == null)
{
return;
}
Debug.Assert(this.AvailableColumns.Count == 0, "AvailabeColumns should be empty at this point");
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(first);
foreach (PropertyDescriptor property in properties)
{
UIPropertyGroupDescription dataDescription = new UIPropertyGroupDescription(property.Name, property.Name, property.PropertyType);
InnerListColumn column = new InnerListColumn(dataDescription);
this.AvailableColumns.Add(column);
}
}
/// <summary>
/// Adds the specified column.
/// Default filter rules for the column will be added if the filter is shown.
/// A default search rule will be added if the search box is shown and the column's data type is searchable.
/// </summary>
/// <param name="column">The column to add.</param>
/// <exception cref="ArgumentNullException">The specified value is a null reference.</exception>
public void AddColumn(InnerListColumn column)
{
if (column == null)
{
throw new ArgumentNullException("column");
}
this.AddColumn(column, this.IsFilterShown);
}
private static ColumnStateDescriptor CreateColumnStateDescriptor(InnerListColumn ilc, bool isInUse)
{
ColumnStateDescriptor csd = new ColumnStateDescriptor();
csd.IsInUse = isInUse;
csd.Width = GetColumnWidth(ilc);
csd.SortDirection = ilc.DataDescription.SortDirection;
return(csd);
}
private static object WidthProperty_CoerceProperty(DependencyObject d, object baseValue)
{
InnerListColumn ilc = (InnerListColumn)d;
if (((double)baseValue) < ilc.MinWidth)
{
return(ilc.MinWidth);
}
return(baseValue);
}
/// <summary>
/// Called to implement sorting functionality.
/// </summary>
/// <param name="sender">Typically a GridViewColumnHeader.</param>
private void HeaderActionProcess(object sender)
{
GridViewColumnHeader header = (GridViewColumnHeader)sender;
InnerListColumn column = (InnerListColumn)header.Column;
UIPropertyGroupDescription dataDescription = column.DataDescription;
if (dataDescription == null)
{
return;
}
// If the sorted column is sorted again, reverse the sort \\
if (Object.ReferenceEquals(column, this.sortedColumn))
{
dataDescription.ReverseSortDirection();
}
this.ApplySort(column, true);
}
/// <summary>
/// Add button was clicked.
/// </summary>
/// <param name="sender">Add button.</param>
/// <param name="e">The RoutedEventArgs.</param>
internal void AddButtonClick(object sender, RoutedEventArgs e)
{
InnerListColumn column = (InnerListColumn)this.PART_NotSelectedList.SelectedItem;
Debug.Assert(column != null, "not null");
this.SelectedColumns.Add(column);
this.NotSelectedColumns.Remove(column);
// The next item in the NotSelected list
// is automatically selected.
// select new item in Selected list
this.PART_SelectedList.SelectedItem = column;
// Just to make sure, we call OnSelectionChanged
// explicitly here as well.
this.OnSelectionChanged();
}
/// <summary>
/// Clears the sort order from the list.
/// </summary>
public void ClearSort()
{
if (null == this.CollectionView)
{
return;
}
using (this.CollectionView.DeferRefresh())
{
this.sortedColumn = null;
ListCollectionView lcv = (ListCollectionView)this.CollectionView;
lcv.CustomSort = null;
}
// If columns are shown, update them to show none are sorted \\
if (this.InnerGrid != null)
{
this.UpdatePrimarySortColumn();
}
}
private static double GetColumnWidth(InnerListColumn ilc)
{
return(ilc.Visible ? ilc.ActualWidth : ilc.Width);
}
private static void SetColumnIsInUse(InnerListColumn ilc, bool isInUse)
{
ilc.Visible = isInUse;
}
private static void SetColumnSortDirection(InnerListColumn ilc, ListSortDirection sortDirection)
{
ilc.DataDescription.SortDirection = sortDirection;
}
/// <summary>
/// Adds the specified column.
/// Default filter rules for the column will be added if the filter is shown.
/// A default search rule will be added if the search box is shown and the column's data type is searchable.
/// </summary>
/// <param name="column">The column to add.</param>
/// <exception cref="ArgumentNullException">The specified value is a null reference.</exception>
public void AddColumn(InnerListColumn column)
{
if (column == null)
{
throw new ArgumentNullException("column");
}
this.AddColumn(column, this.IsFilterShown);
}
static private void MinWidthProperty_PropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
InnerListColumn obj = (InnerListColumn)o;
obj.OnMinWidthChanged(new PropertyChangedEventArgs <double>((double)e.OldValue, (double)e.NewValue));
}
/// <summary>
/// Adds the specified columns, and optionally default filter and search rules.
/// </summary>
/// <param name="column">The column to add.</param>
/// <param name="addDefaultFilterRules">Whether to add default filter rules for the specified column.</param>
/// <exception cref="ArgumentNullException">The specified value is a null reference.</exception>
public void AddColumn(InnerListColumn column, bool addDefaultFilterRules)
{
if (column == null)
{
throw new ArgumentNullException("column");
}
this.List.Columns.Add(column);
if (addDefaultFilterRules)
{
Type genericSelectorRuleType = typeof(PropertyValueSelectorFilterRule<>).MakeGenericType(column.DataDescription.DataType);
ConstructorInfo selectorRuleConstructorInfo = genericSelectorRuleType.GetConstructor(new Type[] { typeof(string), typeof(string) });
SelectorFilterRule selectorRule = (SelectorFilterRule)selectorRuleConstructorInfo.Invoke(new object[] { column.DataDescription.PropertyName, column.DataDescription.DisplayName });
if (addDefaultFilterRules)
{
this.AddFilterRulePicker.ColumnFilterRules.Add(new AddFilterRulePickerItem(new FilterRulePanelItem(selectorRule, selectorRule.DisplayName)));
}
// Automatically add a search rule if the search box is shown \\
if (this.IsSearchShown)
{
this.SearchBox.Parser.TryAddSearchableRule<TextContainsFilterRule>(selectorRule);
// Add this property to the full-text search properties \\
this.defaultFullTextSearchRule.PropertyNames.Add(column.DataDescription.PropertyName);
}
}
}
static private void DataDescriptionProperty_PropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
InnerListColumn obj = (InnerListColumn)o;
obj.OnDataDescriptionChanged(new PropertyChangedEventArgs <UIPropertyGroupDescription>((UIPropertyGroupDescription)e.OldValue, (UIPropertyGroupDescription)e.NewValue));
}
private void AddColumns(string[] propertyNames, string[] displayNames, Type[] types)
{
// Wait for the gridViewWindow thread to signal that loading of Window is done
if (this.gridViewWindowLoaded != null)
{
this.gridViewWindowLoaded.WaitOne();
this.gridViewWindowLoaded = null;
}
this.managementList.Dispatcher.Invoke(
System.Windows.Threading.DispatcherPriority.Normal,
new Action(
delegate()
{
// Pick the length of the shortest incoming arrays. Normally all incoming arrays should be of the same length.
int length = propertyNames.Length;
if (length > displayNames.Length)
{
length = displayNames.Length;
}
if (length > types.Length)
{
length = types.Length;
}
try
{
// Clear all columns in case the view is changed.
this.managementList.List.Columns.Clear();
// Clear column filter rules.
this.managementList.AddFilterRulePicker.ColumnFilterRules.Clear();
// Add columns with provided names and Types.
for (int i = 0; i < propertyNames.Length; ++i)
{
DataTemplate dataTemplate;
bool haveTemplate = this.managementList.FilterRulePanel.TryGetContentTemplate(types[i], out dataTemplate);
InnerListColumn column = null;
if(haveTemplate)
{
column = new InnerListColumn(new UIPropertyGroupDescription(propertyNames[i], displayNames[i], types[i]));
}
else
{
column = new InnerListColumn(new UIPropertyGroupDescription(propertyNames[i], displayNames[i], typeof(string)));
}
this.managementList.AddColumn(column);
}
this.managementList.List.SetColumnHeaderActions();
if(this.managementList.List.ItemsSource == null)
{
// Setting ItemsSource implicitly regenerates all columns.
this.managementList.List.ItemsSource = this.listItems;
}
// Set focus on ListView
this.managementList.List.SelectedIndex = 0;
this.managementList.List.Focus();
}
catch (Exception e)
{
// Store the exception in a local variable that will be checked later.
if(e.InnerException != null)
{
this.exception = e.InnerException;
}
else
{
this.exception = e;
}
}
}));
}
private void AddColumns(string[] propertyNames, string[] displayNames, Type[] types)
{
// Wait for the gridViewWindow thread to signal that loading of Window is done
if (this.gridViewWindowLoaded != null)
{
this.gridViewWindowLoaded.WaitOne();
this.gridViewWindowLoaded = null;
}
this.managementList.Dispatcher.Invoke(
System.Windows.Threading.DispatcherPriority.Normal,
new Action(
delegate()
{
// Pick the length of the shortest incoming arrays. Normally all incoming arrays should be of the same length.
int length = propertyNames.Length;
if (length > displayNames.Length)
{
length = displayNames.Length;
}
if (length > types.Length)
{
length = types.Length;
}
try
{
// Clear all columns in case the view is changed.
this.managementList.List.Columns.Clear();
// Clear column filter rules.
this.managementList.AddFilterRulePicker.ColumnFilterRules.Clear();
// Add columns with provided names and Types.
for (int i = 0; i < propertyNames.Length; ++i)
{
DataTemplate dataTemplate;
bool haveTemplate = this.managementList.FilterRulePanel.TryGetContentTemplate(types[i], out dataTemplate);
InnerListColumn column = null;
if (haveTemplate)
{
column = new InnerListColumn(new UIPropertyGroupDescription(propertyNames[i], displayNames[i], types[i]));
}
else
{
column = new InnerListColumn(new UIPropertyGroupDescription(propertyNames[i], displayNames[i], typeof(string)));
}
this.managementList.AddColumn(column);
}
this.managementList.List.SetColumnHeaderActions();
if (this.managementList.List.ItemsSource == null)
{
// Setting ItemsSource implicitly regenerates all columns.
this.managementList.List.ItemsSource = this.listItems;
}
// Set focus on ListView
this.managementList.List.SelectedIndex = 0;
this.managementList.List.Focus();
}
catch (Exception e)
{
// Store the exception in a local variable that will be checked later.
if (e.InnerException != null)
{
this.exception = e.InnerException;
}
else
{
this.exception = e;
}
}
}));
}
/// <summary>
/// Clears the sort order from the list.
/// </summary>
public void ClearSort()
{
if (null == this.CollectionView)
{
return;
}
using (this.CollectionView.DeferRefresh())
{
this.sortedColumn = null;
ListCollectionView lcv = (ListCollectionView)this.CollectionView;
lcv.CustomSort = null;
}
// If columns are shown, update them to show none are sorted \\
if (this.InnerGrid != null)
{
this.UpdatePrimarySortColumn();
}
}
/// <summary>
/// Sorts the list by the specified column. This has no effect if the list does not have a data source.
/// </summary>
/// <param name="column">
/// The column to sort
/// </param>
/// <param name="shouldScrollIntoView">
/// Indicates whether the SelectedItem should be scrolled into view.
/// </param>
/// <exception cref="ArgumentNullException">The specified value is a null reference.</exception>
public void ApplySort(InnerListColumn column, bool shouldScrollIntoView)
{
if (column == null)
{
throw new ArgumentNullException("column");
}
// NOTE : By setting the column here, it will be used
// later to set the sorted column when the UI state
// is ready.
this.sortedColumn = column;
// If the list hasn't been populated, don't do anything \\
if (this.CollectionView == null)
{
return;
}
this.UpdatePrimarySortColumn();
using (this.CollectionView.DeferRefresh())
{
ListCollectionView lcv = (ListCollectionView)this.CollectionView;
lcv.CustomSort = new PropertyValueComparer(this.GetDescriptionsForSorting(), true, FilterRuleCustomizationFactory.FactoryInstance.PropertyValueGetter);
}
if (shouldScrollIntoView && this.SelectedIndex > 0)
{
this.ScrollIntoView(this.SelectedItem);
}
}
/// <summary>
/// Called when the ItemsSource changes to auto populate the GridView columns
/// with reflection information on the first element of the ItemsSource.
/// </summary>
/// <param name="newValue">
/// The new ItemsSource.
/// This is used just to fetch .the first collection element.
/// </param>
internal void PopulateColumns(System.Collections.IEnumerable newValue)
{
if (newValue == null)
{
return; // No elements, so we can't populate
}
IEnumerator newValueEnumerator = newValue.GetEnumerator();
if (!newValueEnumerator.MoveNext())
{
return; // No first element, so we can't populate
}
object first = newValueEnumerator.Current;
if (first == null)
{
return;
}
Debug.Assert(this.AvailableColumns.Count == 0, "AvailabeColumns should be empty at this point");
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(first);
foreach (PropertyDescriptor property in properties)
{
UIPropertyGroupDescription dataDescription = new UIPropertyGroupDescription(property.Name, property.Name, property.PropertyType);
InnerListColumn column = new InnerListColumn(dataDescription);
this.AvailableColumns.Add(column);
}
}
static private void VisibleProperty_PropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
InnerListColumn obj = (InnerListColumn)o;
obj.OnVisibleChanged(new PropertyChangedEventArgs <bool>((bool)e.OldValue, (bool)e.NewValue));
}
