/// <summary>
/// default ctor
/// </summary>
/// <param name="columnChanged">The column that has changed</param>
/// <param name="action">The action for the event</param>
public ColumnStateChangedEventArgs(DataGridViewColumn columnChanged, ColumnStateChangeAction action)
{
this.action = action;
this.columnChanged = columnChanged;
}
/// <summary>
/// returns a datagrid view column with all the settings applied
/// </summary>
/// <returns>datagrid view column</returns>
/// <exception cref="NotSupportedException">Thrown when the exclude flag has been marked as true</exception>
internal DataGridViewColumn GetDataGridViewColumn()
{
if (exclude)
throw new NotSupportedException("Cannot call GetDataGridViewColumn if Exclude has been marked as true");
DataGridViewColumn column = new DataGridViewColumn(DisplayName, SortName);
//Collection behaviour
IValueConverter converter = null; //TODO IMPLEMENT CUSTOM STRATEGY
if (collectionBehaviour != CollectionBehaviour.None)
{
converter = CollectionNotificationManager.RegisterCollectionNotification(collectionBehaviour);
memeberBinding.Converter = converter;
column.CanSort = false;
}
column.DisplayMemberBinding = memeberBinding;
column.DefaultPosition = position;
return column;
}
//generates the column for the view
private void GenerateGridColumns(Type type)
{
//unregister to the old columns notifications
if (!UseDefaultView && View != null)
{
GridView oldView = View as GridView;
if (oldView != null)
foreach (INotifyPropertyChanged column in oldView.Columns)
column.PropertyChanged -= gridViewColumnPropertyChanged;
}
GridView gridView = new GridView();//grid view to display the columns
IList<DataGridViewColumn> columnsToAdd = PropertyInfoEngine.GetProperties<DataGridViewColumn>(
type, delegate(PropertyInfo property)
{
DataGridViewColumn column = null;
//get the attribute
DataGridViewPropertyDescriptorAttribute[] attributes = (DataGridViewPropertyDescriptorAttribute[])
property.GetCustomAttributes(typeof(DataGridViewPropertyDescriptorAttribute), true);
if (attributes != null && attributes.Length > 0)
{
if (attributes[0].Exclude)
return null; //return null so that we exclude this column
column = attributes[0].GetDataGridViewColumn();
}
else
{
column = new DataGridViewColumn(property.Name, property.Name);
column.DisplayMemberBinding = new Binding(property.Name);
}
//register to the notifications
((INotifyPropertyChanged)column).PropertyChanged += gridViewColumnPropertyChanged;
return column;
});
//add all the columns to the new grid view, and remove the excluded
for (int i = 0; i < columnsToAdd.Count; i++)
{
DataGridViewColumn column = columnsToAdd[i];
if (column != null)
{
gridView.Columns.Add(column);
}
else
{
columnsToAdd.RemoveAt(i);
i--;
}
}
//position the columns properly
for (int i = 0; i < columnsToAdd.Count; i++)
{
DataGridViewColumn columnToMove = columnsToAdd[i];
if(DataGridViewColumn.IsValidPosition(columnToMove.DefaultPosition))
gridView.Columns.Move(i, (columnToMove.DefaultPosition >= columnsToAdd.Count ? (columnsToAdd.Count-1) : columnToMove.DefaultPosition));
}
View = gridView;
}
/// <summary>
/// Returns a ColumnStateChangeAction that describes the property changed event
/// </summary>
/// <param name="sender">The DataGridViewColumn that has raised the event</param>
/// <param name="e">The event argmunets to parse</param>
/// <returns>Returns a ColumnStateChangeAction to represent the change of state</returns>
/// <exception cref="ArgumentNullException">Throws ArgumentNullException if the sender or the arguments are not valid</exception>
public static ColumnStateChangeAction GetActionFromPropertyChanged(DataGridViewColumn sender, PropertyChangedEventArgs e)
{
if (sender != null && IsEnabledPropertyChanged(e))
return sender.IsEnabled ? ColumnStateChangeAction.Enabled : ColumnStateChangeAction.Disabled;
throw new ArgumentNullException("e", ExceptionStrings.INVALID_PROPETY_CHANGED_EVENT_ARGS);
}
