/// <summary>
/// Overrides the method used to provide basic behaviour for selecting editor.
/// Shows our custom control for editing the value.
/// </summary>
/// <param name="context">The context of the editing control</param>
/// <param name="provider">A valid service provider</param>
/// <param name="value">The current value of the object to edit</param>
/// <returns>The new value of the object</returns>
public override object EditValue(ITypeDescriptorContext context,
IServiceProvider provider, object value)
{
if (context != null && context.Instance != null && provider != null)
{
edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if (edSvc != null)
{
// Create a ListBox and populate it with all the enum values
clb = new ListBox();
clb.BorderStyle = BorderStyle.FixedSingle;
clb.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawFixed;
clb.MeasureItem += new MeasureItemEventHandler(this.OnMeasureItem);
clb.DrawItem += new DrawItemEventHandler(this.OnDrawItem);
clb.MouseDown += new MouseEventHandler(this.OnMouseDown);
clb.MouseMove += new MouseEventHandler(this.OnMouseMoved);
clb.DoubleClick += new EventHandler(this.OnDoubleClick);
tooltipControl = new ToolTip();
tooltipControl.ShowAlways = true;
clb.BeginUpdate();
int iSelected = 0; // by default will be selected first item
foreach (string name in Enum.GetNames(context.PropertyDescriptor.PropertyType))
{
// Get the enum value
object enumVal = Enum.Parse(context.PropertyDescriptor.PropertyType, name);
// Get the int value
int intVal = (int)Convert.ChangeType(enumVal, typeof(int));
// Get the description attribute for this field
System.Reflection.FieldInfo fi = context.PropertyDescriptor.PropertyType.GetField(name);
DescriptionAttribute[] attrs = ( DescriptionAttribute[] )
fi.GetCustomAttributes(typeof(DescriptionAttribute), false);
// Store the the description
string tooltip = attrs.Length > 0 ? attrs[0].Description : string.Empty;
// Creates a clbItem that stores the name, the int value and the tooltip
clbItem item = new clbItem(enumVal.ToString(), intVal, tooltip);
// Add the item with the right check state
int index = clb.Items.Add(item);
// set selected item
if (intVal == (int)value)
{
iSelected = index;
}
}
clb.EndUpdate();
clb.SelectedIndex = iSelected;
// Show our CheckedListbox as a DropDownControl.
// This methods returns only when the dropdowncontrol is closed
edSvc.DropDownControl(clb);
// Get the sum of all checked flags
int result = ((clbItem)clb.SelectedItem).Value;
// return the right enum value corresponding to the result
return(Enum.ToObject(context.PropertyDescriptor.PropertyType, result));
}
}
return(value);
}
/// <summary>
/// Overrides the method used to provide basic behaviour for selecting editor.
/// Shows our custom control for editing the value.
/// </summary>
/// <param name="context">The context of the editing control</param>
/// <param name="provider">A valid service provider</param>
/// <param name="value">The current value of the object to edit</param>
/// <returns>The new value of the object</returns>
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
if (context != null && context.Instance != null && provider != null)
{
edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if (edSvc != null)
{
// Create a CheckedListBox and populate it with all the enum values
clb = new CheckedListBox();
clb.BorderStyle = BorderStyle.FixedSingle;
clb.CheckOnClick = true;
clb.MouseDown += new MouseEventHandler(this.OnMouseDown);
clb.MouseMove += new MouseEventHandler(this.OnMouseMoved);
clb.DoubleClick += new EventHandler(this.OnDoubleClick);
tooltipControl = new ToolTip();
tooltipControl.ShowAlways = true;
clb.BeginUpdate();
foreach (string name in Enum.GetNames(context.PropertyDescriptor.PropertyType))
{
// Get the enum value
object enumVal = Enum.Parse(context.PropertyDescriptor.PropertyType, name);
// Get the int value
int intVal = (int)Convert.ChangeType(enumVal, typeof(int));
// Get the description attribute for this field
System.Reflection.FieldInfo fi = context.PropertyDescriptor.PropertyType.GetField(name);
DescriptionAttribute[] attrs = ( DescriptionAttribute[] )
fi.GetCustomAttributes(typeof(DescriptionAttribute), false);
BrowsableAttribute[] skipAttr = ( BrowsableAttribute[] )
fi.GetCustomAttributes(typeof(BrowsableAttribute), false);
// if flag must be skip in desiner
if (skipAttr.Length > 0 && skipAttr[0].Browsable == false)
{
continue;
}
// Store the the description
string tooltip = (attrs.Length > 0) ? attrs[0].Description : string.Empty;
// Get the int value of the current enum value (the one being edited)
int intEdited = ( int )Convert.ChangeType(value, typeof(int));
// show in tooltip int value of flag
tooltip += "(value: " + intEdited.ToString() + ")";
// Creates a clbItem that stores the name, the int value and the tooltip
clbItem item = new clbItem(enumVal.ToString(), intVal, tooltip);
// Get the checkstate from the value being edited
bool checkedItem = (intEdited & intVal) > 0;
// Add the item with the right check state
clb.Items.Add(item, checkedItem);
}
clb.EndUpdate();
// Show our CheckedListbox as a DropDownControl.
// This methods returns only when the dropdowncontrol is closed
edSvc.DropDownControl(clb);
// Get the sum of all checked flags
int result = 0;
foreach (clbItem obj in clb.CheckedItems)
{
result += obj.Value;
}
// return the right enum value corresponding to the result
return(Enum.ToObject(context.PropertyDescriptor.PropertyType, result));
}
}
return(value);
}
/// <summary>
/// Overrides the method used to provide basic behaviour for selecting editor.
/// Shows our custom control for editing the value.
/// </summary>
/// <param name="context">The context of the editing control</param>
/// <param name="provider">A valid service provider</param>
/// <param name="value">The current value of the object to edit</param>
/// <returns>The new value of the object</returns>
public override object EditValue( ITypeDescriptorContext context, IServiceProvider provider, object value)
{
if( context != null && context.Instance != null && provider != null )
{
edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if( edSvc != null )
{
// Create a CheckedListBox and populate it with all the enum values
clb = new CheckedListBox();
clb.BorderStyle = BorderStyle.FixedSingle;
clb.CheckOnClick = true;
clb.MouseDown += new MouseEventHandler(this.OnMouseDown);
clb.MouseMove += new MouseEventHandler(this.OnMouseMoved);
clb.DoubleClick += new EventHandler( this.OnDoubleClick );
tooltipControl = new ToolTip();
tooltipControl.ShowAlways = true;
clb.BeginUpdate();
foreach( string name in Enum.GetNames( context.PropertyDescriptor.PropertyType ) )
{
// Get the enum value
object enumVal = Enum.Parse(context.PropertyDescriptor.PropertyType, name);
// Get the int value
int intVal = (int) Convert.ChangeType(enumVal, typeof(int));
// Get the description attribute for this field
System.Reflection.FieldInfo fi = context.PropertyDescriptor.PropertyType.GetField(name);
DescriptionAttribute[] attrs = ( DescriptionAttribute[] )
fi.GetCustomAttributes( typeof( DescriptionAttribute ), false );
BrowsableAttribute[] skipAttr = ( BrowsableAttribute[] )
fi.GetCustomAttributes( typeof( BrowsableAttribute ), false );
// if flag must be skip in desiner
if( skipAttr.Length > 0 && skipAttr[0].Browsable == false ) continue;
// Store the the description
string tooltip = ( attrs.Length > 0 ) ? attrs[0].Description : string.Empty;
// Get the int value of the current enum value (the one being edited)
int intEdited = ( int )Convert.ChangeType( value, typeof( int ) );
// show in tooltip int value of flag
tooltip += "(value: " + intEdited.ToString() + ")";
// Creates a clbItem that stores the name, the int value and the tooltip
clbItem item = new clbItem(enumVal.ToString(), intVal, tooltip);
// Get the checkstate from the value being edited
bool checkedItem = (intEdited & intVal) > 0;
// Add the item with the right check state
clb.Items.Add( item, checkedItem );
}
clb.EndUpdate();
// Show our CheckedListbox as a DropDownControl.
// This methods returns only when the dropdowncontrol is closed
edSvc.DropDownControl( clb );
// Get the sum of all checked flags
int result = 0;
foreach( clbItem obj in clb.CheckedItems )
{
result += obj.Value;
}
// return the right enum value corresponding to the result
return Enum.ToObject(context.PropertyDescriptor.PropertyType, result);
}
}
return value;
}
/// <summary>
/// Overrides the method used to provide basic behaviour for selecting editor.
/// Shows our custom control for editing the value.
/// </summary>
/// <param name="context">The context of the editing control</param>
/// <param name="provider">A valid service provider</param>
/// <param name="value">The current value of the object to edit</param>
/// <returns>The new value of the object</returns>
public override object EditValue( ITypeDescriptorContext context,
IServiceProvider provider, object value)
{
if( context != null && context.Instance != null && provider != null )
{
edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if( edSvc != null )
{
// Create a ListBox and populate it with all the enum values
clb = new ListBox();
clb.BorderStyle = BorderStyle.FixedSingle;
clb.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawFixed;
clb.MeasureItem += new MeasureItemEventHandler( this.OnMeasureItem );
clb.DrawItem += new DrawItemEventHandler( this.OnDrawItem );
clb.MouseDown += new MouseEventHandler( this.OnMouseDown );
clb.MouseMove += new MouseEventHandler( this.OnMouseMoved );
clb.DoubleClick += new EventHandler( this.OnDoubleClick );
tooltipControl = new ToolTip();
tooltipControl.ShowAlways = true;
clb.BeginUpdate();
int iSelected = 0; // by default will be selected first item
foreach( string name in Enum.GetNames( context.PropertyDescriptor.PropertyType ) )
{
// Get the enum value
object enumVal = Enum.Parse( context.PropertyDescriptor.PropertyType, name );
// Get the int value
int intVal = (int)Convert.ChangeType( enumVal, typeof( int ) );
// Get the description attribute for this field
System.Reflection.FieldInfo fi = context.PropertyDescriptor.PropertyType.GetField(name);
DescriptionAttribute[] attrs = ( DescriptionAttribute[] )
fi.GetCustomAttributes( typeof( DescriptionAttribute ), false );
// Store the the description
string tooltip = attrs.Length > 0 ? attrs[0].Description : string.Empty;
// Creates a clbItem that stores the name, the int value and the tooltip
clbItem item = new clbItem( enumVal.ToString(), intVal, tooltip );
// Add the item with the right check state
int index = clb.Items.Add( item );
// set selected item
if( intVal == (int)value )
{
iSelected = index;
}
}
clb.EndUpdate();
clb.SelectedIndex = iSelected;
// Show our CheckedListbox as a DropDownControl.
// This methods returns only when the dropdowncontrol is closed
edSvc.DropDownControl( clb );
// Get the sum of all checked flags
int result = ((clbItem)clb.SelectedItem).Value;
// return the right enum value corresponding to the result
return Enum.ToObject( context.PropertyDescriptor.PropertyType, result );
}
}
return value;
}
