public override object EditValue(ITypeDescriptorContext context, System.IServiceProvider provider, object value)
{
if (context == null || provider == null || context.Instance == null)
{
return(base.EditValue(provider, value));
}
if (m_MethodDelegate == null)
{
DelegateAttribute attr = (DelegateAttribute)context.PropertyDescriptor.Attributes[typeof(DelegateAttribute)];
m_MethodDelegate = attr.GetMethod;
}
if (m_sender == null)
{
m_sender = context.PropertyDescriptor as JxCustomProperty.CustomPropertyDescriptor;
}
return(m_MethodDelegate.Invoke(m_sender, null));
}
[RefreshProperties(RefreshProperties.All)] public override object EditValue(System.ComponentModel.ITypeDescriptorContext context, System.IServiceProvider provider, object value)
{
if (context == null || provider == null || context.Instance == null)
{
return(base.EditValue(provider, value));
}
oEditorService = (System.Windows.Forms.Design.IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if (oEditorService != null)
{
// Get the Back reference to the Custom Property
JxCustomProperty.CustomPropertyDescriptor oDescriptor = (JxCustomProperty.CustomPropertyDescriptor)context.PropertyDescriptor;
JxCustomProperty cp = (JxCustomProperty)oDescriptor.CustomProperty;
// Declare attributes
UIListboxDatasource datasource;
UIListboxValueMember valuemember;
UIListboxDisplayMember displaymember;
// Get attributes
datasource = (UIListboxDatasource)context.PropertyDescriptor.Attributes[typeof(UIListboxDatasource)];
valuemember = (UIListboxValueMember)context.PropertyDescriptor.Attributes[typeof(UIListboxValueMember)];
displaymember = (UIListboxDisplayMember)context.PropertyDescriptor.Attributes[typeof(UIListboxDisplayMember)];
oList.BorderStyle = BorderStyle.None;
oList.IntegralHeight = true;
if (datasource != null)
{
oList.DataSource = datasource.Value;
}
if (displaymember != null)
{
oList.DisplayMember = displaymember.Value;
}
if (valuemember != null)
{
oList.ValueMember = valuemember.Value;
}
if (value != null)
{
if (value.GetType().Name == "String")
{
oList.Text = (string)value;
}
else
{
oList.SelectedItem = value;
}
}
oList.SelectedIndexChanged += new System.EventHandler(this.SelectedItem);
oEditorService.DropDownControl(oList);
if (oList.SelectedIndices.Count == 1)
{
cp.SelectedItem = oList.SelectedItem;
cp.SelectedValue = oSelectedValue;
value = oList.Text;
}
oEditorService.CloseDropDown();
}
else
{
return(base.EditValue(provider, value));
}
return(value);
}