private static IControlService GetControlService(IBindingContainer bindingContainer)
{
IControlService controlService = null;
IBindingServicesProvider serviceProvider = bindingContainer as IBindingServicesProvider;
if (serviceProvider != null)
{
controlService = serviceProvider.ControlService;
}
else
{
controlService = new WebformsControlService();
}
return(controlService);
}
protected override void OnInit(EventArgs e)
{
IBindingTarget page = this.Page as IBindingTarget;
if (page == null)
{
throw new InvalidOperationException("This control can only be used on pages that implement IBindingTarget");
}
WebformsControlService controlService = new WebformsControlService();
IBindingTarget ctrl = controlService.FindControlRecursive(page, this.GetType());
if (ctrl != null && ctrl.UniqueID != this.UniqueID)
{
throw new InvalidOperationException("Only one control of type BindingOptions can appear of each page");
}
base.OnInit(e);
}
/// <summary>
/// Bind using a global Resource binding
/// </summary>
/// <param name="control"></param>
/// <param name="resourceID">The id of the binding which should be used</param>
/// <returns></returns>
public static object BindResource(this object control, string resourceID)
{
Control ctrl = control as Control;
IControlService service = new WebformsControlService();
IBindingTarget target = new WebformControl(ctrl.Page);
WebformControl webFormControl = service.FindControlRecursive(target, typeof(BindingOptionsControl)) as WebformControl;
BindingOptionsControl bindingOptions = webFormControl.Control as BindingOptionsControl;
if (bindingOptions == null)
{
throw new InvalidOperationException(NEED_BINDING_OPTIONS_CONTROL);
}
if (bindingOptions.Resources == null)
{
throw new InvalidOperationException(NEED_BINDING_OPTIONS_RESOURCES);
}
Options options = bindingOptions.Resources.Where(r => r.ID == resourceID).FirstOrDefault();
if (options == null)
{
if (bindingOptions.Resources == null)
{
throw new InvalidOperationException(NEED_BINDING_RESOURCE);
}
}
if (options.Mode == BindingMode.Command)
{
BindCommand(control, options);
return(null);
}
else
{
return(Bind(control, options));
}
}
