public static T CreateFrom <T>(TypeConfigurationElement typeConfiguration)
{
var constructorParameterElements = typeConfiguration.ConstructorParameters.ToList();
var parameters = new object[] { };
if (constructorParameterElements.Count > 0)
{
var tmp = new List <object>();
constructorParameterElements.ForEach(c => tmp.Add(c.Value));
parameters = tmp.ToArray();
}
var type = Type.GetType(typeConfiguration.Type);
if (type == null)
{
throw new Exception(string.Format("'{0}' cannot convert to type. ", typeConfiguration.Type));
}
var constructorInfos = type.GetConstructors().Where(c => c.GetParameters().Count() == parameters.Count());
var constructor = constructorInfos.FirstOrDefault(c => c.GetParameters().Select(p => p.Name).All(
p => constructorParameterElements.Select(c2 => c2.Name).
Contains(p)));
if (constructor == null)
{
throw new Exception("Constructor yakalanamadı!");
}
var instance = constructor.Invoke(parameters);
return((T)instance);
}
private void CreateTabControl(TypeConfigurationCollection configs, SqlExerciseItem item, TabPage tab)
{
tab.Controls.Clear();
try
{
if (configs.ContainsKey(item.Name))
{
TypeConfigurationElement typeElement = configs[item.Name];
UserControl uc = typeElement.CreateInstance() as UserControl;
if (uc != null)
{
tab.Controls.Clear();
uc.Dock = DockStyle.Fill;
tab.Controls.Add(uc);
}
else
{
tabControl1.TabPages.Remove(tab);
}
}
}
catch (Exception ex)
{
MessageBox.Show(string.Format("加载扩展配置控件失败，异常信息：{0}", ex.Message));
//移除扩展配置项
tabControl1.TabPages.Remove(tab);
}
}
/// <summary>
/// 得到执行器的工厂类
/// </summary>
/// <returns></returns>
public IArchiveExecutorFactory GetFactory()
{
TypeConfigurationElement elem = Factories["archiveExecutor"];
ExceptionHelper.FalseThrow(elem != null, "没有在配置节archiveSettings中配置archiveExecutor的插件");
return((IArchiveExecutorFactory)elem.CreateInstance());
}
public IWfAction GetAction(string actionName)
{
TypeConfigurationElement actionConfig = Actions[actionName];
(actionConfig != null).FalseThrow <SettingsPropertyNotFoundException>("不能在actionSettings中找到名称为{0}的Action", actionName);
return(actionConfig.CreateInstance() as IWfAction);
}
private T GetTypeInstance <T>(string factoryName)
{
factoryName.CheckStringIsNullOrEmpty("factoryName");
TypeConfigurationElement factoryElement = (TypeConfigurationElement)TypeFactories[factoryName];
factoryElement.NullCheck <SystemSupportException>("不能在配置节workflowSettings/typeFactories找到{0}的配置项", factoryName);
return((T)factoryElement.CreateInstance());
}
/// <summary>
/// 找到指定key的类型配置，并且创建指定类型的实例
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="autoThrow">是否自动抛出异常</param>
/// <returns></returns>
public T CheckAndGetInstance <T>(string key, bool autoThrow = true) where T : class
{
TypeConfigurationElement element = this.CheckAndGet(key, autoThrow);
T instance = default(T);
if (element != null)
{
instance = (T)element.CreateInstance();
}
return(instance);
}
public TabPageTag(TypeConfigurationElement desp)
{
this.controlDesp = desp;
}
public TabPageTag(TypeConfigurationElement desp)
{
this.controlDesp = desp;
}
