/// <summary>根据字段查找指定ID的控件，采用反射字段的方法，避免遍历Controls引起子控件构造</summary>
/// <typeparam name="T"></typeparam>
/// <param name="control">容器</param>
/// <param name="id"></param>
/// <returns></returns>
public static T FindControlByField <T>(Control control, String id) where T : Control
{
if (control == null)
{
return(null);
}
FieldInfoX fix = null;
if (!String.IsNullOrEmpty(id))
{
fix = FieldInfoX.Create(control.GetType(), id);
}
else
{
Type t = typeof(T);
FieldInfo fi = control.GetType().GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic).FirstOrDefault(item => item.FieldType == t);
if (fi != null)
{
fix = FieldInfoX.Create(fi);
}
}
if (fix == null)
{
return(null);
}
return(fix.GetValue(control) as T);
}
static void ShowText(String txtName)
{
var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(typeof(Program).Namespace + "." + txtName);
var txt = stream.ToStr();
foreach (var item in txt.Split(new String[] { Environment.NewLine }, StringSplitOptions.None))
{
// 改变颜色
if (item.StartsWith("[Color:"))
{
var name = item.Substring("[Color:".Length);
name = name.TrimEnd(']');
var fix = FieldInfoX.Create(typeof(ConsoleColor), name);
if (fix != null)
{
Console.ForegroundColor = (ConsoleColor)fix.GetValue();
}
}
else if (item == "[Pause]")
{
Console.ReadKey(true);
}
else
{
Console.WriteLine(item);
}
}
}
/// <summary>复制DirEntry专属的字段</summary>
/// <param name="entry"></param>
internal void CopyFromDirEntry(ZipEntry entry)
{
Type type = this.GetType();
foreach (var item in dirMembers)
{
var fix = FieldInfoX.Create(type, item);
fix.SetValue(this, fix.GetValue(entry));
}
}
/// <summary>获取提供者工厂</summary>
/// <param name="assemblyFile"></param>
/// <param name="className"></param>
/// <returns></returns>
protected static DbProviderFactory GetProviderFactory(String assemblyFile, String className)
{
//反射实现获取数据库工厂
String file = assemblyFile;
if (!Runtime.IsWeb)
{
file = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, file);
}
else
{
file = Path.Combine(HttpRuntime.BinDirectory, file);
}
if (!File.Exists(file))
{
CheckAndDownload(file);
// 如果还没有，就写异常
if (!File.Exists(file))
{
throw new FileNotFoundException("缺少文件" + file + "！", file);
}
}
Assembly asm = Assembly.LoadFile(file);
if (asm == null)
{
return(null);
}
Type type = asm.GetType(className);
if (type == null)
{
return(null);
}
var field = FieldInfoX.Create(type, "Instance");
if (field == null)
{
return(Activator.CreateInstance(type) as DbProviderFactory);
}
return(field.GetValue(null) as DbProviderFactory);
}
/// <summary>在窗体中查询ToolTip</summary>
/// <returns></returns>
private ToolTip FindToolTipParentForm()
{
//在窗里中查找ToolTip实例
ToolTip r = null;
if (Container == null)
{
throw new Exception("Container 为空！");
}
//查找窗体
Control form = Container is Form ? Container : Container.FindForm();
if (form == null)
{
throw new Exception("ToolTip 父窗口查询失败！");
}
FieldInfo toolTipField = null;
FieldInfo[] fields = form.GetType().GetFields(BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static | BindingFlags.Instance);
if (fields != null && fields.Length > 0)
{
Type toolTip = typeof(System.Windows.Forms.ToolTip);
foreach (FieldInfo item in fields)
{
if (item.FieldType == toolTip)
{
toolTipField = item;
break;
}
}
}
if (toolTipField != null)
{
r = FieldInfoX.Create(toolTipField).GetValue(form) as ToolTip;
}
return(null);
}
protected void Page_Load(object sender, EventArgs e)
{
FieldInfoX fix = FieldInfoX.Create(Page.GetType(), "Manager");
if (fix != null)
{
IManagePage manager = fix.GetValue(Page) as IManagePage;
if (manager != null)
{
Title = manager.CurrentMenu.Name;
//Response.Write(Title);
Navigation = manager.Navigation;
}
}
bool IsShowToolBar = DmFramework.Web.WebHelper.RequestBool("SetToolBar");
if (!String.IsNullOrEmpty(Request["SetToolBar"]) && !IsShowToolBar)
{
SetToolBar(this, IsShowToolBar);
}
}
/// <summary>查找控件的事件</summary>
/// <param name="control"></param>
/// <param name="eventName"></param>
/// <returns></returns>
public static Delegate FindEventHandler(Control control, String eventName)
{
if (control == null)
{
return(null);
}
if (String.IsNullOrEmpty(eventName))
{
return(null);
}
var pix = PropertyInfoX.Create(control.GetType(), "Events");
if (pix == null)
{
return(null);
}
EventHandlerList list = pix.GetValue(control) as EventHandlerList;
if (list == null)
{
return(null);
}
var fix = FieldInfoX.Create(control.GetType(), eventName);
if (fix == null && !eventName.StartsWith("Event", StringComparison.Ordinal))
{
fix = FieldInfoX.Create(control.GetType(), "Event" + eventName);
}
if (fix == null)
{
return(null);
}
return(list[fix.GetValue(control)]);
}
Type GetItemType(String name)
{
if (String.IsNullOrEmpty(name) || EntityType == null)
{
return(null);
}
PropertyInfoX pi = PropertyInfoX.Create(EntityType, name);
if (pi != null)
{
return(pi.Type);
}
FieldInfoX fi = FieldInfoX.Create(EntityType, name);
if (fi != null)
{
return(fi.Type);
}
return(null);
}
/// <summary>在页面查找指定ID的控件，采用反射字段的方法，避免遍历Controls引起子控件构造</summary>
/// <typeparam name="T"></typeparam>
/// <param name="id"></param>
/// <returns></returns>
public static T FindControlInPage <T>(String id) where T : Control
{
if (HttpContext.Current == null)
{
return(null);
}
IHttpHandler handler = HttpContext.Current.Handler;
if (handler == null)
{
return(null);
}
FieldInfoX fix = null;
if (!String.IsNullOrEmpty(id))
{
fix = FieldInfoX.Create(handler.GetType(), id);
}
else
{
Type t = typeof(T);
FieldInfo fi = handler.GetType().GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic).FirstOrDefault(item => item.FieldType == t);
if (fi != null)
{
fix = FieldInfoX.Create(fi);
}
}
if (fix == null)
{
return(null);
}
return(fix.GetValue(handler) as T);
}