void showFlowchar(WFNode node)
{
this.Background = System.Windows.Media.Brushes.Red;
Canvas.SetLeft(this, node.ShapeSize.x);
Canvas.SetTop(this, node.ShapeSize.y);
this.Width = node.ShapeSize.width;
this.Height = node.ShapeSize.height;
this.displayName.Text = node.DisplayName;
}
/// <summary>
/// 已完成当前节点工作,将流程实例推入下一个节点
/// 1,判断下一个节点的类型
/// 2.如果是处理节点,则创建实例节点,分配处理人
/// 3.如果是分支节点,则创建实例节点,调用处理该节点
/// 4.如果是结束节点,创建结束节点,调用处理该节点
/// </summary>
/// <param name="instID">流程实例ID</param>
/// <param name="nextNodeID">下一个节点ID</param>
/// <param name="ctx">HTTP上下文</param>
private void entry(string instID, string nextNodeID, HttpContextBase ctx)
{
using (MyDB mydb = new MyDB())
{
WFNode next = mydb.WFNodes.Find(nextNodeID);
WFInst inst = mydb.WFInsts.Find(instID);
if (next is WFNodeHandle)
{
WFInstNode inode = new WFInstNode
{
EntryTime = DateTime.Now,
State = "处理中",
WFNode = next,
WFInst = inst,
WFInstNodeHandlers = ((WFNodeHandle)next).Subjects.OfType <User>().Select(a => new WFInstNodeHandler {
Handler = a
}).ToArray()
};
mydb.WFInstNodes.Add(inode);
mydb.SaveChanges();
}
else if (next is WFNodeXORSplit)
{
//WFNodeXORSplit Split = next as WFNodeXORSplit;
WFInstNode inode = new WFInstNode
{
EntryTime = DateTime.Now,
State = "处理中",
WFNode = next,
WFInst = inst
};
mydb.WFInstNodes.Add(inode);
mydb.SaveChanges();
this.process(inode.ID, this.HttpContext);
}
else if (next is WFNodeFinish)
{
//WFNodeXORSplit Split = next as WFNodeXORSplit;
WFInstNode inode = new WFInstNode
{
EntryTime = DateTime.Now,
State = "处理中",
WFNode = next,
WFInst = inst
};
mydb.WFInstNodes.Add(inode);
mydb.SaveChanges();
this.process(inode.ID, this.HttpContext);
}
else
{
}
}
}
/// <summary>
/// 获取流程节点信息
/// </summary>
/// <param name="nodeId">节点id</param>
public static void RetrieveWFNode(int nodeId)
{
try
{
CurrentNode = new WFNode(nodeId);
}
catch (Exception ex)
{
throw new Exception("获取流程节点时出现错误", ex);
}
}
/// <summary>
/// 登陆
/// </summary>
/// <param name="emp"></param>
public static void Sigin(Emp emp)
{
isLogin = true;
No = emp.No;
Name = emp.Name;
FK_Dept = emp.FK_Dept;
DoType = "";
CurrentNode = null; //置空
GetFtpInfomation();
WriterIt();
}
public ActionResult deleteNode()
{
string templateId = Request.Form["templateId"];
string nodeID = Request.Form["nodeID"];
if (Session[templateId] != null)
{
MyDB mydb = Session[templateId] as MyDB;
WFNode node = mydb.WFNodes.Find(nodeID);
mydb.WFNodes.Remove(node);
return(Json(new { success = true }));
}
return(Json(new { success = false }));
}
public ActionResult modifyTemplate()
{
string id = Request.Params["templateId"];
string mode = Request.Params["mode"];
if (Session[id] == null)
{
Session[id] = new MyDB();
}
MyDB mydb = Session[id] as MyDB;
switch (mode)
{
case "select":
{
if (Request.Params["nodeID"] != null)
{
string nodeID = Request.Params["nodeID"];
int x = int.Parse(Request.Params["x"]);
int y = int.Parse(Request.Params["y"]);
WFNode node = mydb.WFNodes.Find(nodeID);
node.PositionX = x;
node.PositionY = y;
}
else if (Request.Params["lineID"] != null)
{
string LineID = Request.Params["lineID"];
if (string.IsNullOrEmpty(Request.Params["x"]) || string.IsNullOrEmpty(Request.Params["y"]))
{
WFNodeAction action = mydb.WFNodeActions.Find(LineID);
if (action != null)
{
action.PositionX = null;
action.PositionY = null;
}
WFNodeExpression expression = mydb.WFNodeExpressions.Find(LineID);
if (expression != null)
{
expression.PositionX = null;
expression.PositionY = null;
}
}
else
{
int x = int.Parse(Request.Params["x"]);
int y = int.Parse(Request.Params["y"]);
WFNodeAction action = mydb.WFNodeActions.Find(LineID);
if (action != null)
{
action.PositionX = x;
action.PositionY = y;
}
WFNodeExpression expression = mydb.WFNodeExpressions.Find(LineID);
if (expression != null)
{
expression.PositionX = x;
expression.PositionY = y;
}
}
}
}
break;
case "move":
{
int x = int.Parse(Request.Params["x"]);
int y = int.Parse(Request.Params["y"]);
WFTemplate t = mydb.WFTemplates.Find(id);
t.OffsetX = x;
t.OffsetY = y;
}
break;
default:
break;
}
return(Json(new { success = true }));
}
//得到自定义流程图
public static FlowcharStruct getFlowcharStruct(string xaml)
{
char[] sp = { ',' };
char[] sl = { ' ' };
//(1)
FlowcharStruct flowcharStruct = new FlowcharStruct();
//(2)
DynamicActivity dynamicActivity = tool.activityByXaml(xaml) as DynamicActivity;
Activity activity = tool.getImplementation(dynamicActivity);
Flowchart flowchar = activity as Flowchart;
if (flowchar == null)
{
return(null);
}
//(3)=====================================
//(3.1)----------------------------------------------------------------------------------
flowcharStruct.beginNode.DisplayName = "开始";
flowcharStruct.beginNode.id = "begin";
//(3.1.1)
if (WorkflowViewStateService.GetViewState(flowchar)["ShapeLocation"] != null)
{
string ShapeLocation = WorkflowViewStateService.GetViewState(flowchar)["ShapeLocation"].ToString();
flowcharStruct.beginNode.ShapeSize.x = double.Parse(ShapeLocation.Split(sp)[0]);
flowcharStruct.beginNode.ShapeSize.y = double.Parse(ShapeLocation.Split(sp)[1]);
}
//(3.1.2)
if (WorkflowViewStateService.GetViewState(flowchar)["ShapeSize"] != null)
{
string ShapeSize = WorkflowViewStateService.GetViewState(flowchar)["ShapeSize"].ToString();
flowcharStruct.beginNode.ShapeSize.width = double.Parse(ShapeSize.Split(sp)[0]);
flowcharStruct.beginNode.ShapeSize.height = double.Parse(ShapeSize.Split(sp)[1]);
}
//(3.1.3)
if (WorkflowViewStateService.GetViewState(flowchar)["ConnectorLocation"] != null)
{
string ConnectorLocation = WorkflowViewStateService.GetViewState(flowchar)["ConnectorLocation"].ToString();
string[] points = ConnectorLocation.Split(sl);
WFLine oneline = new WFLine();
oneline.beginNodeID = flowchar.Id;
oneline.text = flowchar.DisplayName;
foreach (string item in points)
{
double x = double.Parse(item.Split(sp)[0]);
double y = double.Parse(item.Split(sp)[1]);
oneline.connectorPoint.Add(new WFPoint()
{
x = x, y = y
});
}
flowcharStruct.lineList.Add(oneline);
}
//(3.2)--------------------------------------------------------------------------------
foreach (FlowNode flowNode in flowchar.Nodes)
{
FlowStep flowStep = flowNode as FlowStep;
if (flowStep != null)
{
WFNode node = new WFNode();
node.DisplayName = flowStep.Action.DisplayName;
node.id = flowStep.Action.Id;
//(3.2.1)
if (WorkflowViewStateService.GetViewState(flowStep)["ShapeLocation"] != null)
{
string ShapeLocation = WorkflowViewStateService.GetViewState(flowStep)["ShapeLocation"].ToString();
node.ShapeSize.x = double.Parse(ShapeLocation.Split(sp)[0]);
node.ShapeSize.y = double.Parse(ShapeLocation.Split(sp)[1]);
}
//(3.2.2)
if (WorkflowViewStateService.GetViewState(flowStep)["ShapeSize"] != null)
{
string ShapeSize = WorkflowViewStateService.GetViewState(flowStep)["ShapeSize"].ToString();
node.ShapeSize.width = double.Parse(ShapeSize.Split(sp)[0]);
node.ShapeSize.height = double.Parse(ShapeSize.Split(sp)[1]);
}
//(3.2.3)
if (WorkflowViewStateService.GetViewState(flowStep).Count(p => p.Key == "ConnectorLocation") == 1)
{
string ConnectorLocation = WorkflowViewStateService.GetViewState(flowStep)["ConnectorLocation"].ToString();
string[] points = ConnectorLocation.Split(sl);
WFLine line = new WFLine();
line.beginNodeID = flowStep.Action.Id;
line.text = flowStep.Action.DisplayName;
foreach (string item in points)
{
double x = double.Parse(item.Split(sp)[0]);
double y = double.Parse(item.Split(sp)[1]);
line.connectorPoint.Add(new WFPoint()
{
x = x, y = y
});
}
flowcharStruct.lineList.Add(line);
}
flowcharStruct.nodeList.Add(node);
}
}
//(3.3)-------------------------------------------------------------
foreach (FlowNode flowNode in flowchar.Nodes)
{
FlowSwitch <string> flowSwitch = flowNode as FlowSwitch <string>;
if (flowSwitch != null)
{
WFNode node = new WFNode();
node.DisplayName = flowSwitch.Expression.DisplayName;
node.id = flowSwitch.Expression.Id;
//(3.3.1)
if (WorkflowViewStateService.GetViewState(flowSwitch)["ShapeLocation"] != null)
{
string ShapeLocation = WorkflowViewStateService.GetViewState(flowSwitch)["ShapeLocation"].ToString();
node.ShapeSize.x = double.Parse(ShapeLocation.Split(sp)[0]);
node.ShapeSize.y = double.Parse(ShapeLocation.Split(sp)[1]);
}
//(3.3.2)
if (WorkflowViewStateService.GetViewState(flowSwitch)["ShapeSize"] != null)
{
string ShapeSize = WorkflowViewStateService.GetViewState(flowSwitch)["ShapeSize"].ToString();
node.ShapeSize.width = double.Parse(ShapeSize.Split(sp)[0]);
node.ShapeSize.height = double.Parse(ShapeSize.Split(sp)[1]);
}
//(3.3.3)
if (WorkflowViewStateService.GetViewState(flowSwitch).Count(p => p.Key == "Default") == 1)
{
string ConnectorLocation = WorkflowViewStateService.GetViewState(flowSwitch)["Default"].ToString();
string[] points = ConnectorLocation.Split(sl);
WFLine line = new WFLine();
line.beginNodeID = flowSwitch.Expression.Id;
line.text = flowSwitch.Expression.DisplayName;
foreach (string item in points)
{
double x = double.Parse(item.Split(sp)[0]);
double y = double.Parse(item.Split(sp)[1]);
line.connectorPoint.Add(new WFPoint()
{
x = x, y = y
});
}
flowcharStruct.lineList.Add(line);
}
//(3.3.4)
foreach (var v in flowSwitch.Cases)
{
FlowNode next = v.Value;
Console.WriteLine(v.Key);
string caseValue = v.Key + "Connector";
if (WorkflowViewStateService.GetViewState(flowSwitch).Count(p => p.Key == caseValue) == 1)
{
string ConnectorLocation = WorkflowViewStateService.GetViewState(flowSwitch)[caseValue].ToString();
string[] points = ConnectorLocation.Split(sl);
WFLine line = new WFLine();
line.beginNodeID = flowSwitch.Expression.Id;
line.text = flowSwitch.Expression.DisplayName;
foreach (string item in points)
{
double x = double.Parse(item.Split(sp)[0]);
double y = double.Parse(item.Split(sp)[1]);
line.connectorPoint.Add(new WFPoint()
{
x = x, y = y
});
}
flowcharStruct.lineList.Add(line);
}
}
flowcharStruct.nodeList.Add(node);
}
}
return(flowcharStruct);
}//end
/// <summary>
/// 处理当前流程实例节点
/// 1.判断节点类型
/// 2.如果是处理节点,则取活动CODE,找到下一个节点,调用推入
/// 3.如果是分支节点,则计算表达式,找到下一个节点,调用推入
/// 4.如果是结束节点,完成结束必须的工作
/// </summary>
/// <param name="instNodeID">当前流程实例节点ID</param>
/// <param name="ctx">HTTP上下文</param>
private void process(string instNodeID, HttpContextBase ctx)
{
using (MyDB mydb = new MyDB())
{
WFInstNode current = mydb.WFInstNodes.Find(instNodeID);
WFInst inst = current.WFInst;
if (current.WFNode is WFNodeHandle)
{
string actionID = Request.Form["actionID"];
string UserID = ctx.User.Identity.Name;
WFNodeAction action = mydb.WFNodeActions.Find(actionID);
WFNode next = action.NextNode;
if (next != null)
{
Type t = getType(inst.WFTemplate);
PropertyInfo[] PropertyInfos = t.GetProperties().ToArray();
foreach (string key in Request.Form.Keys)
{
PropertyInfo pi = t.GetProperty(key);
if (pi != null)
{
DisplayAttribute[] attrs = pi.GetCustomAttributes(typeof(DisplayAttribute), true) as DisplayAttribute[];
if (attrs.Length > 0)
{
pi.SetValue(
inst,
//Request.Form[key],
Convert.ChangeType(Request.Form[key], pi.PropertyType.UnderlyingSystemType),
null);
}
}
}
// 当前节点处理完成,准备转入下一节点
current.State = "已处理";
current.LeaveTime = DateTime.Now;
current.Summary = string.Format("节点名称:{0},处理人:{1},动作:{2}", current.WFNode.Name, mydb.Subjects.Find(UserID).Name, action.Name);
// 节点处理人
WFInstNodeHandler handler = current.WFInstNodeHandlers.First(h => h.Handler.ID.Equals(UserID));
handler.HandleTime = DateTime.Now;
handler.Opinion = action.Name;
handler.State = "已处理";
// 其他的处理人置为失效
foreach (WFInstNodeHandler other in current.WFInstNodeHandlers.Where(h => !h.Handler.ID.Equals(UserID)))
{
handler.State = "已失效";
}
mydb.SaveChanges();
this.entry(inst.ID, next.ID, ctx);
return;
}
}
else if (current.WFNode is WFNodeXORSplit)
{
WFNodeXORSplit Split = current.WFNode as WFNodeXORSplit;
Type t = getType(inst.WFTemplate);
PropertyInfo[] PropertyInfos = t.GetProperties().ToArray();
IEnumerable <WFNodeExpression> exps = Split.WFNodeExpressions.OrderBy(exp => exp.OrderNO).Select(exp => exp);
foreach (WFNodeExpression exp in exps)
{
string expString = exp.Expression;
foreach (PropertyInfo pi in PropertyInfos)
{
DisplayAttribute[] attrs = pi.GetCustomAttributes(typeof(DisplayAttribute), true) as DisplayAttribute[];
if (attrs.Length > 0)
{
string Name = attrs[0].Name;
expString = expString.Replace(
string.Format("{{{0}}}", Name),
pi.Name
);
}
}
expString = string.Format("select count(*) as v from {2}s where ID=\"{0}\" and {1}", current.WFInst.ID, expString, inst.WFTemplate.BuizCode);
//int count = mydb.WFInsts.Where(expString).Count();
int count = mydb.Database.SqlQuery <int>(expString, new object[] { }).ToArray()[0];
if (count > 0)// 条件满足,短路,找下一节点
{
current.Summary = string.Format("节点名称:{0},满足条件:{1}", current.WFNode.Name, exp.Expression);
current.LeaveTime = DateTime.Now;
current.State = "已处理";
mydb.SaveChanges();
this.entry(inst.ID, exp.Next.ID, ctx);
return;
}
}
}
else if (current.WFNode is WFNodeFinish)
{
current.Summary = "流程结束";
current.LeaveTime = DateTime.Now;
current.State = "已处理";
inst.State = "已处理";
mydb.SaveChanges();
return;
}
else
{
}
}
}
public NodeControl(WFNode node)
{
InitializeComponent();
showFlowchar(node);
}
