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实现了拖拽式设置方法调用顺序、方法入参参数来源

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This commit is contained in:
fengjiayi
2024-10-24 23:32:43 +08:00
parent 0666f0b2c1
commit 6f26d303e4
43 changed files with 2282 additions and 763 deletions
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387
WorkBench/MainWindow.xaml.cs
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@@ -5,9 +5,11 @@ using Serein.Library.Api;
using Serein.Library.Utils;
using Serein.Library.Utils.SereinExpression;
using Serein.NodeFlow.Tool;
using Serein.Workbench.Node;
using Serein.Workbench.Node.View;
using Serein.Workbench.Node.ViewModel;
using Serein.Workbench.Themes;
using System;
using System.IO;
using System.Windows;
using System.Windows.Controls;
@@ -118,11 +120,11 @@ namespace Serein.Workbench
/// <summary>
/// 当前正在绘制的连接线
/// </summary>
private Line? currentLine;
//private Line? currentLine;
/// <summary>
/// 当前正在绘制的真假分支属性
/// </summary>
private ConnectionType currentConnectionType;
private ConnectionInvokeType currentConnectionType;
/// <summary>
@@ -229,7 +231,6 @@ namespace Serein.Workbench
#region 窗体加载方法
private void Window_Loaded(object sender, RoutedEventArgs e)
{
@@ -250,7 +251,7 @@ namespace Serein.Workbench
InitializeCanvas(project.Basic.Canvas.Width, project.Basic.Canvas.Height);// 设置画布大小
foreach (var connection in Connections)
{
connection.AddOrRefreshLine(); // 窗体完成加载后试图刷新所有连接线
connection.RefreshLine(); // 窗体完成加载后试图刷新所有连接线
}
var canvasData = project.Basic.Canvas;
@@ -358,44 +359,145 @@ namespace Serein.Workbench
{
string fromNodeGuid = eventArgs.FromNodeGuid;
string toNodeGuid = eventArgs.ToNodeGuid;
if (!TryGetControl(fromNodeGuid, out var fromNode)
|| !TryGetControl(toNodeGuid, out var toNode))
if (!TryGetControl(fromNodeGuid, out var fromNodeControl)
|| !TryGetControl(toNodeGuid, out var toNodeControl))
{
return;
}
ConnectionType connectionType = eventArgs.ConnectionType;
if (eventArgs.ChangeType == NodeConnectChangeEventArgs.ConnectChangeType.Create) // 添加连接
if (eventArgs.JunctionOfConnectionType == JunctionOfConnectionType.Invoke)
{
// 添加连接
var connection = new ConnectionControl(EnvDecorator, FlowChartCanvas, connectionType, fromNode, toNode);
if (toNode is FlipflopNodeControl flipflopControl
&& flipflopControl?.ViewModel?.NodeModel is NodeModelBase nodeModel) // 某个节点连接到了触发器，尝试从全局触发器视图中移除该触发器
#region 创建/删除节点之间的调用关系
ConnectionInvokeType connectionType = eventArgs.ConnectionInvokeType;
if (eventArgs.ChangeType == NodeConnectChangeEventArgs.ConnectChangeType.Create) // 添加连接
{
NodeTreeViewer.RemoteGlobalFlipFlop(nodeModel); // 从全局触发器树树视图中移除
if (fromNodeControl is not INodeJunction IFormJunction || toNodeControl is not INodeJunction IToJunction)
{
Console.WriteLine("非预期的情况");
return;
}
JunctionControlBase startJunction = IFormJunction.NextStepJunction;
JunctionControlBase endJunction = IToJunction.ExecuteJunction;
// 添加连接
var connection = new ConnectionControl(
FlowChartCanvas,
connectionType,
startJunction,
endJunction,
() => EnvDecorator.RemoveConnectAsync(fromNodeGuid, toNodeGuid, connectionType)
);
if (toNodeControl is FlipflopNodeControl flipflopControl
&& flipflopControl?.ViewModel?.NodeModel is NodeModelBase nodeModel) // 某个节点连接到了触发器，尝试从全局触发器视图中移除该触发器
{
NodeTreeViewer.RemoteGlobalFlipFlop(nodeModel); // 从全局触发器树树视图中移除
}
connection.RefreshLine(); // 添加贝塞尔曲线显示
Connections.Add(connection);
fromNodeControl.AddCnnection(connection);
toNodeControl.AddCnnection(connection);
EndConnection();
}
connection.InvalidateVisual(); // 添加贝塞尔曲线显示
Connections.Add(connection);
EndConnection();
else if (eventArgs.ChangeType == NodeConnectChangeEventArgs.ConnectChangeType.Remote) // 移除连接
{
// 需要移除连接
var removeConnections = Connections.Where(c => c.Start.MyNode.Guid.Equals(fromNodeGuid)
&& c.End.MyNode.Guid.Equals(toNodeGuid))
.ToList();
foreach (var connection in removeConnections)
{
connection.DeleteConnection();
Connections.Remove(connection);
fromNodeControl.RemoveCnnection(connection);
toNodeControl.RemoveCnnection(connection);
if(NodeControls.TryGetValue(connection.End.MyNode.Guid, out var control))
{
JudgmentFlipFlopNode(control); // 连接关系变更时判断
}
}
}
#endregion
}
else if (eventArgs.ChangeType == NodeConnectChangeEventArgs.ConnectChangeType.Remote) // 移除连接
else
{
// 需要移除连接
var removeConnections = Connections.Where(c => c.Start.ViewModel.NodeModel.Guid.Equals(fromNodeGuid)
&& c.End.ViewModel.NodeModel.Guid.Equals(toNodeGuid))
.ToList();
foreach (var connection in removeConnections)
#region 创建/删除节点之间的参数传递关系
ConnectionArgSourceType connectionArgSourceType = eventArgs.ConnectionArgSourceType;
if (eventArgs.ChangeType == NodeConnectChangeEventArgs.ConnectChangeType.Create) // 添加连接
{
connection.RemoveFromCanvas();
Connections.Remove(connection);
JudgmentFlipFlopNode(connection.End); // 连接关系变更时判断
if (fromNodeControl is not INodeJunction IFormJunction || toNodeControl is not INodeJunction IToJunction)
{
Console.WriteLine("非预期的情况");
return;
}
JunctionControlBase startJunction = eventArgs.ConnectionArgSourceType switch
{
ConnectionArgSourceType.GetPreviousNodeData => IFormJunction.ExecuteJunction, // 自身节点
ConnectionArgSourceType.GetOtherNodeData => IFormJunction.ReturnDataJunction, // 其它节点的返回值控制点
ConnectionArgSourceType.GetOtherNodeDataOfInvoke => IFormJunction.ReturnDataJunction, // 其它节点的返回值控制点
_ => throw new Exception("窗体事件 FlowEnvironment_NodeConnectChangeEvemt 创建/删除节点之间的参数传递关系 JunctionControlBase 枚举值错误 。非预期的枚举值。") // 应该不会触发
};
JunctionControlBase endJunction = IToJunction.ArgDataJunction[eventArgs.ArgIndex];
LineType lineType = LineType.Bezier;
if(eventArgs.ConnectionArgSourceType == ConnectionArgSourceType.GetPreviousNodeData)
{
lineType = LineType.Semicircle;
}
// 添加连接
var connection = new ConnectionControl(
lineType,
FlowChartCanvas,
eventArgs.ArgIndex,
eventArgs.ConnectionArgSourceType,
startJunction,
endJunction,
() => EnvDecorator.RemoveConnectAsync(fromNodeGuid, toNodeGuid, 0)
);
if (toNodeControl is FlipflopNodeControl flipflopControl
&& flipflopControl?.ViewModel?.NodeModel is NodeModelBase nodeModel) // 某个节点连接到了触发器，尝试从全局触发器视图中移除该触发器
{
NodeTreeViewer.RemoteGlobalFlipFlop(nodeModel); // 从全局触发器树树视图中移除
}
connection.RefreshLine(); // 添加贝塞尔曲线显示
Connections.Add(connection);
fromNodeControl.AddCnnection(connection);
toNodeControl.AddCnnection(connection);
EndConnection();
}
else if (eventArgs.ChangeType == NodeConnectChangeEventArgs.ConnectChangeType.Remote) // 移除连接
{
// 需要移除连接
var removeConnections = Connections.Where(c => c.Start.MyNode.Guid.Equals(fromNodeGuid)
&& c.End.MyNode.Guid.Equals(toNodeGuid))
.ToList();
foreach (var connection in removeConnections)
{
connection.DeleteConnection();
Connections.Remove(connection);
fromNodeControl.RemoveCnnection(connection);
toNodeControl.RemoveCnnection(connection);
if (NodeControls.TryGetValue(connection.End.MyNode.Guid, out var control))
{
JudgmentFlipFlopNode(control); // 连接关系变更时判断
}
}
}
#endregion
}
@@ -434,6 +536,7 @@ namespace Serein.Workbench
}
FlowChartCanvas.Children.Remove(nodeControl);
nodeControl.RemoveAllConection();
NodeControls.Remove(nodeControl.ViewModel.NodeModel.Guid);
}
@@ -724,7 +827,7 @@ namespace Serein.Workbench
private void FlowEnvironment_OnNodeMoved(NodeMovedEventArgs eventArgs)
{
if (!TryGetControl(eventArgs.NodeGuid, out var nodeControl)) return;
UpdateConnections(nodeControl);
nodeControl.UpdateLocationConnections();
//var newLeft = eventArgs.X;
//var newTop = eventArgs.Y;
@@ -859,35 +962,34 @@ namespace Serein.Workbench
}
/// <summary>
/// 开始创建连接 True线 操作，设置起始块和绘制连接线。
/// </summary>
private void StartConnection(NodeControlBase startNodeControl, ConnectionType connectionType)
{
var tf = Connections.FirstOrDefault(it => it.Start == startNodeControl)?.Type;
IsConnecting = true;
currentConnectionType = connectionType;
startConnectNodeControl = startNodeControl;
//private void StartConnection(NodeControlBase startNodeControl, ConnectionInvokeType connectionType)
//{
// var tf = Connections.FirstOrDefault(it => it.Start.MyNode.Guid == startNodeControl.ViewModel.NodeModel.Guid)?.Type;
// IsConnecting = true;
// currentConnectionType = connectionType;
// startConnectNodeControl = startNodeControl;
// 确保起点和终点位置的正确顺序
currentLine = new Line
{
Stroke = connectionType == ConnectionType.IsSucceed ? new SolidColorBrush((Color)ColorConverter.ConvertFromString("#04FC10"))
: connectionType == ConnectionType.IsFail ? new SolidColorBrush((Color)ColorConverter.ConvertFromString("#F18905"))
: connectionType == ConnectionType.IsError ? new SolidColorBrush((Color)ColorConverter.ConvertFromString("#AB616B"))
: new SolidColorBrush((Color)ColorConverter.ConvertFromString("#4A82E4")),
StrokeDashArray = new DoubleCollection([2]),
StrokeThickness = 2,
X1 = Canvas.GetLeft(startConnectNodeControl) + startConnectNodeControl.ActualWidth / 2,
Y1 = Canvas.GetTop(startConnectNodeControl) + startConnectNodeControl.ActualHeight / 2,
X2 = Canvas.GetLeft(startConnectNodeControl) + startConnectNodeControl.ActualWidth / 2, // 初始时终点与起点重合
Y2 = Canvas.GetTop(startConnectNodeControl) + startConnectNodeControl.ActualHeight / 2,
};
// // 确保起点和终点位置的正确顺序
// currentLine = new Line
// {
// Stroke = connectionType == ConnectionInvokeType.IsSucceed ? new SolidColorBrush((Color)ColorConverter.ConvertFromString("#04FC10"))
// : connectionType == ConnectionInvokeType.IsFail ? new SolidColorBrush((Color)ColorConverter.ConvertFromString("#F18905"))
// : connectionType == ConnectionInvokeType.IsError ? new SolidColorBrush((Color)ColorConverter.ConvertFromString("#AB616B"))
// : new SolidColorBrush((Color)ColorConverter.ConvertFromString("#4A82E4")),
// StrokeDashArray = new DoubleCollection([2]),
// StrokeThickness = 2,
// X1 = Canvas.GetLeft(startConnectNodeControl) + startConnectNodeControl.ActualWidth / 2,
// Y1 = Canvas.GetTop(startConnectNodeControl) + startConnectNodeControl.ActualHeight / 2,
// X2 = Canvas.GetLeft(startConnectNodeControl) + startConnectNodeControl.ActualWidth / 2, // 初始时终点与起点重合
// Y2 = Canvas.GetTop(startConnectNodeControl) + startConnectNodeControl.ActualHeight / 2,
// };
FlowChartCanvas.Children.Add(currentLine);
this.KeyDown += MainWindow_KeyDown;
}
// FlowChartCanvas.Children.Add(currentLine);
// this.KeyDown += MainWindow_KeyDown;
//}
#endregion
@@ -963,10 +1065,10 @@ namespace Serein.Workbench
contextMenu.Items.Add(CreateMenuItem("设为起点", (s, e) => EnvDecorator.SetStartNode(nodeGuid)));
contextMenu.Items.Add(CreateMenuItem("删除", (s, e) => EnvDecorator.RemoveNodeAsync(nodeGuid)));
contextMenu.Items.Add(CreateMenuItem("添加 真分支", (s, e) => StartConnection(nodeControl, ConnectionType.IsSucceed)));
contextMenu.Items.Add(CreateMenuItem("添加 假分支", (s, e) => StartConnection(nodeControl, ConnectionType.IsFail)));
contextMenu.Items.Add(CreateMenuItem("添加 异常分支", (s, e) => StartConnection(nodeControl, ConnectionType.IsError)));
contextMenu.Items.Add(CreateMenuItem("添加 上游分支", (s, e) => StartConnection(nodeControl, ConnectionType.Upstream)));
//contextMenu.Items.Add(CreateMenuItem("添加 真分支", (s, e) => StartConnection(nodeControl, ConnectionInvokeType.IsSucceed)));
//contextMenu.Items.Add(CreateMenuItem("添加 假分支", (s, e) => StartConnection(nodeControl, ConnectionInvokeType.IsFail)));
//contextMenu.Items.Add(CreateMenuItem("添加 异常分支", (s, e) => StartConnection(nodeControl, ConnectionInvokeType.IsError)));
//contextMenu.Items.Add(CreateMenuItem("添加 上游分支", (s, e) => StartConnection(nodeControl, ConnectionInvokeType.Upstream)));
@@ -1028,21 +1130,6 @@ namespace Serein.Workbench
Console.WriteLine(ex);
}
}
//private void DisplayFlowDataTreeViewer(object @object)
//{
// try
// {
// var typeViewerWindow = new ViewObjectViewerWindow();
// typeViewerWindow.LoadObjectInformation(@object);
// typeViewerWindow.Show();
// }
// catch (Exception ex)
// {
// Console.WriteLine(ex);
// }
//}
#endregion
#region 拖拽DLL文件到左侧功能区，加载相关节点清单
@@ -1090,30 +1177,34 @@ namespace Serein.Workbench
private void FlowChartCanvas_MouseMove(object sender, MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed && GlobalJunctionData.MyGlobalData is not null)
if (e.LeftButton == MouseButtonState.Pressed && GlobalJunctionData.MyGlobalConnectingData is not null)
{
// 正在连接节点
var virtualLine = GlobalJunctionData.MyGlobalData.VirtualLine;
var controlPointPosition = GlobalJunctionData.MyGlobalData.StartPoint;
//var controlPointPosition = GlobalJunctionData.MyGlobalConnectingData.StartPoint;
var currentPoint = e.GetPosition(FlowChartCanvas);
virtualLine.VirtualLine.X1 = controlPointPosition.X;
virtualLine.VirtualLine.Y1 = controlPointPosition.Y;
virtualLine.VirtualLine.X2 = currentPoint.X;
virtualLine.VirtualLine.Y2 = currentPoint.Y;
GlobalJunctionData.MyGlobalConnectingData.UpdatePoint(currentPoint);
//virtualLine.VirtualLine.UpdatePoints(currentPoint);
//virtualLine.VirtualLine.X1 = controlPointPosition.X;
//virtualLine.VirtualLine.Y1 = controlPointPosition.Y;
//virtualLine.VirtualLine.X2 = currentPoint.X;
//virtualLine.VirtualLine.Y2 = currentPoint.Y;
return;
}
if (IsConnecting) // 正在连接节点
{
Point position = e.GetPosition(FlowChartCanvas);
if (currentLine is null || startConnectNodeControl is null)
{
return;
}
currentLine.X1 = Canvas.GetLeft(startConnectNodeControl) + startConnectNodeControl.ActualWidth / 2;
currentLine.Y1 = Canvas.GetTop(startConnectNodeControl) + startConnectNodeControl.ActualHeight / 2;
currentLine.X2 = position.X;
currentLine.Y2 = position.Y;
}
//if (IsConnecting) // 正在连接节点
//{
// Point position = e.GetPosition(FlowChartCanvas);
// if (currentLine is null || startConnectNodeControl is null)
// {
// return;
// }
// currentLine.X1 = Canvas.GetLeft(startConnectNodeControl) + startConnectNodeControl.ActualWidth / 2;
// currentLine.Y1 = Canvas.GetTop(startConnectNodeControl) + startConnectNodeControl.ActualHeight / 2;
// currentLine.X2 = position.X;
// currentLine.Y2 = position.Y;
//}
if (IsCanvasDragging && e.MiddleButton == MouseButtonState.Pressed) // 正在移动画布（按住中键）
{
@@ -1128,7 +1219,7 @@ namespace Serein.Workbench
foreach (var line in Connections)
{
line.AddOrRefreshLine(); // 画布移动时刷新所有连接线
line.RefreshLine(); // 画布移动时刷新所有连接线
}
}
@@ -1288,10 +1379,10 @@ namespace Serein.Workbench
/// </summary>
private void Block_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (GlobalJunctionData.IsCreatingConnection)
{
return;
}
//if (GlobalJunctionData.IsCreatingConnection)
//{
// return;
//}
if(sender is NodeControlBase nodeControl)
{
ChangeViewerObjOfNode(nodeControl);
@@ -1302,6 +1393,7 @@ namespace Serein.Workbench
e.Handled = true; // 防止事件传播影响其他控件
}
}
/// <summary>
/// 控件的鼠标移动事件，根据鼠标拖动更新控件的位置。批量移动计算移动逻辑。
/// </summary>
@@ -1353,7 +1445,7 @@ namespace Serein.Workbench
// 更新节点之间线的连接位置
foreach (var nodeControl in selectNodeControls)
{
UpdateConnections(nodeControl);
nodeControl.UpdateLocationConnections();
}
}
else
@@ -1367,7 +1459,7 @@ namespace Serein.Workbench
double newLeft = Canvas.GetLeft(nodeControl) + deltaX; // 新的左边距
double newTop = Canvas.GetTop(nodeControl) + deltaY; // 新的上边距
this.EnvDecorator.MoveNode(nodeControl.ViewModel.NodeModel.Guid, newLeft, newTop); // 移动节点
UpdateConnections(nodeControl);
nodeControl.UpdateLocationConnections();
}
startControlDragPoint = currentPosition; // 更新起始点位置
}
@@ -1429,18 +1521,17 @@ namespace Serein.Workbench
}
if (IsConnecting)
{
var formNodeGuid = startConnectNodeControl?.ViewModel.NodeModel.Guid;
var toNodeGuid = (sender as NodeControlBase)?.ViewModel.NodeModel.Guid;
if (string.IsNullOrEmpty(formNodeGuid) || string.IsNullOrEmpty(toNodeGuid))
{
return;
}
EnvDecorator.ConnectNodeAsync(formNodeGuid, toNodeGuid, currentConnectionType);
}
GlobalJunctionData.OK();
//if (IsConnecting)
//{
// var formNodeGuid = startConnectNodeControl?.ViewModel.NodeModel.Guid;
// var toNodeGuid = (sender as NodeControlBase)?.ViewModel.NodeModel.Guid;
// if (string.IsNullOrEmpty(formNodeGuid) || string.IsNullOrEmpty(toNodeGuid))
// {
// return;
// }
// EnvDecorator.ConnectNodeAsync(formNodeGuid, toNodeGuid,0,0, currentConnectionType);
//}
//GlobalJunctionData.OK();
}
/// <summary>
@@ -1463,28 +1554,30 @@ namespace Serein.Workbench
IsConnecting = false;
startConnectNodeControl = null;
// 移除虚线
if (currentLine != null)
{
FlowChartCanvas.Children.Remove(currentLine);
currentLine = null;
}
//if (currentLine != null)
//{
// FlowChartCanvas.Children.Remove(currentLine);
// currentLine = null;
//}
}
/// <summary>
/// 更新与指定控件相关的所有连接的位置。
/// </summary>
private void UpdateConnections(NodeControlBase nodeControl)
{
foreach (var connection in Connections)
{
if (connection.Start == nodeControl || connection.End == nodeControl)
{
connection.AddOrRefreshLine(); // 主动更新某个控件相关的所有连接线
//connection.RemoveFromCanvas();
//BezierLineDrawer.UpdateBezierLine(FlowChartCanvas, connection.Start, connection.End, connection.BezierPath, connection.ArrowPath);
}
}
}
//private void UpdateConnections(NodeControlBase nodeControl)
//{
// nodeControl.UpdateLocationConnections();
// //foreach (var connection in Connections)
// //{
// // if (connection.Start.MyNode.Guid == nodeControl.ViewModel.NodeModel.Guid
// // || connection.End.MyNode.Guid == nodeControl.ViewModel.NodeModel.Guid)
// // {
// // connection.RefreshLine(); // 主动更新某个控件相关的所有连接线
// // //connection.RemoveFromCanvas();
// // //BezierLineDrawer.UpdateBezierLine(FlowChartCanvas, connection.Start, connection.End, connection.BezierPath, connection.ArrowPath);
// // }
// //}
//}
#endregion
#region 拖动画布实现缩放平移效果
@@ -1688,7 +1781,7 @@ namespace Serein.Workbench
/// <param name="e"></param>
private void FlowChartCanvas_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (GlobalJunctionData.IsCreatingConnection)
if (GlobalJunctionData.MyGlobalConnectingData is not null)
{
return;
}
@@ -1724,7 +1817,7 @@ namespace Serein.Workbench
}
/// <summary>
/// 在画布中释放鼠标按下，结束选取状态
/// 在画布中释放鼠标按下，结束选取状态 / 停止创建连线，尝试连接节点
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
@@ -1744,26 +1837,36 @@ namespace Serein.Workbench
}
// 创建连线
if (GlobalJunctionData.MyGlobalData is not null)
if (GlobalJunctionData.MyGlobalConnectingData is not null)
{
var myData = GlobalJunctionData.MyGlobalData;
var myData = GlobalJunctionData.MyGlobalConnectingData;
GlobalJunctionData.OK();
var canvas = this.FlowChartCanvas;
if (GlobalJunctionData.CanCreate)
if (myData.IsCanConnected)
{
//var startPoint = myDataType.StartPoint;
var currentendPoint = e.GetPosition(canvas); // 当前鼠标落点
var changingJunctionPosition = myData.ChangingJunction.TranslatePoint(new Point(0, 0), canvas);
var changingJunctionRect = new Rect(changingJunctionPosition, new Size(myData.ChangingJunction.Width, myData.ChangingJunction.Height));
var changingJunctionPosition = myData.CurrentJunction.TranslatePoint(new Point(0, 0), canvas);
var changingJunctionRect = new Rect(changingJunctionPosition, new Size(myData.CurrentJunction.Width, myData.CurrentJunction.Height));
if (changingJunctionRect.Contains(currentendPoint))
if (changingJunctionRect.Contains(currentendPoint)) // 可以创建连接
{
this.EnvDecorator.ConnectNodeAsync(myData.StartJunction.NodeGuid, myData.ChangingJunction.NodeGuid, ConnectionType.IsSucceed);
}
var argIndex = 0;
if(myData.StartJunction is ArgJunctionControl argJunction1)
{
argIndex = argJunction1.ArgIndex;
}
else if (myData.CurrentJunction is ArgJunctionControl argJunction2)
{
argIndex = argJunction2.ArgIndex;
}
this.EnvDecorator.ConnectNodeAsync(myData.StartJunction.MyNode.Guid, myData.CurrentJunction.MyNode.Guid,
myData.StartJunction.JunctionType,
myData.CurrentJunction.JunctionType,
ConnectionInvokeType.IsSucceed,argIndex);
}
}
GlobalJunctionData.OK();
}
e.Handled = true;
@@ -2628,7 +2731,7 @@ namespace Serein.Workbench
FlowChartCanvas.Children.Clear();
Connections.Clear();
NodeControls.Clear();
currentLine = null;
//currentLine = null;
startConnectNodeControl = null;
MessageBox.Show("所有DLL已卸载。", "信息", MessageBoxButton.OK, MessageBoxImage.Information);
}