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Graph a Workflow Example (C#)

This example shows how to graph a workflow.

NOTE: If using the .NET Framework 4.0 primary interop assembly provided with SOLIDWORKS PDM Professional, see Using .NET Framework 4.0 in Stand-alone Applications.

//----------------------------------------------------------------------------
// Preconditions:
// 1. Start Microsoft Visual Studio 2010.
//    a. Click File > New > Project > Visual C# > Windows Forms Application.
//    b. Type PaintWorkflowGraph_CSharp in Name.
//    c. Click Browse and navigate to the folder where to create 
//       the project.
//    d. Click OK
//    e. Click Show All Files in the Solution Explorer toolbar and expand 
//       Form1.cs in the Solution Explorer.
//    f. Replace the code in Form1.cs with this code.
//    g. To create the form, replace the code in Form1.Designer.cs with this code.
// 2. Add EPDM.Interop.epdm.dll as a reference (right-click the project
//    name in the Solution Explorer, click Add Reference, click 
//    Assemblies > Framework in the left-side panel, browse to the top folder of 
//    your SOLIDWORKS PDM Professional installation, locate and click 
//    EPDM.Interop.epdm.dll, click Open, and click Add).
// 3. Add Microsoft.VisualBasic as a reference (click COM in the left-side panel, 
//    click Microsoft.VisualBasic, click Add, and click Close).

// 4. Right-click EPDM.Interop.epdm in References, click Properties, and set 
//    Embed Interop Types to False to handle methods that pass arrays of 
//    structures.
// 5. Click Debug > Start Debugging or press F5.
//
// Postconditions: 
// 1. Displays the Graph a workflow dialog box.
// 2. Maximize the dialog box for the workflow graph.

// 3. Select a vault view.
// 4. Click a workflow.

// 5. Click Graph workflow
// 6. Graphs the selected workflow in the dialog box.
// 7. Close the Graph a workflow dialog box.         
//----------------------------------------------------------------------------
 
//Form1.cs
 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using EPDM.Interop.epdm;
using Microsoft.VisualBasic;
 
namespace PaintWorkflowGraph_CSharp
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        IEdmVault5 vault1 = null;
        IEdmWorkflow6 wf;
        IEdmWorkflowMgr6 wfmgr;
        IEdmPos5 pos;
 
        public void Form1_Load(System.Object sender, System.EventArgs e)
        {
            try
            {
                vault1 = new EdmVault5();
                IEdmVault8 vault = (IEdmVault8)vault1;
                EdmViewInfo[] Views = null;
 
                vault.GetVaultViews(out Views, false);
                VaultsComboBox.Items.Clear();
                foreach (EdmViewInfo View in Views)
                {
                    VaultsComboBox.Items.Add(View.mbsVaultName);
                }
                if (VaultsComboBox.Items.Count > 0)
                {
                    VaultsComboBox.Text = (string)VaultsComboBox.Items[0];
                }
 
            }
            catch (System.Runtime.InteropServices.COMException ex)
            {
                MessageBox.Show("HRESULT = 0x" + ex.ErrorCode.ToString("X") + " " + ex.Message);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }
 
 
        public void GraphWorkflow_Click(System.Object sender, System.EventArgs e)
        {
            //Graph workflow
            try
            {
                IEdmVault7 vault2 = default(IEdmVault7);
                if (vault1 == null)
                {
                    vault1 = new EdmVault5();
                }
 
                vault2 = (IEdmVault7)vault1;
                if (!vault1.IsLoggedIn)
                {
                    vault1.LoginAuto(VaultsComboBox.Text, this.Handle.ToInt32());
                }
 
                //Retrieve the graphics interface of this window
                System.Drawing.Graphics gfx = default(System.Drawing.Graphics);
                gfx = this.CreateGraphics();
                gfx.Clear(Color.AliceBlue);
 
                //Create font with which to draw text 
                System.Drawing.Font font = default(System.Drawing.Font);
                font = new System.Drawing.Font("Arial", 10, FontStyle.Bold);
 
                //Loop over all the workflows to find the selected workflow
                pos = wfmgr.GetFirstWorkflowPosition();
                while (!pos.IsNull)
                {
                    wf = wfmgr.GetNextWorkflow(pos);
 
                    if ((wf.Name == ListBox1.SelectedItem.ToString()))
                    {
                        //Loop over all workflow transitions
                        pos = default(IEdmPos5);
                        pos = wf.GetFirstTransitionPosition();
                        while (!pos.IsNull)
                        {
                            IEdmTransition7 trans = default(IEdmTransition7);
                            trans = (IEdmTransition7)wf.GetNextTransition(pos);
 
                            //Draw the arrow of the transition
                            EdmPoint[] vertices = null;
                            vertices = null;
                            trans.GetArrowVertices(out vertices);
                            PaintArrow(gfx, vertices);
 
                            //Get the transition box
                            EdmRect transRect = default(EdmRect);
                            trans.GetRect(out transRect);
                            System.Drawing.RectangleF rectF = default(System.Drawing.RectangleF);
                            rectF.X = transRect.mlLeft;
                            rectF.Y = transRect.mlTop;
                            rectF.Width = transRect.mlRight - transRect.mlLeft;
                            rectF.Height = transRect.mlBottom - transRect.mlTop;
 
                            //Draw the transition box
                            gfx.FillRectangle(Brushes.LightYellow, rectF);
                            gfx.DrawRectangle(Pens.Black, rectF.X, rectF.Y, rectF.Width, rectF.Height);
                            gfx.DrawString(trans.Name, font, Brushes.Black, rectF);
                        }
 
                        //Loop over all workflow states
                        pos = wf.GetFirstStatePosition();
                        while (!pos.IsNull)
                        {
                            IEdmState7 state = default(IEdmState7);
                            state = (IEdmState7)wf.GetNextState(pos);
 
                            //Get the state box
                            EdmRect stateRect = default(EdmRect);
                            state.GetRect(out stateRect);
                            System.Drawing.RectangleF rectF = default(System.Drawing.RectangleF);
                            rectF.X = stateRect.mlLeft;
                            rectF.Y = stateRect.mlTop;
                            rectF.Width = stateRect.mlRight - stateRect.mlLeft;
                            rectF.Height = stateRect.mlBottom - stateRect.mlTop;
 
                            //Draw the state box
                            gfx.FillRectangle(Brushes.Azure, rectF);
                            gfx.DrawRectangle(Pens.Black, rectF.X, rectF.Y, rectF.Width, rectF.Height);
                            gfx.DrawString(state.Name, font, Brushes.Black, rectF);
                        }
                    }
                }
            }
            catch (System.Runtime.InteropServices.COMException ex)
            {
                MessageBox.Show("HRESULT = 0x" + ex.ErrorCode.ToString("X") + " " + ex.Message);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
 
        }
 
        //Draw the arrow of a transition
        private void PaintArrow(System.Drawing.Graphics gfx, EdmPoint[] vertices)
        {
            try
            {
                System.Drawing.PointF[] points = new System.Drawing.PointF[Information.UBound(vertices) + 1];
                int i = 0;
                i = Information.LBound(vertices);
                while (i <= Information.UBound(vertices))
                {
                    points[i].X = vertices[i].mlX;
                    points[i].Y = vertices[i].mlY;
                    i = i + 1;
                }
 
                //Draw the arrow lines
                gfx.DrawLines(Pens.DarkRed, points);
 
            }
            catch (System.Runtime.InteropServices.COMException ex)
            {
                MessageBox.Show("HRESULT = 0x" + ex.ErrorCode.ToString("X") + " " + ex.Message);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }
 
        private void VaultsComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            try
            {
                vault1 = new EdmVault5();
                IEdmVault8 vault = (IEdmVault8)vault1;
 
                if (!vault1.IsLoggedIn)
                {
                    vault1.LoginAuto(VaultsComboBox.Text, this.Handle.ToInt32());
                }
 
                ListBox1.Items.Clear();
 
                wfmgr = (IEdmWorkflowMgr6)vault.CreateUtility(EdmUtility.EdmUtil_WorkflowMgr);
                pos = wfmgr.GetFirstWorkflowPosition();
                while (!pos.IsNull)
                {
                    wf = wfmgr.GetNextWorkflow(pos);
                    ListBox1.Items.Add(wf.Name);
                }
 
            }
            catch (System.Runtime.InteropServices.COMException ex)
            {
                MessageBox.Show("HRESULT = 0x" + ex.ErrorCode.ToString("X") + " " + ex.Message);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }
    }
}

 

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//Form1.Designer.cs

namespace PaintWorkflowGraph_CSharp
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;
 
        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }
 
        #region Windows Form Designer generated code
 
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.VaultsLabel = new System.Windows.Forms.Label();
            this.VaultsComboBox = new System.Windows.Forms.ComboBox();
            this.GraphWorkflow = new System.Windows.Forms.Button();
            this.ListBox1 = new System.Windows.Forms.ListBox();
            this.Label1 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // VaultsLabel
            // 
            this.VaultsLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
            this.VaultsLabel.AutoSize = true;
            this.VaultsLabel.Location = new System.Drawing.Point(13, 26);
            this.VaultsLabel.Name = "VaultsLabel";
            this.VaultsLabel.Size = new System.Drawing.Size(94, 13);
            this.VaultsLabel.TabIndex = 0;
            this.VaultsLabel.Text = " Select vault view:";
            // 
            // VaultsComboBox
            // 
            this.VaultsComboBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
            this.VaultsComboBox.FormattingEnabled = true;
            this.VaultsComboBox.Location = new System.Drawing.Point(16, 42);
            this.VaultsComboBox.Name = "VaultsComboBox";
            this.VaultsComboBox.Size = new System.Drawing.Size(121, 21);
            this.VaultsComboBox.TabIndex = 1;
            // 
            // GraphWorkflow
            // 
            this.GraphWorkflow.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
            this.GraphWorkflow.Location = new System.Drawing.Point(15, 199);
            this.GraphWorkflow.Name = "GraphWorkflow";
            this.GraphWorkflow.Size = new System.Drawing.Size(121, 23);
            this.GraphWorkflow.TabIndex = 5;
            this.GraphWorkflow.Text = "Graph workflow";
            this.GraphWorkflow.UseVisualStyleBackColor = true;
            this.GraphWorkflow.Click += new System.EventHandler(this.GraphWorkflow_Click);
            // 
            // ListBox1
            // 
            this.ListBox1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
            this.ListBox1.FormattingEnabled = true;
            this.ListBox1.HorizontalScrollbar = true;
            this.ListBox1.Location = new System.Drawing.Point(15, 98);
            this.ListBox1.Name = "ListBox1";
            this.ListBox1.Size = new System.Drawing.Size(120, 95);
            this.ListBox1.TabIndex = 6;
            // 
            // Label1
            // 
            this.Label1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
            this.Label1.AutoSize = true;
            this.Label1.Location = new System.Drawing.Point(13, 82);
            this.Label1.Name = "Label1";
            this.Label1.Size = new System.Drawing.Size(85, 13);
            this.Label1.TabIndex = 7;
            this.Label1.Text = "Select workflow:";
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(227, 262);
            this.Controls.Add(this.Label1);
            this.Controls.Add(this.ListBox1);
            this.Controls.Add(this.GraphWorkflow);
            this.Controls.Add(this.VaultsComboBox);
            this.Controls.Add(this.VaultsLabel);
            this.Name = "Form1";
            this.Text = "Graph a workflow";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);
            this.PerformLayout();
 
        }
 
        #endregion
 
        internal System.Windows.Forms.Label VaultsLabel;
        internal System.Windows.Forms.ComboBox VaultsComboBox;
        internal System.Windows.Forms.Button GraphWorkflow;
        internal System.Windows.Forms.ListBox ListBox1;
        internal System.Windows.Forms.Label Label1;
    }
}

 

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