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Get Parent References of File Example (C#)

This example shows how to find the parent references of a file.

NOTE: If using the .NET Framework 4.0 primary interop assembly provided with SOLIDWORKS Enterprise PDM, 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 GetParentReferences_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 Enterprise PDM 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. The Get parent references dialog displays.
// 2. Select a vault view.
// 3. Click Browse for file.
// 4. Locate and click one of the parts mentioned in Preconditions step 4.

// 5. Click Open.
// 6. Click Get parent references.

// 7. Displays the references of the selected part.
// 8. Click OK.

// 9. Close the Get parent references dialog.         

//----------------------------------------------------------------------------
 
//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 GetParentReferences_CSharp
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private IEdmVault5 vault1 = null;
 
        public void Form1_Load(System.Object sender, System.EventArgs e)
        {
            try
            {
                IEdmVault5 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 BrowseButton_Click(System.Object sender, System.EventArgs e)
        {
            try
            {
                Listbox.Items.Clear();
 
                if (vault1 == null)
                {
                    vault1 = new EdmVault5();
                }
                if (!vault1.IsLoggedIn)
                {
                    vault1.LoginAuto(VaultsComboBox.Text, this.Handle.ToInt32());
                }
 
                //Set the initial directory in the Open dialog
                OpenFileDialog.InitialDirectory = vault1.RootFolderPath;
                //Show the Open dialog
                System.Windows.Forms.DialogResult DialogResult;
                DialogResult = OpenFileDialog.ShowDialog();
                //If the user didn't click Open, exit
                if (!(DialogResult == System.Windows.Forms.DialogResult.OK))
                {
                    return;
                }
 
                foreach (string FileName in OpenFileDialog.FileNames)
                {
                    Listbox.Items.Add(FileName);
                }
            }
            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 GetParentReferences_Click(System.Object sender, System.EventArgs e)
        {
            try
            {
 
                IEdmVault7 vault2 = null;
                if (vault1 == null)
                {
                    vault1 = new EdmVault5();
                }
                vault2 = (IEdmVault7)vault1;
                if (!vault1.IsLoggedIn)
                {
                    vault1.LoginAuto(VaultsComboBox.Text, this.Handle.ToInt32());
                }
 
                IEdmFile5 file = null;
                IEdmFolder5 parentFolder = null;
                int i = 0;
                foreach (string FileName in Listbox.Items)
                {
                    file = vault2.GetFileFromPath(FileName, out parentFolder);
                    i += 1;
                }
 
                //Get an interface to the reference tree
                IEdmReference7 @ref = default(IEdmReference7);
                @ref = (IEdmReference7)file.GetReferenceTree(parentFolder.ID);
 
                //Enumerate parent references
                string msg = null;
                msg = "Parent references of file '" + file.Name + "':" + Constants.vbLf;
                IEdmPos5 pos = default(IEdmPos5);
                pos = @ref.GetFirstParentPosition2(0, false, (int)EdmRefFlags.EdmRef_File + (int)EdmRefFlags.EdmRef_Item + (int)EdmRefFlags.EdmRef_Dynamic + (int)EdmRefFlags.EdmRef_Static);
                while (!pos.IsNull)
                {
                    IEdmReference7 parent = default(IEdmReference7);
                    parent = (IEdmReference7)@ref.GetNextParent(pos);
                    msg = msg + parent.FoundPath + Constants.vbLf;
                }
 
                MessageBox.Show(msg);
 
            }
            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 GetParentReferences_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.BrowseButton = new System.Windows.Forms.Button();
            this.Listbox = new System.Windows.Forms.ListBox();
            this.GetParentReferences = new System.Windows.Forms.Button();
            this.OpenFileDialog = new System.Windows.Forms.OpenFileDialog();
            this.SuspendLayout();
            //
            //VaultsLabel
            //
            this.VaultsLabel.AutoSize = true;
            this.VaultsLabel.Location = new System.Drawing.Point(13, 26);
            this.VaultsLabel.Name = "VaultsLabel";
            this.VaultsLabel.Size = new System.Drawing.Size(91, 13);
            this.VaultsLabel.TabIndex = 0;
            this.VaultsLabel.Text = "Select vault view:";
            //
            //VaultsComboBox
            //
            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;
            //
            //BrowseButton
            //
            this.BrowseButton.Location = new System.Drawing.Point(16, 81);
            this.BrowseButton.Name = "BrowseButton";
            this.BrowseButton.Size = new System.Drawing.Size(121, 23);
            this.BrowseButton.TabIndex = 3;
            this.BrowseButton.Text = "Browse for file...";
            this.BrowseButton.UseVisualStyleBackColor = true;
            this.BrowseButton.Click +=new System.EventHandler(BrowseButton_Click);
            //
            //Listbox
            //
            this.Listbox.FormattingEnabled = true;
            this.Listbox.HorizontalScrollbar = true;
            this.Listbox.Location = new System.Drawing.Point(16, 110);
            this.Listbox.Name = "Listbox";
            this.Listbox.Size = new System.Drawing.Size(259, 43);
            this.Listbox.TabIndex = 4;
            //
            //GetParentReferences
            //
            this.GetParentReferences.Location = new System.Drawing.Point(16, 173);
            this.GetParentReferences.Name = "GetParentReferences";
            this.GetParentReferences.Size = new System.Drawing.Size(121, 23);
            this.GetParentReferences.TabIndex = 5;
            this.GetParentReferences.Text = "Get parent references";
            this.GetParentReferences.UseVisualStyleBackColor = true;
            this.GetParentReferences.Click +=new System.EventHandler(GetParentReferences_Click);
            //
            //Form1
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6f, 13f);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(289, 215);
            this.Controls.Add(this.GetParentReferences);
            this.Controls.Add(this.Listbox);
            this.Controls.Add(this.BrowseButton);
            this.Controls.Add(this.VaultsComboBox);
            this.Controls.Add(this.VaultsLabel);
            this.Name = "Form1";
            this.Text = "Get parent references";
            this.Load +=new System.EventHandler(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 BrowseButton;
        internal System.Windows.Forms.ListBox Listbox;
        internal System.Windows.Forms.Button GetParentReferences;
        internal System.Windows.Forms.OpenFileDialog OpenFileDialog;
    }
}

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