# SOLIDWORKS PDM Professional API Help

# Get Parent References of File Example (C#)

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

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

//----------------------------------------------------------------------------
// Preconditions:
// 1. Start Microsoft Visual Studio.
// 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 PDM Professional installation, locate and click
// EPDM.Interop.epdm.dll, click Open, and click Add).
// 3. Right-click EPDM.Interop.epdm in References, click Properties, and set
// Embed Interop Types to False to handle methods that pass arrays of
// structures.
// 4. 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;
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 + "':" + "\n";
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 + "\n";
}
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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