# SOLIDWORKS PDM Professional API Help

# Find Revisions Using Component Example (C#)

This example shows how to find the revision numbers using the revision number component named Alpha Revision Component.

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.
    //  2. Click File > New > Project > C# > Windows Forms Application.
    //  3. Type FindRevisionsCSharp in Name.
    //  4. Click the Browse button and browse to the folder where to create the project.
    //  5. Click OK.
    //  6. Create a form similar to the form shown above and change:
    //     a. Label to VaultsLabel.
    //     b. Combo box to VaultsComboBox.
    //     c. Button to FindRevisionsButton.
    //  7. Replace the code in Form1.cs with this code.
    //  8. Replace the code in Form1.Designer.cs with this code.
    //  9. Add EPDM.Interop.epdm.dll as a reference (right-click the project
    //     name in the Solution Explorer, click Add Reference, click
    //     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, click Add, and click Close).
    // 10. Right-click EPDM.Interop.epdm in References, click Properties, and set
    //     Embed Interop Types to False to handle methods that pass arrays of
    //     structures.
    // 11. Open the Immediate window.
    // 12. Switch back to the Form1.cs code window.
    // 13. Click Debug > Start Debugging or press F5.
    //
    // Postconditions:
    //  1. Displays a dialog.
    //  2. Select a vault.
    //  3. Click the Find revisions that use Alpha Revision Component button.
    //  4. Prints the names of the revision numbers using the revision number
    //     component Alpha Revision Component to the Immediate window.
    //  5. Examine the Immediate window.
    //  6. Close the dialog.
    //----------------------------------------------------------------------------

    //Form1.cs

    using EPDM.Interop.epdm;
    using System;
    using System.Diagnostics;
    using System.Windows.Forms;
    using System.Runtime.InteropServices;

    namespace FindRevisionsCSharp
    {
    	public partial class Form1 : Form
    	{
    		public Form1()
    		{
    			InitializeComponent();
    		}

    		void FindRevisionsCSharp_Load(System.Object sender, System.EventArgs e)
    		{
    			try
    			{
    				//Declare and create an instance of IEdmVault5
    				IEdmVault5 vault1 = new EdmVault5();

    				//Cast IEdmVault5 to IEdmVault8
    				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);
    			}
    		}

    		private void FindRevisionsButton_Click(System.Object sender, System.EventArgs e)
    	    {
    		    try {
    			        //Declare and create an instance of IEdmVault5 object
                                       //and cast to IEdmVault7
    			        IEdmVault5 vault = new EdmVault5();
    			        IEdmVault7 vault1 = (IEdmVault7)vault;

    			        //Log into selected vault as the current user
    			        vault.LoginAuto(VaultsComboBox.Text, this.Handle.ToInt32());

    			        Debug.Print("Revision numbers that use revision number component \"Alpha Revision Component\":");
    			        Debug.Print("");

    			        IEdmRevisionMgr2 RevMgr = default(IEdmRevisionMgr2);
    			        RevMgr = (IEdmRevisionMgr2)vault1.CreateUtility(EdmUtility.EdmUtil_RevisionMgr);

    			        EdmRevNo[] RevNumbers = null;
    			        RevMgr.GetRevisionNumbers(null, out RevNumbers);
    			        foreach ( EdmRevNo RevNo in RevNumbers) {
    				        EdmRevComponent2[] RevComponents = null;
    				        RevMgr.GetRevisionNumberComponents2(-RevNo.mlRevNoID, out RevComponents);
    				        foreach ( EdmRevComponent2 RevComponent in RevComponents) {
    					        if (RevComponent.mbsComponentName == "Alpha Revision Component") {
    						        Debug.Print("  " + RevNo.mbsRevNoName);
    					        }
    				        }
    			        }

    		        } 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 FindRevisionsCSharp
    {
        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.FindRevisionsButton = new System.Windows.Forms.Button();
                this.SuspendLayout();
                //
                // VaultsLabel
                //
                this.VaultsLabel.AutoSize = true;
                this.VaultsLabel.Location = new System.Drawing.Point(112, 37);
                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(94, 77);
                this.VaultsComboBox.Name = "VaultsComboBox";
                this.VaultsComboBox.Size = new System.Drawing.Size(121, 21);
                this.VaultsComboBox.TabIndex = 1;
                //
                // FindRevisionsButton
                //
                this.FindRevisionsButton.Location = new System.Drawing.Point(94, 136);
                this.FindRevisionsButton.Name = "FindRevisionsButton";
                this.FindRevisionsButton.Size = new System.Drawing.Size(121, 50);
                this.FindRevisionsButton.TabIndex = 2;
                this.FindRevisionsButton.Text = "Find revisions that use Alpha Revision Component";
                this.FindRevisionsButton.UseVisualStyleBackColor = true;
                this.FindRevisionsButton.Click += new System.EventHandler(this.FindRevisionsButton_Click);
                //
                // Form1
                //
                this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
                this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
                this.ClientSize = new System.Drawing.Size(304, 209);
                this.Controls.Add(this.FindRevisionsButton);
                this.Controls.Add(this.VaultsComboBox);
                this.Controls.Add(this.VaultsLabel);
                this.Name = "Form1";
                this.Text = "Find revisions using component";
                this.Load += new System.EventHandler(this.FindRevisionsCSharp_Load);
                this.ResumeLayout(false);
                this.PerformLayout();

            }

            #endregion

            private System.Windows.Forms.Label VaultsLabel;
            private System.Windows.Forms.ComboBox VaultsComboBox;
            private System.Windows.Forms.Button FindRevisionsButton;
        }
    }

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