Add help to link creation, as the UI was hard to figure out what to do next.

EduNetworkBuilder/LinkEditor.Designer.cs

@@ -35,53 +35,63 @@
             this.btnLink = new System.Windows.Forms.Button();
             this.btnCancel = new System.Windows.Forms.Button();
             this.cbLinkType = new System.Windows.Forms.ComboBox();
+            this.pbSource = new System.Windows.Forms.PictureBox();
+            this.pbDest = new System.Windows.Forms.PictureBox();
+            this.lblInstructions = new System.Windows.Forms.Label();
+            ((System.ComponentModel.ISupportInitialize)(this.pbSource)).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)(this.pbDest)).BeginInit();
             this.SuspendLayout();
             // 
             // lbSrcHost
             // 
             this.lbSrcHost.FormattingEnabled = true;
-            this.lbSrcHost.ItemHeight = 16;
-            this.lbSrcHost.Location = new System.Drawing.Point(9, 18);
+            this.lbSrcHost.ItemHeight = 29;
+            this.lbSrcHost.Location = new System.Drawing.Point(20, 185);
+            this.lbSrcHost.Margin = new System.Windows.Forms.Padding(5);
             this.lbSrcHost.Name = "lbSrcHost";
-            this.lbSrcHost.Size = new System.Drawing.Size(103, 84);
+            this.lbSrcHost.Size = new System.Drawing.Size(177, 149);
             this.lbSrcHost.TabIndex = 0;
             this.lbSrcHost.SelectedIndexChanged += new System.EventHandler(this.lbSrcHost_SelectedIndexChanged);
             // 
             // lbSrcNic
             // 
             this.lbSrcNic.FormattingEnabled = true;
-            this.lbSrcNic.ItemHeight = 16;
-            this.lbSrcNic.Location = new System.Drawing.Point(118, 18);
+            this.lbSrcNic.ItemHeight = 29;
+            this.lbSrcNic.Location = new System.Drawing.Point(210, 185);
+            this.lbSrcNic.Margin = new System.Windows.Forms.Padding(5);
             this.lbSrcNic.Name = "lbSrcNic";
-            this.lbSrcNic.Size = new System.Drawing.Size(89, 84);
+            this.lbSrcNic.Size = new System.Drawing.Size(153, 149);
             this.lbSrcNic.TabIndex = 1;
             this.lbSrcNic.SelectedIndexChanged += new System.EventHandler(this.lbSrcNic_SelectedIndexChanged);
             // 
             // lbDstNic
             // 
             this.lbDstNic.FormattingEnabled = true;
-            this.lbDstNic.ItemHeight = 16;
-            this.lbDstNic.Location = new System.Drawing.Point(399, 18);
+            this.lbDstNic.ItemHeight = 29;
+            this.lbDstNic.Location = new System.Drawing.Point(702, 185);
+            this.lbDstNic.Margin = new System.Windows.Forms.Padding(5);
             this.lbDstNic.Name = "lbDstNic";
-            this.lbDstNic.Size = new System.Drawing.Size(89, 84);
+            this.lbDstNic.Size = new System.Drawing.Size(153, 149);
             this.lbDstNic.TabIndex = 3;
             this.lbDstNic.SelectedIndexChanged += new System.EventHandler(this.lbDstNic_SelectedIndexChanged);
             // 
             // lbDstHost
             // 
             this.lbDstHost.FormattingEnabled = true;
-            this.lbDstHost.ItemHeight = 16;
-            this.lbDstHost.Location = new System.Drawing.Point(290, 18);
+            this.lbDstHost.ItemHeight = 29;
+            this.lbDstHost.Location = new System.Drawing.Point(512, 185);
+            this.lbDstHost.Margin = new System.Windows.Forms.Padding(5);
             this.lbDstHost.Name = "lbDstHost";
-            this.lbDstHost.Size = new System.Drawing.Size(103, 84);
+            this.lbDstHost.Size = new System.Drawing.Size(177, 149);
             this.lbDstHost.TabIndex = 2;
             this.lbDstHost.SelectedIndexChanged += new System.EventHandler(this.lbDstHost_SelectedIndexChanged);
             // 
             // btnLink
             // 
-            this.btnLink.Location = new System.Drawing.Point(210, 18);
+            this.btnLink.Location = new System.Drawing.Point(372, 185);
+            this.btnLink.Margin = new System.Windows.Forms.Padding(5);
             this.btnLink.Name = "btnLink";
-            this.btnLink.Size = new System.Drawing.Size(75, 23);
+            this.btnLink.Size = new System.Drawing.Size(131, 42);
             this.btnLink.TabIndex = 4;
             this.btnLink.Text = "Link";
             this.btnLink.UseVisualStyleBackColor = true;
@@ -89,9 +99,10 @@
             // 
             // btnCancel
             // 
-            this.btnCancel.Location = new System.Drawing.Point(210, 47);
+            this.btnCancel.Location = new System.Drawing.Point(372, 237);
+            this.btnCancel.Margin = new System.Windows.Forms.Padding(5);
             this.btnCancel.Name = "btnCancel";
-            this.btnCancel.Size = new System.Drawing.Size(75, 23);
+            this.btnCancel.Size = new System.Drawing.Size(131, 42);
             this.btnCancel.TabIndex = 5;
             this.btnCancel.Text = "Cancel";
             this.btnCancel.UseVisualStyleBackColor = true;
@@ -100,16 +111,47 @@
             // cbLinkType
             // 
             this.cbLinkType.FormattingEnabled = true;
-            this.cbLinkType.Location = new System.Drawing.Point(210, 76);
+            this.cbLinkType.Location = new System.Drawing.Point(372, 290);
+            this.cbLinkType.Margin = new System.Windows.Forms.Padding(5);
             this.cbLinkType.Name = "cbLinkType";
-            this.cbLinkType.Size = new System.Drawing.Size(75, 24);
+            this.cbLinkType.Size = new System.Drawing.Size(128, 37);
             this.cbLinkType.TabIndex = 6;
             // 
+            // pbSource
+            // 
+            this.pbSource.Location = new System.Drawing.Point(120, 28);
+            this.pbSource.Name = "pbSource";
+            this.pbSource.Size = new System.Drawing.Size(167, 149);
+            this.pbSource.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
+            this.pbSource.TabIndex = 7;
+            this.pbSource.TabStop = false;
+            // 
+            // pbDest
+            // 
+            this.pbDest.Location = new System.Drawing.Point(607, 28);
+            this.pbDest.Name = "pbDest";
+            this.pbDest.Size = new System.Drawing.Size(167, 149);
+            this.pbDest.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
+            this.pbDest.TabIndex = 8;
+            this.pbDest.TabStop = false;
+            // 
+            // lblInstructions
+            // 
+            this.lblInstructions.AutoSize = true;
+            this.lblInstructions.Location = new System.Drawing.Point(15, 351);
+            this.lblInstructions.Name = "lblInstructions";
+            this.lblInstructions.Size = new System.Drawing.Size(79, 29);
+            this.lblInstructions.TabIndex = 9;
+            this.lblInstructions.Text = "label1";
+            // 
             // LinkEditor
             // 
-            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);
+            this.AutoScaleDimensions = new System.Drawing.SizeF(14F, 29F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.ClientSize = new System.Drawing.Size(495, 117);
+            this.ClientSize = new System.Drawing.Size(866, 389);
+            this.Controls.Add(this.lblInstructions);
+            this.Controls.Add(this.pbDest);
+            this.Controls.Add(this.pbSource);
             this.Controls.Add(this.cbLinkType);
             this.Controls.Add(this.btnCancel);
             this.Controls.Add(this.btnLink);
@@ -119,10 +161,14 @@
             this.Controls.Add(this.lbSrcHost);
             this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow;
             this.Icon = global::EduNetworkBuilder.Properties.Resources.NBIco;
+            this.Margin = new System.Windows.Forms.Padding(5);
             this.Name = "LinkEditor";
             this.Text = "LinkEditor";
             this.Shown += new System.EventHandler(this.LinkEditor_Shown);
+            ((System.ComponentModel.ISupportInitialize)(this.pbSource)).EndInit();
+            ((System.ComponentModel.ISupportInitialize)(this.pbDest)).EndInit();
             this.ResumeLayout(false);
+            this.PerformLayout();
 
         }
 
@@ -135,5 +181,8 @@
         private System.Windows.Forms.Button btnLink;
         private System.Windows.Forms.Button btnCancel;
         private System.Windows.Forms.ComboBox cbLinkType;
+        private System.Windows.Forms.PictureBox pbSource;
+        private System.Windows.Forms.PictureBox pbDest;
+        private System.Windows.Forms.Label lblInstructions;
     }
 }

EduNetworkBuilder/LinkEditor.cs

@@ -45,6 +45,7 @@ namespace EduNetworkBuilder
                     lbSrcHost.SelectedIndex = tindex;
                     UpdateDeviceList();
                 }
+                pbSource.Image = new Bitmap(Source.GetImage());
             }
             if (Dest != null)
             {
@@ -54,6 +55,7 @@ namespace EduNetworkBuilder
                     lbDstHost.SelectedIndex = tindex;
                     UpdateDeviceList();
                 }
+                pbDest.Image = new Bitmap(Dest.GetImage());
             }
         }
 
@@ -86,11 +88,12 @@ namespace EduNetworkBuilder
             if (lbDstHost.SelectedItem != null)
                 DstHost = lbDstHost.SelectedItem.ToString();
             string SrcNic = "";
+            NetworkDevice Src = null;
             if (lbSrcNic.SelectedItem != null)
             {
+                Src = myNet.DeviceFromName(lbSrcHost.SelectedItem.ToString());
                 SrcNic = lbSrcNic.SelectedItem.ToString();
                 int sNicIndex = lbSrcNic.SelectedIndex;
-                NetworkDevice Src = myNet.DeviceFromName(lbSrcHost.SelectedItem.ToString());
                 NetworkCard sNic = null;
                 if(Src != null) sNic = Src.NicFromName(lbSrcNic.SelectedItem.ToString());
                 if(sNic != null) srcNicType = sNic.GetNicType;
@@ -176,6 +179,33 @@ namespace EduNetworkBuilder
                     lbDstNic.SelectedIndex = tint;
             }
 
+            if (lbSrcHost.SelectedItem != null)
+            {
+                Src = myNet.DeviceFromName(lbSrcHost.SelectedItem.ToString());
+                pbSource.Image = Src.GetImage();
+                pbSource.Invalidate();
+            }
+            else
+            {
+                pbSource.Image = null;
+                pbSource.Invalidate();
+            }
+
+            if (lbDstHost.SelectedItem != null)
+            {
+                NetworkDevice Dest = myNet.DeviceFromName(lbDstHost.SelectedItem.ToString());
+                if (Dest != null)
+                {
+                    pbDest.Image = Dest.GetImage();
+                    pbDest.Invalidate();
+                }
+            }
+            else
+            {
+                pbDest.Image = null;
+                pbDest.Invalidate();
+            }
+
             if (lbDstNic.SelectedIndex > -1 && lbSrcNic.SelectedIndex > -1)
             {
                 btnLink.Enabled = true;
@@ -202,6 +232,43 @@ namespace EduNetworkBuilder
                 cbLinkType.SelectedItem = theLinkType;
             else
                 cbLinkType.SelectedIndex = 0;
+
+            //Update the instructions.
+            lblInstructions.Text = ""; //empty them out if we do not need instructions
+            lbSrcHost.ResetForeColor() ;
+            lbSrcNic.ResetForeColor();
+            lbDstHost.ResetForeColor();
+            lbDstNic.ResetForeColor();
+            btnLink.ForeColor = Color.Black;
+            if (lbSrcHost.SelectedItem == null)
+            {
+                lblInstructions.Text = "Choose the source device.";
+                lbSrcHost.ForeColor = Color.Red;
+            } 
+            else if (lbSrcNic.SelectedItem == null)
+            {
+                lblInstructions.Text = "Choose the NIC / Port on the source device.";
+                lbSrcNic.ForeColor = Color.Red;
+            }
+            else if (lbDstHost.SelectedItem == null)
+            {
+                lblInstructions.Text = "Choose the destination device.";
+                lbDstHost.ForeColor = Color.Red;
+            }
+            else if (lbDstNic.SelectedItem == null)
+            {
+                lblInstructions.Text = "Choose the NIC / Port on the destination device.";
+                lbDstNic.ForeColor = Color.Red;
+            }
+            else
+            {
+                //We have a valid link.  We are ready to press the link.
+                lblInstructions.Text = "This is a valid link.  Press LINK to continue";
+                btnLink.ForeColor = Color.Red;
+            }
+
+
+
             processing = false;
         }
 

EduNetworkBuilder/NetworkDevice.cs

@@ -755,6 +755,15 @@ namespace EduNetworkBuilder
             }
         }
 
+        /// <summary>
+        /// Return a copy of the image for this device
+        /// </summary>
+        /// <returns></returns>
+        public Image GetImage()
+        {
+            return new Bitmap(MyImage);
+        }
+
         //This function heavily borrowed from: http://stackoverflow.com/questions/1563038/fast-work-with-bitmaps-in-c-sharp
         public Image ColoredImage(Image BaseImage)
         {