AyaNovaQBI/Map.cs

@@ -73,6 +73,7 @@ namespace AyaNovaQBI
             if (gridAya.SelectedRows.Count == 0 && gridQB.SelectedRows.Count == 0) return;
 
             IsAyaGrid = gridAya.SelectedRows.Count > 0;
+            bool SaveIntegration = false;
 
             if (IsAyaGrid)
             {
@@ -119,8 +120,6 @@ namespace AyaNovaQBI
                     IntegrationItem m = util.QBIntegration.Items.FirstOrDefault(z => z.Id == AyaId && z.AType == _Type);
                     if (m != null)
                     {
-
-
                         //Is it already linked to the selected qb object?
 
                         //Yes so do nothing and continue on to the next object
@@ -139,22 +138,38 @@ namespace AyaNovaQBI
 
                         //If we're here it's because the object is already mapped
                         //but the users has signified they want to change the map to another object so...
-                        m.IntegrationItemId = QBItemId;
-                        m.IntegrationItemName = QBItemName;
-                        m.LastSync = System.DateTime.Now;
+                        if (!string.IsNullOrEmpty(QBItemId))//confirm not a removal
+                        {
+                            m.IntegrationItemId = QBItemId;
+                            m.IntegrationItemName = QBItemName;
+                            m.LastSync = System.DateTime.Now;
+                            SaveIntegration = true;
+                        }
+                        else
+                        {
+                            //user is removing mapping so remove the integrationitem entirely from the collection
+                            util.QBIntegration.Items.Remove(m);
+                            SaveIntegration = true;
+                        }
 
                     }
                     else
                     {
-                        //not already present, so add it, easy peasy...
-                        m = new IntegrationItem { AType = _Type, IntegrationItemName = QBItemName, IntegrationItemId = QBItemId, LastSync = System.DateTime.Now, ObjectId = AyaId };
-                        util.QBIntegration.Items.Add(m);
+                        if (!string.IsNullOrEmpty(QBItemId))//confirm not a removal
+                        {
+                            //not already present, so add it, easy peasy...
+                            m = new IntegrationItem { AType = _Type, IntegrationItemName = QBItemName, IntegrationItemId = QBItemId, LastSync = System.DateTime.Now, ObjectId = AyaId };
+                            util.QBIntegration.Items.Add(m);
+                            SaveIntegration = true;
+                        }
                     }
                 }
 
-
-                await util.SaveIntegrationObject();
-                Initialize();
+                if (SaveIntegration)
+                {
+                    await util.SaveIntegrationObject();
+                    Initialize();
+                }
 
                 //#################################
             }

AyaNovaQBI/MapSelectQBItem.Designer.cs

@@ -32,6 +32,7 @@
             this.cbQBItems = new System.Windows.Forms.ComboBox();
             this.btnOK = new System.Windows.Forms.Button();
             this.btnCancel = new System.Windows.Forms.Button();
+            this.ckNothing = new System.Windows.Forms.CheckBox();
             this.SuspendLayout();
             // 
             // label1
@@ -74,12 +75,24 @@
             this.btnCancel.UseVisualStyleBackColor = true;
             this.btnCancel.Click += new System.EventHandler(this.btnCancel_Click);
             // 
+            // ckNothing
+            // 
+            this.ckNothing.AutoSize = true;
+            this.ckNothing.Location = new System.Drawing.Point(16, 56);
+            this.ckNothing.Name = "ckNothing";
+            this.ckNothing.Size = new System.Drawing.Size(80, 17);
+            this.ckNothing.TabIndex = 15;
+            this.ckNothing.Text = "checkBox1";
+            this.ckNothing.UseVisualStyleBackColor = true;
+            this.ckNothing.CheckedChanged += new System.EventHandler(this.ckNothing_CheckedChanged);
+            // 
             // MapSelectQBItem
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.CancelButton = this.btnCancel;
             this.ClientSize = new System.Drawing.Size(747, 150);
+            this.Controls.Add(this.ckNothing);
             this.Controls.Add(this.btnOK);
             this.Controls.Add(this.btnCancel);
             this.Controls.Add(this.cbQBItems);
@@ -91,6 +104,7 @@
             this.Text = "QB Items";
             this.Load += new System.EventHandler(this.MapSelectQBItem_Load);
             this.ResumeLayout(false);
+            this.PerformLayout();
 
         }
 
@@ -100,5 +114,6 @@
         private System.Windows.Forms.ComboBox cbQBItems;
         private System.Windows.Forms.Button btnOK;
         private System.Windows.Forms.Button btnCancel;
+        private System.Windows.Forms.CheckBox ckNothing;
     }
 }

AyaNovaQBI/MapSelectQBItem.cs

@@ -17,12 +17,29 @@ namespace AyaNovaQBI
             InitializeComponent();
         }
         public ComboBox SelectCombo => cbQBItems;
-       public string SelectedQBItemName => ((DataRowView)cbQBItems.SelectedItem).Row[0].ToString();
-        public string SelectedQBItemId => ((DataRowView)cbQBItems.SelectedItem).Row[1].ToString();
+        public string SelectedQBItemName
+        {
+            get
+            {
+                if (ckNothing.Checked) return "<nothing / remove link>";
+                return ((DataRowView)cbQBItems.SelectedItem).Row[0].ToString();
+            }
+        }
+
+        public string SelectedQBItemId
+        {
+            get
+            {
+                if (ckNothing.Checked) return string.Empty;
+                return ((DataRowView)cbQBItems.SelectedItem).Row[1].ToString();
+            }
+        }
+
         public DataTable QBItems { get; set; }
         private void MapSelectQBItem_Load(object sender, EventArgs e)
         {
             cbQBItems.DataSource = QBItems;
+           
             cbQBItems.DisplayMember = "name";
             cbQBItems.ValueMember = "id";
             btnCancel.Text = util.AyaTranslations["Cancel"];
@@ -40,5 +57,10 @@ namespace AyaNovaQBI
             DialogResult = DialogResult.OK;
             Close();
         }
+
+        private void ckNothing_CheckedChanged(object sender, EventArgs e)
+        {
+            cbQBItems.Enabled = !ckNothing.Checked;
+        }
     }
 }