AyaNovaQBI/SetQBInvoiceTemplate.cs

@@ -21,7 +21,21 @@ namespace AyaNovaQBI
 
         public DataTable QBInvoiceTemplates { get; set; }
 
-        public string SelectedQBInvoiceTemplate { get => (string)cbQBItems.SelectedValue; set { } }
+       
+
+        public string SelectedQBInvoiceTemplate
+        {
+            get
+            {
+                return _selectedQBInvoiceTemplate;
+            }
+
+            set
+            {
+                _selectedQBInvoiceTemplate = value;
+            }
+        }
+        private string _selectedQBInvoiceTemplate;
 
         private void SetQBClass_load(object sender, EventArgs e)
         {
@@ -35,6 +49,11 @@ namespace AyaNovaQBI
             cbQBItems.DisplayMember = "FullName";
             cbQBItems.ValueMember = "ID";
             lblStatus.Text = "QuickBooks invoice template:";
+
+            if (string.IsNullOrWhiteSpace(_selectedQBInvoiceTemplate))
+                cbQBItems.SelectedIndex = 0;
+            else
+                this.cbQBItems.SelectedValue = _selectedQBInvoiceTemplate;
         }