init

Common/DTS.Common/Controls/TestIDTestBox.xaml.cs

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+//https://stackoverflow.com/questions/35324285/how-to-create-masked-textbox-like-windows-ip-address-fields
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+
+
+
+namespace DTS.Common.Controls
+{
+    /// <summary>
+    /// Interaction logic for IPTextBox.xaml
+    /// </summary>
+    public partial class TestIDTextBox : UserControl
+    {
+        private static readonly List<Key> OtherAllowedKeys = new List<Key> { Key.Delete };
+        
+        private bool _suppressAddressUpdate = false;
+
+        public TestIDTextBox()
+        {
+            InitializeComponent();
+        }
+
+        //FB 43400 added Clear method to reset the segments
+        public void Clear()
+        {
+            tbTestId.Text = string.Empty;
+        }
+
+        public static readonly DependencyProperty TextProperty = DependencyProperty.Register(
+            "Text", typeof(string), typeof(TestIDTextBox), new FrameworkPropertyMetadata(default(string), TextChanged)
+            {
+                BindsTwoWayByDefault = true
+            });
+
+        private static void TextChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
+        {
+            var tb = dependencyObject as TestIDTextBox;
+            var text = e.NewValue as string;
+
+            if (text != null && tb != null)
+            {
+                tb._suppressAddressUpdate = true;
+
+                if (IsValidText(text))
+                {
+                    tb.tbTestId.Text = text;
+                }
+                else
+                {
+                    tb.tbTestId.Text = (string)e.OldValue;
+                }
+                tb._suppressAddressUpdate = false;
+            }
+        }
+
+        public string Text
+        {
+            get { return (string)GetValue(TextProperty); }
+            set { SetValue(TextProperty, value); }
+        }
+
+        
+        private static bool IsValidText(string text)
+        {
+            var invalidChars = new List<char>();
+            invalidChars.AddRange(Path.GetInvalidFileNameChars());
+            invalidChars.AddRange(Path.GetInvalidPathChars());
+            invalidChars.Add('.');
+            var charArray = text.ToCharArray();
+            return !Array.Exists(charArray, x => invalidChars.Contains(x));
+        }
+
+        private void tbTestId_PreviewTextInput(object sender, TextCompositionEventArgs e)
+        {
+            e.Handled = !IsValidText(e.Text);
+        }
+
+        private void TextBoxBase_OnTextChanged(object sender, TextChangedEventArgs e)
+        {
+            if ( !(sender is TextBox tb)) { return; }
+            e.Handled = !IsValidText(tb.Text);
+        }
+    }
+}