private void _textArea_TextEntering(object sender, TextCompositionEventArgs e) {
			if (e.Text.Length > 0 && _completionWindow != null) {
				if (!char.IsLetterOrDigit(e.Text[0]) && e.Text[0] != '_') {
					_completionWindow.CompletionList.RequestInsertion(e);
				}
			}
		}

 private void text_box_only_digits_PreviewTextInput(object sender, TextCompositionEventArgs e)
 {
     if (!char.IsDigit(e.Text, e.Text.Length - 1))
     {
         e.Handled = true;
     }
 }

 private void VideoTerminal_Main_PreviewTextInput(object sender, TextCompositionEventArgs e)
 {
     string x = e.Text;
     Console.WriteLine(e.Text);
     VideoTerminal_Main.HandleClientData(e.Text);
     e.Handled = true;
 }

		private void textEditor_TextEntered(object sender, TextCompositionEventArgs e)
		{
			if (e.Text == "<" || e.Text == " ")
			{
				CompletionData[] completions1;
				if (completions.TryGetValue("!" + e.Text + "!" + GetActiveElement(1), out completions1))
				{
					completionWindow = new CompletionWindow(textEditor.TextArea);
					var completions2 = completionWindow.CompletionList.CompletionData;

					foreach (var completion in completions1)
						completions2.Add(completion);

					completionWindow.Show();
					completionWindow.Closed += delegate
					{
						completionWindow = null;
					};
				}
			}
			if (e.Text == ">")
			{
				var tag = GetOpenTag(1);
				if (tag != string.Empty)
					textEditor.Document.Insert(textEditor.CaretOffset, tag.Insert(1, "/") + ">");
			}
		}

 private void edSQL_TextArea_TextEntered(object sender, TextCompositionEventArgs e)
 {
     if (e.Text == ".")
     {
         edSQL_TextArea_Sense(sender, e);
     }
 }

 private void NumberBox_PreviewTextInput(object sender, TextCompositionEventArgs e)
 {
     if (new Regex("[^0-9.-]+").IsMatch(e.Text))
     {
         e.Handled = true;
     }
 }

        protected override void OnTextInput(TextCompositionEventArgs e)
        {
            this.LastInputEvent = InputEvents.OnTextInput;

            this.OnTextInserted(this, new TextInsertedEventArgs(e.Text, true, true));
            this.ClearText();
        }

        private void OnTextEntered(object sender, TextCompositionEventArgs e)
        {
            var ch = e.Text[0];

            // Set last key stroke
            _codeViewModel.LastKeyStroke = DateTime.Now;

            // Notify our language context that the document is dirty and needs a reparsing
            _languageContext.IsDirty = true;

            // Update any parse errors to account for the new text inserted
            var caretOffset = _textArea.Caret.Offset;
            var lineText = _textArea.Document.GetText(_textArea.Document.GetLineByOffset(caretOffset));
            Task.Run(() =>
            {
                _bookmarkManager.RecalculateOffsets(_textArea, BookmarkType.ParseError, caretOffset, e.Text.Length);
                _bookmarkManager.RecalculateOffsets(_textArea, BookmarkType.AnalyzerInfo, caretOffset, e.Text.Length);
                _bookmarkManager.RecalculateOffsets(_textArea, BookmarkType.AnalyzerWarning, caretOffset, e.Text.Length);
            });

            //if ((IsCodeCompletionTrigger(ch) || char.IsLetter(ch)) && _completionWindow == null)
            if (_completionWindow == null && (IsCodeCompletionTrigger(ch) || string.IsNullOrEmpty(lineText.Trim())))// || IsCompletionPosition(caretOffset))
            {
                TriggerCompletion();
            }
        }

 private void PasswordBox_PreviewTextInput(object sender, TextCompositionEventArgs e)
 {
     if (!char.IsNumber(e.Text.ToCharArray()[0]))
     {
         e.Handled = true;
     }
 }

 private void PreviewTextInput(object sender, TextCompositionEventArgs e)
 {
     if ((sender as TextBox).Text.Length >= 2)
         e.Handled = true;
     else
         e.Handled = !IsTextAllowed(e.Text);
 }

 private void GameOneView_TextInput(object sender, TextCompositionEventArgs e)
 {
     var gameOneView = sender as GameOneView;
     if(gameOneView == null) return;
     var gameOneViewModel = gameOneView.DataContext as GameOneViewModel;
     if (gameOneViewModel != null) gameOneViewModel.KeyPressReceivedCommand.Execute(e.Text);
 }

 private void textBox3_TextInputStart(object sender, TextCompositionEventArgs e)
 {
     if (textBox1.Text == "Port")
     {
         textBox1.Text = "";
     }
 }

 private void passwordBox1_TextInputStart(object sender, TextCompositionEventArgs e)
 {
     if (passwordBox1.Password == "******")
     {
         passwordBox1.Password = "";
     }
 }

 private void textBox1_TextInput(object sender, TextCompositionEventArgs e)
 {
     if (textBox1.Text == "Server")
     {
         textBox1.Text = "";
     }
 }

 private void textbox_PreviewTextInput(object sender, TextCompositionEventArgs e)
 {
     FileViewModel vm = DataContext as FileViewModel;
     if (vm == null)
         return;
      vm.Modified = true;
 }

 private void GridPreviewTextInput(object sender, TextCompositionEventArgs e)
 {
     if(e.Source is TextBox
         && !((TextBox)e.Source).Name.Equals("Note")
         && !((TextBox)e.Source).Name.Equals("Barcode"))
             e.Handled = !IsTextValid(e.Text);
 }

        private void value_PreviewTextInput(object sender, TextCompositionEventArgs e)
        {
            var tb = (TextBox)sender;
            var text = tb.Text.Insert(tb.CaretIndex, e.Text);

            e.Handled = !_numMatch.IsMatch(text);
        }

		void VisualElement_TextInput(object sender, TextCompositionEventArgs e) {
			var array = keyProcessors;
			foreach (var keyProcessor in array) {
				if (keyProcessor.IsInterestedInHandledEvents || !e.Handled)
					keyProcessor.TextInput(e);
			}
		}

        private static void textBox_OnPreviewTextInput(object sender, TextCompositionEventArgs e)
        {
            // 入力値が空白の場合は処理しない
            if (string.IsNullOrEmpty(e.TextComposition.Text)) return;

            if (RegexCheck.IsMatched(e.TextComposition.Text, GetInputCharcter((DependencyObject)sender)))
            {
                // 入力条件則に一致する場合は処理続行
                e.Handled = false;
            }
            else
            {
                // Textプロパティを取得
                PropertyInfo property = sender.GetType().GetProperty("Text");
                // Textプロパティの値を取得
                string value = (string)property.GetValue(sender);
                // Textプロパティの値を置換
                value = value.Replace(e.TextComposition.Text, string.Empty);
                // Textプロパティの値を更新
                property.SetValue(sender, value);

                // ComboBoxのText対応
                TextBox comboText = (TextBox)e.OriginalSource;
                if (comboText != sender)
                {
                    comboText.Text = value;
                }
                e.Handled = true;
            }
        }

 private void TextInput(object sender, TextCompositionEventArgs e)
 {
     string message = //"At: " + e.Timestamp.ToString() +
         "Event: " + e.RoutedEvent + " " +
         " Text: " + e.Text;
     lstMessages.Items.Add(message);
 }