Get Caret Position in a RichTextBox by using RichTextBox.CaretPosition.GetPositionAtOffset : RichTextBox « Windows Presentation Foundation « C# / CSharp Tutorial

Home
C# / CSharp Tutorial
1.Language Basics
2.Data Type
3.Operator
4.Statement
5.String
6.struct
7.Class
8.Operator Overload
9.delegate
10.Attribute
11.Data Structure
12.Assembly
13.Date Time
14.Development
15.File Directory Stream
16.Preprocessing Directives
17.Regular Expression
18.Generic
19.Reflection
20.Thread
21.I18N Internationalization
22.LINQ
23.GUI Windows Forms
24.Windows Presentation Foundation
25.Windows Communication Foundation
26.Workflow
27.2D
28.Design Patterns
29.Windows
30.XML
31.XML LINQ
32.ADO.Net
33.Network
34.Directory Services
35.Security
36.unsafe
C# / C Sharp
C# / C Sharp by API
C# / CSharp Open Source
C# / CSharp Tutorial » Windows Presentation Foundation » RichTextBox 
24.39.3.Get Caret Position in a RichTextBox by using RichTextBox.CaretPosition.GetPositionAtOffset
<Window 
  x:Class="WpfApplication1.Window1"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Title="Window1" Height="600" Width="800">
  <DockPanel>
    <StackPanel DockPanel.Dock="Bottom" Orientation="Horizontal">
      <TextBox x:Name="tbxInsertionText" Width="200" Margin="5,0" />
      <Button DockPanel.Dock="Bottom" Content="Insert" Click="btnInsert_Click"/>
    </StackPanel>
    <RichTextBox x:Name="rtbTextContent" />
  </DockPanel>
</Window>
//File:Window.xaml.cs
using System.Windows;
using System.Windows.Documents;
using System.Windows.Input;

namespace WpfApplication1
{
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
        }

        private void btnInsert_Click(object sender, RoutedEventArgs e)
        {
            if (string.IsNullOrEmpty(tbxInsertionText.Text))
            {
                return;
            }
            rtbTextContent.BeginChange();
            if (rtbTextContent.Selection.Text != string.Empty)
            {
                rtbTextContent.Selection.Text = string.Empty;
            }
            TextPointer tp = rtbTextContent.CaretPosition.GetPositionAtOffset(0, LogicalDirection.Forward);
            rtbTextContent.CaretPosition.InsertTextInRun(tbxInsertionText.Text);
            rtbTextContent.CaretPosition = tp;
            rtbTextContent.EndChange();
            Keyboard.Focus(rtbTextContent);
        }
    }
}
WPF Get Caret Position In A Rich Text Box By Using Rich Text Box Caret Position Get Position At Offset
24.39.RichTextBox
24.39.1.Programmatically Insert Text into a RichTextBoxProgrammatically Insert Text into a RichTextBox
24.39.2.Get selected text from RichTextBox by using RichTextBox.Selection.TextGet selected text from RichTextBox by using RichTextBox.Selection.Text
24.39.3.Get Caret Position in a RichTextBox by using RichTextBox.CaretPosition.GetPositionAtOffsetGet Caret Position in a RichTextBox by using RichTextBox.CaretPosition.GetPositionAtOffset
24.39.4.Add / Remove TextChanged event for RichTextBoxAdd / Remove TextChanged event for RichTextBox
24.39.5.Select all text from RichTextBox and cutSelect all text from RichTextBox and cut
24.39.6.Load or Save the Content of a RichTextBoxLoad or Save the Content of a RichTextBox
24.39.7.Get the content from the rich text box.Get the content from the rich text box.
24.39.8.Apply Syntax Highlighting in a Text ControlApply Syntax Highlighting in a Text Control
24.39.9.Edit Rich Text with RichTextBox
24.39.10.Get FlowDocument from RichTextBox
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.