RichTextBox C# Set caret location winforms

Question

I am building a chat application where the user enters its text to a richtextbox.

In the rich text box there is an initial text which says: \"Me: \".

Now, when

Answer 1

Use the Select method:

public void Select(
    int start,
    int length
)

richTextBoxUserText.Select(richTextBoxUserText.TextLength, 0);

Answer 2

Winforms: RichTextBox.SelectionStart & set RichTextBox.SelectionLength to 0.

WPF: RichTextBox.CaretPosition

Answer 3

Found it googling on the property SelectionProtected

richTextBoxUserText.Text = INITIAL_TEXT;
richTextBoxUserText.SelectAll();
richTextBoxUserText.SelectionColor = Color.Red;
richTextBoxUserText.SelectionProtected = true;
richTextBoxUserText.SelectionLength = 0;
richTextBoxUserText.SelectionStart = richTextBoxUserText.TextLength + 1;

Answer 4

You can set the caret position with the SelectionStart and SelectionLength properties of the rich text box. Set SelectionLength to 0 and then set SelectionStart to the location where you want the caret to appear.

The documentation for SelectionStart says:

If no text is selected in the control, this property indicates the insertion point, or caret, for new text.

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The Win32 API function SetCaretPos is much too low level for your needs.