How can I insert text into a WPF textbox at caret position? What am I missing? In Win32 you could use CEdit::ReplaceSel().
It should work as if the Paste() command was invoked. But I want to avoid using the clipboard.
A:
Use TextBox.CaretIndex to modify the text bound to the TextBox.Text property.
Thorsten79
2010-01-22 12:54:51
Isn't there something more simple? And what if text is already selected? How can it be replaced by the new text? And how can I make that the caret scrolls into view?
Roice
2010-01-22 12:58:17
Actually this IS a very simple way.
Thorsten79
2010-01-22 13:15:45
But you did not consider my other needs:How can it be replaced by the new text? And how can I make that the caret scrolls into view?
Roice
2010-01-22 14:25:51
Tarsier has answered all that.
Thorsten79
2010-01-22 15:07:18
+3
A:
To simply insert text at the caret position:
textBox.Text = textBox.Text.Insert(textBox.CaretIndex, "<new text>");
To replace the selected text with new text:
textBox.SelectedText = "<new text>";
To scroll the textbox to the caret position:
int lineIndex = textBox.GetLineIndexFromCharacterIndex(textBox.CaretIndex);
textBox.ScrollToLine(lineIndex);
Tarsier
2010-01-22 13:01:45
+1
A:
I found an even more simple solution by myself:
textBox.SelectedText = "New Text";
textBox.SelectionLength = 0;
Then scroll to the position as stated by Tarsier.
Roice
2010-01-22 15:37:34
A:
If you want to move the caret after the inserted text the following code is useful
textBox.SelectedText = "New Text";
textBox.CaretIndex += textBox.SelectedText.Length;
textBox.SelectionLength = 0;
iyalovoi
2010-06-17 00:37:04