Set the caret/cursor position to the end of the string value WPF textbox

Question

I am try to set the caret/cursor position to the end of the string value in my WPF textbox when I open my window for the first time. I use the FocusManager to set the focus on my textbox when my window opens. Nothing seems to work. Any ideas? Note, I am using the MVVM pattern, and I included only a portion of the XAML from my code. ```

Accepted Answer

You can set the caret position using `CaretIndex` property of a `TextBox`. Please bear in mind that this is not a `DependencyProperty`. Nevertheless, you may still set it in XAML like this:

```
<TextBox Text="123" CaretIndex="{x:Static System:Int32.MaxValue}" />
```

Please remember to set `CaretIndex` after `Text` property or else it will not work. Thus it probably won't work if you bind to `Text` like in your example. In that case, simply use code-behind like this.

```
NumberOfDigits.CaretIndex = NumberOfDigits.Text.Length;
```

Set the caret/cursor position to the end of the string value WPF textbox

Solution

Problem