My goal is to double click the entire part of "i.a." like this however the default for WPF is it selects each part of the string individually
Sample:
<TextBox>Reason for contact: i.a.</TextBox>
I've attempted to use SpellCheck.CustomDictionaries, word selection is unaffected by these.
Try this one. It selects text part depending on caret position (which is SelectionStart - 1) from nearest left whitespace ' ' (or start of string) to nearest right one (or end of string).
private void OnMouseDoubleClick(object sender, MouseButtonEventArgs e)
{
if (sender is TextBox tb)
{
char[] chars = tb.Text.ToCharArray();
int i;
// Find nearest left whitespace or start of string
for (i = tb.SelectionStart - 1; i >= 0 && chars[i] != ' '; i--);
int selectionStart = i + 1;
// Find nearest right whitespace or end of string
for (i = tb.SelectionStart; i < chars.Length && chars[i] != ' '; i++);
int selectionLength = i - selectionStart;
tb.Select(selectionStart, selectionLength);
}
}
