C# (CSharp) System.Windows.Controls.TextBox.GetLineIndexFromCharacterIndexの例

コード例 #1

ファイル: MainWindow.xaml.cs プロジェクト: ZhuanOpt/PyStudio

        //设置已选文本提示
        private void TextBox_SelectionChanged(object sender, RoutedEventArgs e)
        {
            System.Windows.Controls.TextBox textBox = sender as System.Windows.Controls.TextBox;
            int row = textBox.GetLineIndexFromCharacterIndex(textBox.CaretIndex);
            int col = textBox.CaretIndex - textBox.GetCharacterIndexFromLineIndex(row);


            txtStatus_row.Text    = $"行：{ row + 1}";
            txtStatus_col.Text    = $"列：{ col + 1}";;
            txtStatus_select.Text = "已选：" + textBox.SelectionLength;
        }