在会话中存储多个值以在安装程序中显示

Question

我有一个wix安装程序，并使用OpenFileDialog允许用户选择文件，所选文件需要存储在会话变量中以显示在安装程序的列表框中

无法在会话变量中存储列表或数组

OpenFileDialog

public static string[] ListFiles()
        {
            using (WinForms.OpenFileDialog file = new WinForms.OpenFileDialog())
            {
                //Allow to select multiple files
                file.Multiselect = true;

                //Allow to select only *.txt Files
                file.Filter = "Only SQL files | *.sql";

                //Show the Dialog box to selcet file(s)
                file.ShowDialog();

                //return input file names
                return file.FileNames;
            }
        }

session["SQL_FILEPATH"] = ListFiles();
This line throws an exception as the session only allows string to be stored.

WiX控件

<Control Id="SqlFiles" Property="SQL_FILEPATH" Type="ListBox" X="20" Y="150" Width="200" Height="52" Sorted="yes">
          <ListBox Property="SQL_FILEPATH">
            <ListItem Text="[SQL_FILEPATH]" Value="[SQL_FILEPATH]"/>
          </ListBox>
        </Control>

列表框应显示所有选定的文件名及其路径。