/// <summary>
/// Adding a question which expects a optional integer as answer
/// </summary>
/// <typeparam name="T">bound type</typeparam>
/// <param name="dialog">the dialog</param>
/// <param name="field">field to be bound</param>
/// <param name="question">the question</param>
/// <returns>the dialog</returns>
public static ISimpleDialog <T> AskOptional <T>(this ISimpleDialog <T> dialog, Expression <Func <T, int?> > field, string question)
{
dialog.AddOption(new OptIntegerDialogOption <T>(field, question, dialog.Item));
return(dialog);
}
/// <summary>
/// Adding a question which expects a decimal as answer
/// </summary>
/// <typeparam name="T">bound type</typeparam>
/// <param name="dialog">the dialog</param>
/// <param name="field">field to be bound</param>
/// <param name="question">the question</param>
/// <returns>the dialog</returns>
public static ISimpleDialog <T> Ask <T>(this ISimpleDialog <T> dialog, Expression <Func <T, decimal> > field, string question)
{
dialog.AddOption(new DecimalDialogOption <T>(field, question, dialog.Item));
return(dialog);
}
/// <summary>
/// Adding a question which expects a optional string that matches the given regex as answer
/// </summary>
/// <typeparam name="T">bound type</typeparam>
/// <param name="dialog">the dialog</param>
/// <param name="field">field to be bound</param>
/// <param name="question">the question</param>
/// <param name="filter">regex</param>
/// <returns>the dialog</returns>
public static ISimpleDialog <T> AskOptional <T>(this ISimpleDialog <T> dialog, Expression <Func <T, string> > field, string question, Regex filter)
{
dialog.AddOption(new StringDialogOption <T>(field, question, dialog.Item, true, filter));
return(dialog);
}
/// <summary>
/// Adding a question which expects a string as answer
/// </summary>
/// <typeparam name="T">bound type</typeparam>
/// <param name="dialog">the dialog</param>
/// <param name="field">field to be bound</param>
/// <param name="question">the question</param>
/// <returns>the dialog</returns>
public static ISimpleDialog <T> Ask <T>(this ISimpleDialog <T> dialog, Expression <Func <T, string> > field, string question)
{
dialog.AddOption(new StringDialogOption <T>(field, question, dialog.Item, false));
return(dialog);
}