xtd::forms::folder_browser_dialog Class Reference

Inheritance diagram for xtd::forms::folder_browser_dialog:

Definition

Prompts the user to select a folder. This class cannot be inherited.

Header

#include <xtd/forms/folder_browser_dialog>

Namespace

xtd::forms

Library

xtd.forms

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Examples

The following code example demonstrates the use of folder_browser_dialog dialog.

#include <xtd/forms/application>
#include <xtd/forms/button>
#include <xtd/forms/folder_browser_dialog>
#include <xtd/forms/form>
#include <xtd/forms/label>
 
using namespace xtd;
using namespace xtd::forms;
 
class form1 : public form {
public:
  form1() {
    text("Folder browser dialog example");
    controls().push_back(button1);
    auto_scroll(true);
    
    button1.location({10, 10});
    button1.text("Folder...");
    button1.click += [&] {
      auto dialog = folder_browser_dialog {};
      dialog.selected_path(selected_path);
      if (dialog.show_sheet_dialog(*this) == forms::dialog_result::ok) {
        selected_path = dialog.selected_path();
        label1.text(string::format("Path = {}", selected_path));
      }
    };
    
    label1.parent(*this);
    label1.text("Path = ");
    label1.auto_size(true);
    label1.location({10, 50});
  }
  
private:
  button button1;
  label label1;
  string selected_path;
};
 
auto main() -> int {
  application::run(form1 {});
}

Examples

folder_browser_dialog.cpp.

Public Constructors
	folder_browser_dialog ()
	Initializes a new instance of the folder_browser_dialog class.

Public Properties
bool	auto_upgrade_enable () const noexcept
	Gets a value that indicates whether the dialog will be automatically upgraded to enable new features.
folder_browser_dialog &	auto_upgrade_enable (bool value)
	Sets a value that indicates whether the dialog will be automatically upgraded to enable new features.
const xtd::string &	description () const noexcept
	Gets the descriptive text displayed above the tree view control in the dialog box.
folder_browser_dialog &	description (const xtd::string &value)
	Sets the descriptive text displayed above the tree view control in the dialog box.
environment::special_folder	root_folder () const noexcept
	Gets the root folder where the browsing starts from.
folder_browser_dialog &	root_folder (environment::special_folder value)
	Sets the root folder where the browsing starts from.
const xtd::string &	selected_path () const noexcept
	Gets the path selected by the user.
folder_browser_dialog &	selected_path (const xtd::string &value)
	Sets the path selected by the user.
bool	show_new_folder_button () const noexcept
	Gets a value indicating whether the New Folder button appears in the folder browser dialog box.
folder_browser_dialog &	show_new_folder_button (bool value)
	Sets a value indicating whether the New Folder button appears in the folder browser dialog box.

Public Methods
void	reset () noexcept override
	Resets all options to their default values, the last selected color to black, and the custom colors to their default values.

Protected Methods
bool	run_dialog (intptr owner) override
	When overridden in a derived class, specifies a common dialog box.
void	run_sheet (intptr owner) override
	When overridden in a derived class, specifies a common dialog box.

Additional Inherited Members
Public Attributes inherited from xtd::forms::common_dialog
event< common_dialog, help_event_handler >	help_request
	Occurs when the user clicks the Help button on a common dialog box.
event< common_dialog, dialog_closed_event_handler >	dialog_closed
	Occurs when the user close a common dialog box with dialog close button or other dialog buttons.
Public Member Functions inherited from xtd::forms::common_dialog
	common_dialog ()
	Initializes a new instance of the common_dialog class.
xtd::forms::dialog_result	dialog_result () const noexcept
	Gets async dialog_result result after dialog box is closing.
std::any	tag () const noexcept
	Gets an object that contains data about the control.
common_dialog &	tag (const std::any &tag)
	Sets an object that contains data about the control.
xtd::forms::dialog_result	show_dialog ()
	Runs a common dialog box with a default owner.
xtd::forms::dialog_result	show_dialog (const iwin32_window &owner)
	Runs a common dialog box with the specified owner.
void	show_sheet (const iwin32_window &owner)
	Runs a common dialog box with the specified owner.
xtd::forms::dialog_result	show_sheet_dialog (const iwin32_window &owner)
	Runs a common dialog box with the specified owner.
Public Member Functions inherited from xtd::object
	object ()=default
	Create a new instance of the ultimate base class object.
virtual bool	equals (const object &obj) const noexcept
	Determines whether the specified object is equal to the current object.
virtual size_t	get_hash_code () const noexcept
	Serves as a hash function for a particular type.
virtual type_object	get_type () const noexcept
	Gets the type of the current instance.
template<typename object_t >
xtd::uptr< object_t >	memberwise_clone () const
	Creates a shallow copy of the current object.
virtual xtd::string	to_string () const noexcept
	Returns a xtd::string that represents the current object.
Static Public Member Functions inherited from xtd::object
template<typename object_a_t , typename object_b_t >
static bool	equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are considered equal.
template<typename object_a_t , typename object_b_t >
static bool	reference_equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are the same instance.
Protected Member Functions inherited from xtd::forms::common_dialog
virtual void	on_dialog_closed (const dialog_closed_event_args &e)
	Raises the common_dialog::dialog_close event.
virtual void	on_help_request (help_event_args &e)
	Raises the common_dialog::help_request event.
void	set_dialog_result (xtd::forms::dialog_result value)
	Sets async dialog_result result after dialog box is closing.
Protected Member Functions inherited from xtd::forms::component
	component ()
	Initialises a new instance of the component class.
virtual bool	can_raise_events () const noexcept
	Gets a value indicating whether the component can raise an event.
bool	design_mode () const noexcept
	Gets a value that indicates whether the component is currently in design mode.

Constructor & Destructor Documentation

folder_browser_dialog()

xtd::forms::folder_browser_dialog::folder_browser_dialog

(

)

Initializes a new instance of the folder_browser_dialog class.

Remarks

The parameterless constructor initializes properties to their default values.

When a new folder_browser_dialog is created, the root_folder property is set to xtd::environment::special_folder::desktop, the description property is set to an empty string (""), the selected_path property is set to an empty string, and the show_new_folder_button property is set to true.

Typically, after creating a new folder_browser_dialog, you set the root_folder to the location from which to start browsing. Optionally, you can set the selected_path to the path of a subfolder of root_folder that will initially be selected. You can also optionally set the description property to provide additional instructions to the user. Finally, call the show_dialog or show_sheet or show_sheet_dialog method to display the dialog box to the user. When the dialog box is closed and the dialog result from show_dialog is dialog_result::ok, the selected_path will be a string containing the path to the selected folder.

folder_browser_dialog is a modal dialog box; therefore, when shown, it blocks the rest of the application until the user has chosen a folder. When a dialog box is displayed modally, no input (keyboard or mouse click) can occur except to objects on the dialog box. The program must hide or close the dialog box (usually in response to some user action) before input to the calling program can occur.

Member Function Documentation

auto_upgrade_enable() [1/2]

bool xtd::forms::folder_browser_dialog::auto_upgrade_enable ( ) const

noexcept

Gets a value that indicates whether the dialog will be automatically upgraded to enable new features.

Returns

true if the the dialog will be automatically upgraded to enable new features; otherwise, false. The default value is true.

auto_upgrade_enable() [2/2]

folder_browser_dialog & xtd::forms::folder_browser_dialog::auto_upgrade_enable

(

bool

value

)

Sets a value that indicates whether the dialog will be automatically upgraded to enable new features.

Parameters

value

true if the the dialog will be automatically upgraded to enable new features; otherwise, false. The default value is true.

Returns

Current folder_browser_dialog.

description() [1/2]

const xtd::string & xtd::forms::folder_browser_dialog::description ( ) const

noexcept

Gets the descriptive text displayed above the tree view control in the dialog box.

Returns

The description to display. The default is an empty string ("").

Remarks

The description property can be used to specify additional information to the user, like instructions.

description() [2/2]

folder_browser_dialog & xtd::forms::folder_browser_dialog::description

(

const xtd::string &

value

)

Sets the descriptive text displayed above the tree view control in the dialog box.

Parameters

value

The description to display. The default is an empty string ("").

Returns

Current folder_browser_dialog.

Remarks

The description property can be used to specify additional information to the user, like instructions.

root_folder() [1/2]

environment::special_folder xtd::forms::folder_browser_dialog::root_folder ( ) const

noexcept

Gets the root folder where the browsing starts from.

Returns

One of the environment::special_folder values. The default is environment::special_folder::desktop.

Remarks

Only the specified folder and any subfolders that are beneath it will appear in the dialog box and be selectable. The selected_path property, along with root_folder, determines what the selected folder will be when the dialog box is displayed, as long as SelectedPath is an absolute path that is a subfolder of root_folder (or more accurately, points to a subfolder of the shell namespace represented by root_folder).

root_folder() [2/2]

folder_browser_dialog & xtd::forms::folder_browser_dialog::root_folder

(

environment::special_folder

value

)

Sets the root folder where the browsing starts from.

Parameters

value

One of the environment::special_folder values. The default is environment::special_folder::desktop.

Returns

Current folder_browser_dialog.

Remarks

Only the specified folder and any subfolders that are beneath it will appear in the dialog box and be selectable. The selected_path property, along with root_folder, determines what the selected folder will be when the dialog box is displayed, as long as SelectedPath is an absolute path that is a subfolder of root_folder (or more accurately, points to a subfolder of the shell namespace represented by root_folder).

selected_path() [1/2]

const xtd::string & xtd::forms::folder_browser_dialog::selected_path ( ) const

noexcept

Gets the path selected by the user.

Returns

The path of the folder first selected in the dialog box or the last folder selected by the user. The default is an empty string ("").

Remarks

If the selected_ath property is set before showing the dialog box, the folder with this path will be the selected folder, as long as selected_path is set to an absolute path that is a subfolder of root_folder (or more accurately, points to a subfolder of the shell namespace represented by root_folder).

If the show_dialog returns OK, meaning the user clicked the OK button, the selected_path property will return a string containing the path to the selected folder. If show_dialog returns Cancel, meaning the user canceled out of the dialog box, this property will have the same value that it had prior to displaying the dialog box. If the user selects a folder that does not have a physical path (for example, My Computer), the OK button on the dialog box will be disabled.

Examples

folder_browser_dialog.cpp.

selected_path() [2/2]

folder_browser_dialog & xtd::forms::folder_browser_dialog::selected_path

(

const xtd::string &

value

)

Sets the path selected by the user.

Parameters

value

The path of the folder first selected in the dialog box or the last folder selected by the user. The default is an empty string ("").

Returns

Current folder_browser_dialog.

Remarks

If the selected_ath property is set before showing the dialog box, the folder with this path will be the selected folder, as long as selected_path is set to an absolute path that is a subfolder of root_folder (or more accurately, points to a subfolder of the shell namespace represented by root_folder).

If the show_dialog returns OK, meaning the user clicked the OK button, the selected_path property will return a string containing the path to the selected folder. If show_dialog returns Cancel, meaning the user canceled out of the dialog box, this property will have the same value that it had prior to displaying the dialog box. If the user selects a folder that does not have a physical path (for example, My Computer), the OK button on the dialog box will be disabled.

show_new_folder_button() [1/2]

bool xtd::forms::folder_browser_dialog::show_new_folder_button ( ) const

noexcept

Gets a value indicating whether the New Folder button appears in the folder browser dialog box.

Returns

true if the New Folder button is shown in the dialog box; otherwise, false. The default is true.

Remarks

When show_new_folder_button is true, the New Folder button is visible, giving the user a chance to create a folder. When the user clicks the New Folder button, a new folder is created and the user is prompted to specify the folder name. The selected node in the tree becomes the parent of the new folder. The actual caption of the New Folder button can vary depending upon the operating system

show_new_folder_button() [2/2]

folder_browser_dialog & xtd::forms::folder_browser_dialog::show_new_folder_button

(

bool

value

)

Sets a value indicating whether the New Folder button appears in the folder browser dialog box.

Parameters

value

true if the New Folder button is shown in the dialog box; otherwise, false. The default is true.

Remarks

When show_new_folder_button is true, the New Folder button is visible, giving the user a chance to create a folder. When the user clicks the New Folder button, a new folder is created and the user is prompted to specify the folder name. The selected node in the tree becomes the parent of the new folder. The actual caption of the New Folder button can vary depending upon the operating system

reset()

void xtd::forms::folder_browser_dialog::reset ( )

overridevirtualnoexcept

Resets all options to their default values, the last selected color to black, and the custom colors to their default values.

Implements xtd::forms::common_dialog.

run_dialog()

bool xtd::forms::folder_browser_dialog::run_dialog ( intptr  owner )

overrideprotectedvirtual

When overridden in a derived class, specifies a common dialog box.

Parameters

owner

A value that represents the window handle of the owner window for the common dialog box.

Returns

true if the dialog box was successfully run; otherwise, false.

Implements xtd::forms::common_dialog.

run_sheet()

void xtd::forms::folder_browser_dialog::run_sheet ( intptr  owner )

overrideprotectedvirtual

When overridden in a derived class, specifies a common dialog box.

Parameters

owner

A value that represents the window handle of the owner window for the common dialog box.

Implements xtd::forms::common_dialog.

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The documentation for this class was generated from the following file:

• xtd.forms/include/xtd/forms/folder_browser_dialog.h