/// <summary>
/// The required implementation of CommonDialog that shows the Task Dialog.
/// </summary>
/// <param name="hwndOwner">Owner window. This can be null.</param>
/// <returns>If this method returns true, then ShowDialog will return DialogResult.OK.
/// If this method returns false, then ShowDialog will return DialogResult.Cancel. The
/// user of this class must use the TaskDialogResult member to get more information.
/// </returns>
protected override bool RunDialog(IntPtr hwndOwner)
{
_taskDialogResult = _taskDialog.Show(hwndOwner, TaskConfig, out _verificationFlagCheckedResult);
return(_taskDialogResult != (int)DialogResult.Cancel);
}
private static TaskDialogResult ShowTaskDialog(TaskDialogOptions options)
{
var td = new NativeTaskDialog();
td.WindowTitle = options.Title;
td.MainInstruction = options.MainInstruction;
td.Content = options.Content;
td.ExpandedInformation = options.ExpandedInfo;
td.Footer = options.FooterText;
bool hasCustomCancel = false;
// Use of Command Links overrides any custom defined buttons
if (options.CommandLinks != null && options.CommandLinks.Length > 0)
{
List <TaskDialogButton> lst = new List <TaskDialogButton>();
for (int i = 0; i < options.CommandLinks.Length; i++)
{
try
{
TaskDialogButton button = new TaskDialogButton();
button.ButtonId = GetButtonIdForCommandButton(i);
button.ButtonText = options.CommandLinks[i];
lst.Add(button);
}
catch (FormatException)
{
}
}
td.Buttons = lst.ToArray();
if (options.DefaultButtonIndex.HasValue &&
options.DefaultButtonIndex >= 0 &&
options.DefaultButtonIndex.Value < td.Buttons.Length)
{
td.DefaultButton = td.Buttons[options.DefaultButtonIndex.Value].ButtonId;
}
}
else if (options.CustomButtons != null && options.CustomButtons.Length > 0)
{
List <TaskDialogButton> lst = new List <TaskDialogButton>();
for (int i = 0; i < options.CustomButtons.Length; i++)
{
try
{
TaskDialogButton button = new TaskDialogButton();
button.ButtonId = GetButtonIdForCustomButton(i);
button.ButtonText = options.CustomButtons[i];
if (!hasCustomCancel)
{
hasCustomCancel =
(button.ButtonText == TaskDialogOptions.LocalizedStrings.CommonButton_Close ||
button.ButtonText == TaskDialogOptions.LocalizedStrings.CommonButton_Cancel);
}
lst.Add(button);
}
catch (FormatException)
{
}
}
td.Buttons = lst.ToArray();
if (options.DefaultButtonIndex.HasValue &&
options.DefaultButtonIndex.Value >= 0 &&
options.DefaultButtonIndex.Value < td.Buttons.Length)
{
td.DefaultButton = td.Buttons[options.DefaultButtonIndex.Value].ButtonId;
}
td.CommonButtons = TaskDialogCommonButtons.None;
}
if (options.RadioButtons != null && options.RadioButtons.Length > 0)
{
List <TaskDialogButton> lst = new List <TaskDialogButton>();
for (int i = 0; i < options.RadioButtons.Length; i++)
{
try
{
TaskDialogButton button = new TaskDialogButton();
button.ButtonId = GetButtonIdForRadioButton(i);
button.ButtonText = options.RadioButtons[i];
lst.Add(button);
}
catch (FormatException)
{
}
}
td.RadioButtons = lst.ToArray();
td.NoDefaultRadioButton = (!options.DefaultButtonIndex.HasValue || options.DefaultButtonIndex.Value == -1);
if (options.DefaultButtonIndex.HasValue &&
options.DefaultButtonIndex >= 0 &&
options.DefaultButtonIndex.Value < td.RadioButtons.Length)
{
td.DefaultButton = td.RadioButtons[options.DefaultButtonIndex.Value].ButtonId;
}
}
if (options.CommonButtons != TaskDialogCommonButtons.None)
{
td.CommonButtons = options.CommonButtons;
if (options.DefaultButtonIndex.HasValue &&
options.DefaultButtonIndex >= 0)
{
td.DefaultButton = GetButtonIdForCommonButton(options.CommonButtons, options.DefaultButtonIndex.Value);
}
}
td.MainIcon = options.MainIcon;
td.CustomMainIcon = options.CustomMainIcon;
td.FooterIcon = options.FooterIcon;
td.CustomFooterIcon = options.CustomFooterIcon;
td.EnableHyperlinks = DetectHyperlinks(options.Content, options.ExpandedInfo, options.FooterText);
td.AllowDialogCancellation =
(options.AllowDialogCancellation ||
hasCustomCancel ||
options.CommonButtons.HasFlag(TaskDialogCommonButtons.Close) ||
options.CommonButtons.HasFlag(TaskDialogCommonButtons.Cancel));
td.CallbackTimer = options.EnableCallbackTimer;
td.ExpandedByDefault = options.ExpandedByDefault;
td.ExpandFooterArea = options.ExpandToFooter;
td.PositionRelativeToWindow = true;
td.RightToLeftLayout = false;
td.NoDefaultRadioButton = false;
td.CanBeMinimized = false;
td.ShowProgressBar = options.ShowProgressBar;
td.ShowMarqueeProgressBar = options.ShowMarqueeProgressBar;
td.UseCommandLinks = (options.CommandLinks != null && options.CommandLinks.Length > 0);
td.UseCommandLinksNoIcon = false;
td.VerificationText = options.VerificationText;
td.VerificationFlagChecked = options.VerificationByDefault;
td.ExpandedControlText = "Hide details";
td.CollapsedControlText = "Show details";
td.Callback = options.Callback;
td.CallbackData = options.CallbackData;
td.Config = options;
TaskDialogResult result;
int diagResult = 0;
TaskDialogSimpleResult simpResult = TaskDialogSimpleResult.None;
bool verificationChecked = false;
int radioButtonResult = -1;
int? commandButtonResult = null;
int? customButtonResult = null;
diagResult = td.Show(options.Owner, out verificationChecked, out radioButtonResult);
if (radioButtonResult >= RadioButtonIDOffset)
{
simpResult = (TaskDialogSimpleResult)diagResult;
radioButtonResult -= RadioButtonIDOffset;
}
if (diagResult >= CommandButtonIDOffset)
{
simpResult = TaskDialogSimpleResult.Command;
commandButtonResult = diagResult - CommandButtonIDOffset;
}
else if (diagResult >= CustomButtonIDOffset)
{
simpResult = TaskDialogSimpleResult.Custom;
customButtonResult = diagResult - CustomButtonIDOffset;
}
else
{
simpResult = (TaskDialogSimpleResult)diagResult;
}
result = new TaskDialogResult(
simpResult,
(String.IsNullOrEmpty(options.VerificationText) ? null : (bool?)verificationChecked),
((options.RadioButtons == null || options.RadioButtons.Length == 0) ? null : (int?)radioButtonResult),
((options.CommandLinks == null || options.CommandLinks.Length == 0) ? null : commandButtonResult),
((options.CustomButtons == null || options.CustomButtons.Length == 0) ? null : customButtonResult));
return(result);
}