/// <summary>
/// Handles the help event for any bound controls.
/// </summary>
private void OnControlHelp(object sender, HelpEventArgs hevent)
{
Control ctl = (Control)sender;
string helpString = GetHelpString(ctl);
string keyword = GetHelpKeyword(ctl);
HelpNavigator navigator = GetHelpNavigator(ctl);
if (!GetShowHelp(ctl) || hevent == null)
{
return;
}
if (Control.MouseButtons != MouseButtons.None && !string.IsNullOrEmpty(helpString))
{
Debug.WriteLineIf(Help.WindowsFormsHelpTrace.TraceVerbose, "HelpProvider:: Mouse down w/ helpstring");
Help.ShowPopup(ctl, helpString, hevent.MousePos);
hevent.Handled = true;
return;
}
// If we have a help file, and help keyword we try F1 help next
if (HelpNamespace != null)
{
Debug.WriteLineIf(Help.WindowsFormsHelpTrace.TraceVerbose, "HelpProvider:: F1 help");
if (!string.IsNullOrEmpty(keyword))
{
Help.ShowHelp(ctl, HelpNamespace, navigator, keyword);
}
else
{
Help.ShowHelp(ctl, HelpNamespace, navigator);
}
hevent.Handled = true;
return;
}
// So at this point we don't have a help keyword, so try to display
// the whats this help
if (!string.IsNullOrEmpty(helpString))
{
Debug.WriteLineIf(Help.WindowsFormsHelpTrace.TraceVerbose, "HelpProvider:: back to helpstring");
Help.ShowPopup(ctl, helpString, hevent.MousePos);
hevent.Handled = true;
return;
}
}
private void OnControlHelp(object sender, HelpEventArgs hevent)
{
Control ctl = (Control)sender;
string helpString = this.GetHelpString(ctl);
string helpKeyword = this.GetHelpKeyword(ctl);
HelpNavigator helpNavigator = this.GetHelpNavigator(ctl);
if (this.GetShowHelp(ctl))
{
if (((Control.MouseButtons != MouseButtons.None) && (helpString != null)) && (helpString.Length > 0))
{
Help.ShowPopup(ctl, helpString, hevent.MousePos);
hevent.Handled = true;
}
if (!hevent.Handled && (this.helpNamespace != null))
{
if ((helpKeyword != null) && (helpKeyword.Length > 0))
{
Help.ShowHelp(ctl, this.helpNamespace, helpNavigator, helpKeyword);
hevent.Handled = true;
}
if (!hevent.Handled)
{
Help.ShowHelp(ctl, this.helpNamespace, helpNavigator);
hevent.Handled = true;
}
}
if ((!hevent.Handled && (helpString != null)) && (helpString.Length > 0))
{
Help.ShowPopup(ctl, helpString, hevent.MousePos);
hevent.Handled = true;
}
if (!hevent.Handled && (this.helpNamespace != null))
{
Help.ShowHelp(ctl, this.helpNamespace);
hevent.Handled = true;
}
}
}
/// <include file='doc\HelpProvider.uex' path='docs/doc[@for="HelpProvider.OnControlHelp"]/*' />
/// <devdoc>
/// Handles the help event for any bound controls.
/// </devdoc>
/// <internalonly/>
private void OnControlHelp(object sender, HelpEventArgs hevent)
{
Control ctl = (Control)sender;
string helpString = GetHelpString(ctl);
string keyword = GetHelpKeyword(ctl);
HelpNavigator navigator = GetHelpNavigator(ctl);
bool show = GetShowHelp(ctl);
if (!show)
{
return;
}
// If the mouse was down, we first try whats this help
//
if (Control.MouseButtons != MouseButtons.None && helpString != null)
{
Debug.WriteLineIf(Help.WindowsFormsHelpTrace.TraceVerbose, "HelpProvider:: Mouse down w/ helpstring");
if (helpString.Length > 0)
{
Help.ShowPopup(ctl, helpString, hevent.MousePos);
hevent.Handled = true;
}
}
// If we have a help file, and help keyword we try F1 help next
//
if (!hevent.Handled && helpNamespace != null)
{
Debug.WriteLineIf(Help.WindowsFormsHelpTrace.TraceVerbose, "HelpProvider:: F1 help");
if (keyword != null)
{
if (keyword.Length > 0)
{
Help.ShowHelp(ctl, helpNamespace, navigator, keyword);
hevent.Handled = true;
}
}
if (!hevent.Handled)
{
Help.ShowHelp(ctl, helpNamespace, navigator);
hevent.Handled = true;
}
}
// So at this point we don't have a help keyword, so try to display
// the whats this help
//
if (!hevent.Handled && helpString != null)
{
Debug.WriteLineIf(Help.WindowsFormsHelpTrace.TraceVerbose, "HelpProvider:: back to helpstring");
if (helpString.Length > 0)
{
Help.ShowPopup(ctl, helpString, hevent.MousePos);
hevent.Handled = true;
}
}
// As a last resort, just popup the contents page of the help file...
//
if (!hevent.Handled && helpNamespace != null)
{
Debug.WriteLineIf(Help.WindowsFormsHelpTrace.TraceVerbose, "HelpProvider:: contents");
Help.ShowHelp(ctl, helpNamespace);
hevent.Handled = true;
}
}