PowerWEB LiveControls for ASP.NET
HelpRequested Event
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Dart.LiveControls Namespace > LiveImage Class : HelpRequested Event



Occurs when F1 is pressed while the control has focus.

Syntax

Visual Basic (Declaration) 
<CategoryAttribute("Action")>
<DescriptionAttribute("Event raised when F1 is pressed while the control has focus.")>
Public Event HelpRequested As LocationEventHandler
Visual Basic (Usage)Copy Code
Dim instance As LiveImage
Dim handler As LocationEventHandler
 
AddHandler instance.HelpRequested, handler
C# 
[CategoryAttribute("Action")]
[DescriptionAttribute("Event raised when F1 is pressed while the control has focus.")]
public event LocationEventHandler HelpRequested
C++/CLI 
[CategoryAttribute("Action")]
[DescriptionAttribute("Event raised when F1 is pressed while the control has focus.")]
public:
event LocationEventHandler^ HelpRequested

Event Data

The event handler receives an argument of type LocationEventArgs containing data related to this event. The following LocationEventArgs properties provide information specific to this event.

PropertyDescription
X Gets or sets the x-coordinate of the WebForm when the mouse is clicked.
Y Gets or sets the y-coordinate of the WebForm when the mouse is clicked.

Example

The following example demonstrates PowerWEB events not found in other Server controls.
Visual BasicCopy Code
'In this example, events fire as the user interacts with a PowerWEB Control
'These events are not found in non-PowerWEB Server controls
'When an event is raised, a PowerWEB control updates with a message

Private Sub PowerWEBControl1_ContextMenuChanged(ByVal sender As Object, ByVal e As LocationEventArgs) Handles PowerWEBControl1.ContextMenuChanged
    PowerWEBControl1.Text = "You pressed the right button"
End Sub

Private Sub PowerWEBControl1_DoubleClick(ByVal sender As Object, ByVal e As LocationEventArgs) Handles PowerWEBControl1.DoubleClick
    PowerWEBControl1.Text = "That was a nice double-click"
End Sub

Private Sub PowerWEBControl1_GotFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles PowerWEBControl1.GotFocus
    PowerWEBControl1.Text = "I am focused"
End Sub

Private Sub PowerWEBControl1_HelpRequested(ByVal sender As Object, ByVal e As LocationEventArgs) Handles PowerWEBControl1.HelpRequested
    PowerWEBControl1.Text = "You pressed F1  Need some help?"
End Sub

Private Sub PowerWEBControl1_KeyDown(ByVal sender As Object, ByVal e As KeyEventArgs) Handles PowerWEBControl1.KeyDown
    PowerWEBControl1.Text = "The " + Convert.ToChar(e.KeyCode).ToString() + " key has gone down"
End Sub

Private Sub PowerWEBControl1_KeyPress(ByVal sender As Object, ByVal e As KeyEventArgs) Handles PowerWEBControl1.KeyPress
    PowerWEBControl1.Text = "The " + Convert.ToChar(e.KeyCode).ToString() + " key has been pressed"
End Sub

Private Sub PowerWEBControl1_KeyUp(ByVal sender As Object, ByVal e As KeyEventArgs) Handles PowerWEBControl1.KeyUp
    PowerWEBControl1.Text = "The " + Convert.ToChar(e.KeyCode).ToString() + " key has gone up"
End Sub

Private Sub PowerWEBControl1_LocationClick(ByVal sender As Object, ByVal e As LocationEventArgs) Handles PowerWEBControl1.LocationClick
    PowerWEBControl1.Text = "The button was pressed at (" + e.X.ToString() + "," + e.Y.ToString() + ")"
End Sub

Private Sub PowerWEBControl1_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles PowerWEBControl1.LostFocus
    PowerWEBControl1.Text = "I'm losing focus"
End Sub

Private Sub PowerWEBControl1_MouseDown(ByVal sender As Object, ByVal e As LocationEventArgs) Handles PowerWEBControl1.MouseDown
    PowerWEBControl1.Text = "Down goes the mouse button"
End Sub

Private Sub PowerWEBControl1_MouseEnter(ByVal sender As Object, ByVal e As LocationEventArgs) Handles PowerWEBControl1.MouseEnter
    PowerWEBControl1.Text = "That tickles"
End Sub

Private Sub PowerWEBControl1_MouseLeave(ByVal sender As Object, ByVal e As LocationEventArgs) Handles PowerWEBControl1.MouseLeave
    PowerWEBControl1.Text = "Come back"
End Sub

Private Sub PowerWEBControl1_MouseUp(ByVal sender As Object, ByVal e As LocationEventArgs) Handles PowerWEBControl1.MouseUp
    PowerWEBControl1.Text = "Up goes the mouse button"
End Sub
C#Copy Code
//In this example, events fire as the user interacts with a PowerWEB Control
//These events are not found in non-PowerWEB Server controls
//When an event is raised, a PowerWEB control updates with a message

private void PowerWEBControl1_ContextMenuChanged(object sender, LocationEventArgs e)
{
	PowerWEBControl1.Text = "You pressed the right button!";
}

private void PowerWEBControl1_DoubleClick(object sender, LocationEventArgs e)
{
	PowerWEBControl1.Text = "That was a nice double-click!";
}

private void PowerWEBControl1_GotFocus(object sender, System.EventArgs e)
{
	PowerWEBControl1.Text = "I am focused!";
}

private void PowerWEBControl1_HelpRequested(object sender, LocationEventArgs e)
{
	PowerWEBControl1.Text = "You pressed F1!  Need some help?";
}

private void PowerWEBControl1_KeyDown(object sender, KeyEventArgs e)
{
	PowerWEBControl1.Text = "The " + Convert.ToChar(e.KeyCode).ToString() + " key has gone down!";
}

private void PowerWEBControl1_KeyPress(object sender, KeyEventArgs e)
{
	PowerWEBControl1.Text = "The " + Convert.ToChar(e.KeyCode).ToString() + " key has been pressed!";
}

private void PowerWEBControl1_KeyUp(object sender, KeyEventArgs e)
{
	PowerWEBControl1.Text = "The " + Convert.ToChar(e.KeyCode).ToString() + " key has gone up!";
}

private void PowerWEBControl1_LocationClick(object sender, LocationEventArgs e)
{
	PowerWEBControl1.Text = "The button was pressed at (" + e.X.ToString() + "," + e.Y.ToString() + ")!";
}

private void PowerWEBControl1_LostFocus(object sender, System.EventArgs e)
{
	PowerWEBControl1.Text = "I'm losing focus!";
}

private void PowerWEBControl1_MouseDown(object sender, LocationEventArgs e)
{
	PowerWEBControl1.Text = "Down goes the mouse button!";
}

private void PowerWEBControl1_MouseEnter(object sender, LocationEventArgs e)
{
	PowerWEBControl1.Text = "That tickles!";
}

private void PowerWEBControl1_MouseLeave(object sender, LocationEventArgs e)
{
	PowerWEBControl1.Text = "Come back!";
}

private void PowerWEBControl1_MouseUp(object sender, LocationEventArgs e)
{
	PowerWEBControl1.Text = "Up goes the mouse button!";
}

Remarks

The HelpRequested event fires when F1 is pressed while the control has focus.

Requirements

Target Platforms: Microsoft .NET Framework 2.0

See Also

Documentation Version 4.0.2
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