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PopupEventArgs.AssociatedControl Property

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Definition

Namespace:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll

Gets the control for which the ToolTip is being drawn.

public:
 property System::Windows::Forms::Control ^ AssociatedControl { System::Windows::Forms::Control ^ get(); };
public System.Windows.Forms.Control AssociatedControl { get; }
public System.Windows.Forms.Control? AssociatedControl { get; }
member this.AssociatedControl : System.Windows.Forms.Control
Public ReadOnly Property AssociatedControl As Control

Property Value

Control

The Control that is associated with the ToolTip, or null if the ToolTip is not associated with a control.

Examples

The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the ToolTip.Popup event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing MessageBox.Show with Console.WriteLine or appending the message to a multiline TextBox.

To run the example code, paste it into a project that contains an instance of type ToolTip named ToolTip1. Then ensure that the event handler is associated with the ToolTip.Popup event.

private void ToolTip1_Popup(Object sender, PopupEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "AssociatedWindow", e.AssociatedWindow );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "AssociatedControl", e.AssociatedControl );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "IsBalloon", e.IsBalloon );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "ToolTipSize", e.ToolTipSize );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Cancel", e.Cancel );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "Popup Event" );
}

Private Sub ToolTip1_Popup(sender as Object, e as PopupEventArgs) _ 
     Handles ToolTip1.Popup

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "AssociatedWindow", e.AssociatedWindow)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "AssociatedControl", e.AssociatedControl)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "IsBalloon", e.IsBalloon)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "ToolTipSize", e.ToolTipSize)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Cancel", e.Cancel)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"Popup Event")

End Sub

Remarks

Because you can associate the ToolTip with multiple controls through the ToolTip.SetToolTip method, you can use the AssociatedControl property to determine which control the Draw event is associated with. This is helpful if you want to perform different ToolTip customization based on the associated control.

Applies to

See also