Control.DoubleClick Event
Occurs when the control is double-clicked.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
A double-click is determined by the mouse settings of the user's operating system. The user can set the time between clicks of a mouse button that should be considered a double-click rather than two clicks. The Click event is raised every time a control is double-clicked. For example, if you have event handlers for the Click and DoubleClick events of a Form, the Click and DoubleClick events are raised when the form is double-clicked and both methods are called. If a control is double-clicked and that control does not support the DoubleClick event, the Click event might be raised twice.
You must set the StandardDoubleClick and StandardClick values of ControlStyles to true for this event to be raised. These values might already be set to true if you are inheriting from existing Windows Forms controls.
Note |
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The following events are not raised for the TabControl class unless there is at least one TabPage in the TabControl.TabPages collection: Click, DoubleClick, MouseDown, MouseUp, MouseHover, MouseEnter, MouseLeave and MouseMove. If there is at least one TabPage in the collection, and the user interacts with the tab control's header (where the TabPage names appear), the TabControl raises the appropriate event. However, if the user interaction is within the client area of the tab page, the TabPage raises the appropriate event. |
For more information about handling events, see Handling and Raising Events.
Notes to Inheritors:
Inheriting from a standard Windows Forms control and changing the StandardClick or StandardDoubleClick values of ControlStyles to true can cause unexpected behavior or have no effect at all if the control does not support the Click or DoubleClick events.
The following table lists Windows Forms controls and which event (Click or DoubleClick) is raised in response to the mouse action specified.
Control | Left Mouse Click | Left Mouse Double Click | Right Mouse Click | Right Mouse Double Click | Middle Mouse Click | Middle Mouse Double Click | XButton1 Mouse Click | XButton1 Mouse Double-Click | XButton2 Mouse Click | XButton2 Mouse Double-Click |
|---|---|---|---|---|---|---|---|---|---|---|
none | none | none | none | none | none | none | none | none | none | |
Click | Click, Click | none | none | none | none | none | none | none | none | |
Click | Click, DoubleClick | none | none | none | none | none | none | none | none | |
Click | Click, DoubleClick | none | none | none | none | none | none | none | none | |
* TreeView, * ListView | Click | Click, DoubleClick | Click | Click, DoubleClick | none | none | none | none | none | none |
Click | Click, Click | Click | Click, Click | Click | Click, Click | Click | Click, Click | Click | Click, Click | |
Form, ** TabControl | Click | Click, DoubleClick | Click | Click, DoubleClick | Click | Click, DoubleClick | Click | Click, DoubleClick | Click | Click, DoubleClick |
* The mouse pointer must be over a child object (TreeNode or ListViewItem).
** The TabControl must have at least one TabPage in its TabPages collection.
Available since 1.1
