# C1.Win.Command.C1ContextMenu.SourceControl ## Content

SourceControl Property

SourceControl

Gets the control that is displaying the shortcut menu.

Declaration

[Browsable(false)]
public Control SourceControl { get; }

<Browsable(False)>
Public ReadOnly Property SourceControl As Control

Remarks

This property enables you to determine which control currently displays the shortcut menu defined in the C1ContextMenu. If the shortcut menu is not currently displayed, you can use this property to determine which control last displayed the shortcut menu. You can use this property in the Popup event to ensure that the control displays the proper menu items. You can also use this property to pass a reference to the control to a method that performs the tasks associated with a menu command displayed in the shortcut menu.

Examples

The following code example creates an event handler for the Popup event of the C1ContextMenu. The code in the event handler determines which of two controls a PictureBox named pictureBox1 and a TextBox named textBox1 is the control displaying the shortcut menu.

Depending on which control caused the C1ContextMenu to display its shortcut menu, the control shows or hides the appropriate menu items of C1Command.

This example requires that you have an instance of the C1ContextMenu class, named c1ContextMenu1, defined within the form. c1ContextMenu should have "Copy", "Find", "Change Picture" menu items. This example also requires that you have a TextBox and PictureBox added to a form and that the C1ContextMenu property of these controls is set to c1ContextMenu1.

 private void c1ContextMenu1_Popup(object sender, EventArgs e)
{
    Control c = c1ContextMenu1.SourceControl;
    // Copy and Find is dispayed for textBox1
    c1CommandCopy.Visible = (c == textBox1);
    c1CommandFind.Visible = (c == textBox1);
    // Change Picture is dispayed for pictureBox1
    c1CommandChangePicture.Visible = (c == pictureBox1);
}