You cannot control the behavior that occurs when a user presses ENTER when you add a ToolStripComboBox control to a Windows Application project that uses the .NET Framework 2.0

View products that this article applies to.

SYMPTOMS

When you add a ToolStripComboBox control to a Microsoft Windows Application project that uses the Microsoft .NET Framework 2.0, you cannot control the behavior that occurs when a user presses ENTER.

Back to the top

CAUSE

This problem occurs because the ToolStripComboBox and ComboBox controls do not contain an AcceptsReturn property that you can use to control ENTER key behavior.

Back to the top

WORKAROUND

To work around this problem, use one of the following methods:

Add a KeyUp event handler to the ToolStripComboBox control. To do this, use code that resembles the following code example.

private void toolStripComboBox1_KeyUp(object sender, KeyEventArgs e)
{
	if (e.KeyData == Keys.Enter)
	{
		MessageBox.Show("ENTER");
	};
}

Create a custom ToolStripComboBox control that encapsulates a custom ComboBox control. In this custom ComboBox control, override the IsInputKey method to capture the ENTER key. To do this, use code that resembles the following code example.
protected override bool IsInputKey(System.Windows.Forms.Keys keyData) { if(keyData == Keys.Enter){ return true; }else{ return false; } }

Back to the top