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我正在实现自定义行为子分类表单控件,但我无法设法访问组合框的DroppedDown属性。在帮助寻找,它应该在CF.NET 2.0支持:访问WinCE组合框DroppedDown属性(.NET CF 2.0)
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
namespace xCustomControls
{
public partial class xComboBox : System.Windows.Forms.ComboBox
{
private ComboBox comboBox1;
public xComboBox()
{
InitializeComponent();
this.KeyDown += new KeyEventHandler(this.KeyDownHandler);
}
private void KeyDownHandler(object sender, KeyEventArgs e)
{
// DroppedDown doesn't appear in the IntelliSense of ComboBox.
// or this.comboBox1.
if (((ComboBox)sender).DroppedDown) // fail!
return;
switch (e.KeyData)
{
case Keys.Up:
case Keys.Enter:
case Keys.Down:
e.Handled = true;
this.Parent.SelectNextControl((Control)sender, e.KeyData != Keys.Up, true, true, true);
...
失败“System.Windows.Forms.ComboBox”不包含“DroppedDown”,没有扩展方法的定义“DroppedDown”接受类型'System.Windows.Forms.ComboBox'的第一个参数可能被发现
如何访问该属性?
TIA, 巴勃罗
就像一个魅力, 谢谢! 明天我会尝试着明天这么做,所以今天SO说“我的投票是锁定的”:( – PabloG 2010-05-18 15:12:37
@PabloG,你好,我没有。不在紧凑框架中。 – 2010-05-18 20:27:53