如果是Dev 控件 ComboBoxEdit 禁止滚动事件则只需设置一个属性即可：
ComboBoxEdit.Properties.AllowMouseWheel = false;
设置器里设置：
以下是微软自带的combobox用法：
/// <summary>
/// 判断是否是ComboBox在进行鼠标滚轮动作
/// </summary>
public bool isWheel = false;
/// <summary>
/// 用来存放在执行鼠标滚轮前，ComboBox中的最后值
/// </summary>
public string strComB = null;
在Form_Load中写入以下代码：
//鼠标滚动事件注册
cmbStep.MouseWheel += new MouseEventHandler(ComboBox_MouseWheel);
//滚动事件（控制多个下拉框滚动事件）
void ComboBox_MouseWheel(object sender, MouseEventArgs e) { try { switch ((sender as ComboBoxEdit).Name) { case "cmbSpecialArea": // 把当前ComboBox的值存放到变量中 strComB = cmbSpecialArea.Text; isWheel = true; break; case "cmbDiffAjustId": strComB = cmbDiffAjustId.Text; isWheel = true; break; case "cmbStep": strComB = cmbStep.Text; isWheel = true; break; } } catch (Exception ex) { LogHelper.Error(ex.ToString()); MsgBox.Warning(ex.ToString()); } } //鼠标按下事件（找对应下拉框的MouseDown事件绑定） void ComboBox__MouseDown(object sender, MouseEventArgs e) { isWheel = false; } //下拉框text改变事件（找对应下拉框的TextChanged事件绑定） public void combobox_change(object sender, EventArgs e) { try { switch ((sender as ComboBoxEdit).Name) { case "cmbSpecialArea": if (isWheel) { cmbSpecialArea.Text = strComB; } break; case "cmbDiffAjustId": if (isWheel) { cmbDiffAjustId.Text = strComB; } break; case "cmbStep": if (isWheel) { cmbStep.Text = strComB; } break; } } catch (Exception ex) { LogHelper.Error(ex.ToString()); MsgBox.Warning(ex.ToString()); } }
第二种方法时属于全局控制滚动效果，即是，页面所有滚动，滚动条失去效果。
public partial class Form1 : Form, IMessageFilter { public Form1() { InitializeComponent(); } #region IMessageFilter 成员 public bool PreFilterMessage(ref Message m) { if (m.Msg == 522) { return true; } else { return false; } } #endregion private void Form1_Load(object sender, EventArgs e) { Application.AddMessageFilter(this); } }
