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public static void bindType(ComboBox cb)
{
DataBaseOperatorII db1 = new DataBaseOperatorII();
DataSet ds = db1.ExecuteDataSet(get_type);
cb.ValueMember = "ID";
cb.DisplayMember = "name";
cb.DataSource = ds.Tables[0];
}
//绑定分类
public static void bindCategory(ComboBox cbtype, ComboBox cbCategory)
{
DataBaseOperatorII db2 = new DataBaseOperatorII();
DataSet ds1 = db2.ExecuteDataSet(string.Format(get_category, cbtype.SelectedValue));
cbCategory.ValueMember = "ID";
cbCategory.DisplayMember = "name";
cbCategory.DataSource = ds1.Tables[0];
}
public class Class2:ComboBox
{
private String _displayMeber;
private event EventHandler OnSetDisplayMeber;
public new String DisplayMember
{
get { return _displayMeber; }
set {
//在set的时候委托引发事件
// this.OnSetDisplayMeber += new EventHandler(Class2_OnSetDisplayMeber);
this._displayMeber = value;
}
}
}