关于ListBox的几个问题

Winfrom ListBox绑定数据源list界面不更新问题与绑定数据源不可CRUD问题

场景：获取一个listbox的选中项添加到另一个listbox中

解决方案-1：不要直接绑定DataSource 先把ListBox绑定到BindingSource bs中在绑定bs即可

代码案例：

1-1：可更新全部添加

 private void btnAdd_Click(object sender, EventArgs e)
 
     {
 
     ListBox.SelectedObjectCollection selectObj = this.listLeft.SelectedItems;
 
foreach (DataRowView item in selectObj)
 
{
 
Sta sta = new Sta();
 
sta.STCD = int.Parse(item.Row.ItemArray[].ToString());
 
sta.Name = item.Row.ItemArray[].ToString();
 
list.Add(sta);
 
}
 
BindingSource bs = new BindingSource();
 
bs.DataSource = list;
 
this.listRight.DataSource = bs;
 
this.listRight.DisplayMember = "NAME";
 
this.listRight.ValueMember = "STCD";
 
     }

1-2:更改后的 去掉重复项添加

  private void btnAdd_Click(object sender, EventArgs e)
 
{
 
ListBox.SelectedObjectCollection selectObj = this.listLeft.SelectedItems;
 
foreach (DataRowView item in selectObj)
 
{
 
bool b = true;
 
//要查看listright是否已经有了这一项，有就不添加
 
foreach (Model.Sta rightItem in this.listRight.Items)
 
{
 
if (rightItem.Name == item.Row.ItemArray[].ToString())
 
{
 
b = false;
 
}
 
}
 
if (b)
 
{
 
Sta sta = new Sta();
 
sta.STCD = int.Parse(item.Row.ItemArray[].ToString());
 
sta.Name = item.Row.ItemArray[].ToString();
 
list.Add(sta);
 
}
 
}
 
BindingSource bs = new BindingSource();
 
bs.DataSource = list;
 
this.listRight.DataSource = bs;
 
this.listRight.DisplayMember = "NAME";
 
this.listRight.ValueMember = "STCD";
 
}

1-3: 妈蛋 设置 DataSource 属性后无法修改项集合 只能绑定到list集合了，不知道有没有好办法解决

····换成list还是不行，根本原因就是不能用datasource去绑定

只能直接添加item

1-4 最终版本 0.0

 #region 添加右边listboxitems
 
ListBox.SelectedObjectCollection selectObj = this.listLeft.SelectedItems;
 
foreach (Model.Sta item in selectObj)
 
{
 
bool b = true;
 
//要查看listright是否已经有了这一项，有就不添加
 
foreach (Model.Sta rightItem in this.listRight.Items)
 
{
 
if (rightItem.Name == item.Name)
 
{
 
b = false;
 
}
 
}
 
if (b)
 
{
 
Sta sta = new Sta();
 
sta.STCD = item.STCD;
 
sta.Name = item.Name;
 
this.listRight.Items.Add(sta);
 
}
 
}
 
this.listRight.DisplayMember = "NAME";
 
this.listRight.ValueMember = "STCD";
 
#endregion
 
//删除左边已经添加的item
 
//1-2:把选中的item移除
 
int icount = listLeft.SelectedItems.Count;
 
for (int i = ; i < icount; i++)
 
{
 
this.listLeft.Items.Remove(listLeft.SelectedItems[icount -  - i]);
 
}