wpf 右键ListBox可编辑

之前wpf项目用到listbox右键编辑的功能，想到当时找资料不好找，特地将自己的结果拿出来与大家分享，探讨。

首先添加一个listbox。
  <ListBox x:Name="List_lianxiren" MouseDown="List_lianxiren_MouseDown"  SelectionMode="Extended" Margin="15,0" />

后台代码：

TextBox txtNode = new TextBox();
ListBoxItem selectNode = null;

string olddata;

//绑定数据到listboxitem；其中array不仅仅局限于数组，此处用数组举例而已；
public void BindingData()
{
     　　 ListBoxItem tvi;
            MenuItem menuitem;
            ContextMenu contextmenu;
            for (int i = 0; i < Array.Length; i++)
            {
                tvi = new ListBoxItem();

                tvi.Content = Array[i].Owner;
                tvi.Name = "_" + Array[i].id.ToString();

                contextmenu = new System.Windows.Controls.ContextMenu();
                menuitem = new MenuItem();
                menuitem.Header = "编辑";
                menuitem.Click += new RoutedEventHandler(menuitem_Click);
                contextmenu.Items.Add(menuitem);
                contextmenu.Width = 130;
                tvi.ContextMenu = contextmenu;
                tvi.GotFocus += new RoutedEventHandler(tvi_GotFocus);////
                List_lianxiren.Items.Add(tvi);
            }

}

//编辑框失去焦点方式一
private void List_lianxiren_MouseDown(object sender, MouseButtonEventArgs e)
{ EditNameSaveToServer(); }

//点击编辑按钮，变为编辑框

 void menuitem_Click(object sender, RoutedEventArgs e)
{
            selectNode = List_lianxiren.SelectedItem as ListBoxItem;

            txtNode = new TextBox();
            if (!(selectNode.Content is TextBox))
            {
                olddata= selectNode.Content.ToString();
                txtNode.Text = selectNode.Content.ToString();
                txtNode.MaxLength = 20;
                txtNode.Focus();
                selectNode.Content = txtNode;
            }
}

//编辑框失去焦点方式二

void tvi_GotFocus(object sender, RoutedEventArgs e)
{
            if (selectNode == null)
            {
                selectNode = sender as ListBoxItem;
                txtNode = new TextBox();
                txtNode.Text = selectNode.Content.ToString();
                olddata= selectNode.Content.ToString();
            }
            EditNameSaveToServer();
}

//编辑框失去焦点后的处理事件，将数据保存到服务器什么的处理。
private void EditNameSaveToServer()
{
            if (!string.IsNullOrWhiteSpace(txtNode.Text))
            {
                selectNode.Content = txtNode.Text;
            }
            else
            {
                selectNode.Content = olddata;
            }
}