重新安排DropDownValues

本文介绍了重新安排DropDownValues的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

每个人 我有一个 DropDownList ，在删除"按钮上，单击下拉列表中的数字将被删除，在添加"按钮上，单击编号被添加到下拉列表中. 现在，如果下拉菜单中有1、2、3，并且删除了1，我希望将数字2和3替换为1和2.我不确定如何执行此操作.有人可以帮我吗?

Hi , EveryOne I have a DropDownList ,On a Delete button click the numbers from the dropdown get deleted and and on Add Button click numbers are added to the dropdown. Now if have 1, 2, 3 in my dropdown and if I delete 1, I want the number 2 and 3 to be replaced by 1 and 2. I am not sure how to do this. Can someone please help me?

推荐答案

首先获取下拉列表的数据源，对其进行排序，然后再次将数据源设置为下拉列表. 试试这个: Hi, First get the datasouce of your dropdownlist, sort it and set the datasouce again to the dropdownlist. Try this: DataTable dt = (DataTable)DropDownList1.DataSource; //Sort your datatable here. dt.DefaultView.Sort = "Parameter_Name ASC"; dt = dt.DefaultView.ToTable(); DropDownList1.DataSource = dt; DropDownList1.DataTextField = "Description"; DropDownList1.DataValueField = "Code"; DropDownList1.DataBind();

--Amit

--Amit

pls参见此处: www.eggheadcafe/community/csharp/2/10091141/remove-selected-items-from-dropdownlist.aspx [ ^ ] pls see here: www.eggheadcafe/community/csharp/2/10091141/remove-selected-items-from-dropdownlist.aspx[^]