从下拉列表填充项目 [英] populating items from dropdownlist

问题描述

从服务器端填充它们时，我想在下拉列表中显示请选择....."作为第一项.

我后面有这个代码

I want to display "Please select....." as the first item in the dropdownlist while populating them from server side.

I have this code behind

ddldept.DataSource = emp.GetDepartments();
               ddldept.DataTextField = "deptid";
               ddldept.DataValueField = "deptname";
               ddldept.DataBind();

我有点困惑，请帮助

问候
sreekanth

i am getting bit confusion please help

regards
sreekanth

推荐答案

绑定下拉菜单后，添加以下代码:

Add below code after you bind your dropdown:

ddldept.DataSource = emp.GetDepartments();
               ddldept.DataTextField = "deptid";
               ddldept.DataValueField = "deptname";
               ddldept.DataBind();
ddldept.Items.Insert(0, new ListItem("--Please Select--", "0"));

这是代码

here is the code

ddldept.DataSource = emp.GetDepartments();
ddldept.DataTextField = "deptid";
ddldept.DataValueField = "deptname";
ddldept.DataBind();
ddldept.Items.Insert(0, new ListItem("Please select.....", "0"));

P.S.只需确保在验证时处理此请选择....."即可

P.S. just make sure you handle this "Please select....." while validations

尝试此

DropDownList1.Items.Insert(0,new ListItem("Please select"));

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