Question

C#如何获取asp:DropDownList里的文本值

DropDownList里的文本值值是从数据库里面填充的,我需要从后台页取到,在线等回答!

Answer 1

DataTable dt = new DataTable();
dt = SqlHelper.ExecuteDataTable(SqlHelper.ConnectionStringLocalTransaction, CommandType.Text, "select id,name from tablename", null);
DropDownList1.DataSource = dt;
DropDownList1.DataTextField = "name";//绑定的文本内容，也就是下拉列表中的内容
DropDownList1.DataValueField = "id";//对应的value值
DropDownList1.DataBind();
DropDownList1.Items.Insert(0,new ListItem("请选择","0"));

Answer 2

string str=ddlType.selectItem.text;
switch(str)
{
case:"韩国"
Response.Redirect("a");
case:"中国"
Response.Redirect("c");
...........
}
或是用if语句

Answer 3

DropDownList1.selectvalue

Answer 4

DropDownList1.Text属性